Quick Answer: The UWELD TA90 acetylene regulator, model 1C008-0044 ACE, is a single-stage pressure regulator designed for compatible oxy-acetylene welding, cutting, brazing, and heating systems. It features a forged brass body, dual pressure gauges, an integrated safety relief valve, and a shut-off valve. UWELD's 2023 catalog lists a maximum inlet pressure of 15 bar, maximum outlet pressure of 1 bar, G5/8" inlet, and G3/8"-19 LH outlet for this configuration. Buyers should confirm these ratings against the current technical datasheet before ordering.
Selecting the right acetylene regulator is an important decision for welding equipment distributors, metal fabrication workshops, and industrial gas equipment importers.
Although acetylene regulators may look similar to oxygen or propane regulators, they are designed for different gas services and operating requirements. Using an incorrect regulator can create compatibility problems and serious safety hazards.
For B2B buyers, the challenge is not only finding a regulator at a competitive price. It is ensuring that the equipment matches the intended gas cylinder, torch system, pressure requirements, applicable standards, and long-term supply needs.
UWELD, operated by Ningbo United Tools Co., Ltd., supplies industrial gas regulators and related welding and cutting equipment for international customers.
This guide examines the TA90 acetylene regulator's technical specifications, construction, connection requirements, industrial applications, inspection criteria, and OEM/wholesale purchasing considerations.
Buyers can review the UWELD 1C008-0044 TA90 Acetylene Regulator for product information and customization inquiries.
Key Takeaways: What Makes the TA90 Acetylene Regulator Different?
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Acetylene-specific configuration: The 1C008-0044 ACE is identified for acetylene service and must not be confused with the oxygen version.
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Single-stage pressure reduction: The regulator uses one pressure-reduction stage for suitable oxy-acetylene applications.
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Forged brass construction: UWELD identifies a forged brass body as a key product feature.
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Dual pressure gauges: The regulator provides supply-side and outlet-side pressure indications.
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Integrated protective features: The TA90 series includes a safety relief valve and shut-off valve according to UWELD's catalog.
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Connection requirements: Historical catalog specifications identify a G5/8" inlet and G3/8"-19 left-hand outlet for the acetylene version.
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OEM purchasing: Buyers should verify the exact gas-service variant, specifications, inspection records, and approved component configuration before bulk purchasing.
The most important purchasing principle is to verify gas compatibility and pressure ratings before evaluating appearance, accessories, or price.
What Are the Technical Specifications of the UWELD TA90 Acetylene Regulator?
UWELD identifies the acetylene configuration as 1C008-0044 ACE, part of its TA90 regulator series.
The official product listing describes single-stage pressure regulation, forged brass construction, and an integrated safety relief valve.
Its 2023 product catalog provides additional technical specifications for the TA90 series.
TA90 Acetylene Regulator Specification Table
| Specification | Published Information |
|---|---|
| Brand | UWELD |
| Model | 1C008-0044 |
| Variant | 1C008-0044 ACE |
| Series | TA90 / UW-1434 |
| Product type | Single-stage gas pressure regulator |
| Approved gas configuration | Acetylene |
| Body material | Forged brass |
| Pressure indication | Dual gauges |
| Maximum inlet pressure | 15 bar |
| Maximum outlet pressure | 1 bar |
| Inlet connection | G5/8" |
| Outlet connection | G3/8"-19 LH |
| Safety feature | Integrated safety relief valve |
| Additional control feature | Built-in shut-off valve |
| Connection customization | Subject to technical confirmation |
| Applications | Compatible gas welding, cutting, brazing, and heating |
Source: UWELD 2023 Product Catalog, TA90 Gas Regulator section, printed pages 97–98. The stated pressure ratings and connections are historical catalog specifications. Buyers must confirm the latest approved product revision before use or purchase.
Why These Specifications Matter
The regulator's inlet and outlet pressure ratings describe different limits.
The maximum inlet pressure relates to the approved supply-side operating conditions.
The maximum outlet pressure describes the upper limit of the regulator's specified delivery-pressure capability.
Neither value should be interpreted as an instruction for setting a welding or cutting torch.
The actual working pressure must be determined from the approved equipment configuration, manufacturer instructions, and applicable safety requirements.
Why Does Acetylene Require a Dedicated Pressure Regulator?
Acetylene is a flammable fuel gas used with oxygen in certain welding, cutting, and heating processes.
Unlike many conventional compressed gases, acetylene is commonly stored dissolved in a suitable solvent inside specially designed cylinders.
Its properties make correct pressure regulation, equipment selection, and operating procedures particularly important.
Understanding Acetylene Pressure Limits
In the United States, OSHA 29 CFR 1910.253 establishes a maximum acetylene utilization pressure of 15 psig, subject to the regulation's specific exceptions.
This restriction should not be confused with the regulator's cylinder-side inlet pressure rating.
For the historical TA90 ACE configuration, the published values are:
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Maximum inlet pressure: 15 bar.
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Maximum outlet pressure: 1 bar.
The latter is approximately 14.5 psi, but that value represents a published maximum outlet rating, not the normal working-pressure setting.
Actual delivery pressure may need to be substantially lower.
Operators should follow the exact torch, tip, regulator, and gas supplier instructions.
Why Oxygen and Acetylene Regulators Are Not Interchangeable
An oxygen regulator is designed for oxygen service.
An acetylene regulator is designed for the specific requirements of acetylene.
These configurations may differ in pressure ratings, internal components, connections, and gas-service requirements.
A regulator should never be selected solely because its body shape, gauge arrangement, or cylinder fitting appears familiar.
For international procurement, the exact gas-service marking and product variant must be included in the purchasing specification.
TA90 Acetylene vs Oxygen Regulator: What Are the Differences?
UWELD offers both oxygen and acetylene configurations within the TA90 product family.
Although they share a similar overall product design, their technical limits are substantially different.
UWELD TA90 Configuration Comparison
| Specification | TA90 Acetylene | TA90 Oxygen |
|---|---|---|
| Variant | 1C008-0044 ACE | 1C008-0044 OXY |
| Gas service | Acetylene | Oxygen |
| Published maximum inlet pressure | 15 bar | 250 bar |
| Published maximum outlet pressure | 1 bar | 12.5 bar |
| Inlet connection | G5/8" | G5/8" |
| Outlet connection | G3/8"-19 LH | G3/8"-19 RH |
| Typical visual identification | Red adjustment knob | Blue adjustment knob |
| Primary application | Fuel-gas pressure control | Oxygen pressure control |
Pressure and connection values are from the UWELD 2023 catalog. Color descriptions reflect the product images, but color alone is not proof of gas compatibility.
Why the Outlet Thread Direction Matters
The catalog identifies the acetylene outlet as left-hand threaded (LH), while the oxygen version uses a right-hand (RH) outlet.
This distinction is important for compatible downstream connections and product identification.
However, thread direction alone does not establish complete compatibility.
Buyers must also verify the fitting dimensions, sealing arrangement, pressure rating, and intended gas service.
Why the Same Model Number Can Cause Purchasing Errors
The TA90 series uses the same base model number for several gas-specific configurations.
If a purchasing order specifies only "1C008-0044" without identifying the gas, a supplier may need further clarification.
For industrial importers, the better practice is to specify the complete gas-service variant.
Recommended purchasing reference: UWELD 1C008-0044 ACE — TA90 Acetylene Regulator.
This simple identification step can help prevent wrong-gas substitutions during repeat orders.
How Do the Dual Gauges and Safety Features Work?
The TA90 series combines pressure regulation with separate pressure indications and additional control features.
Each component has a distinct purpose.
Dual-Gauge Pressure Monitoring
The two gauges indicate different pressure conditions:
Supply-side gauge: Indicates pressure at the regulator inlet.
Delivery-side gauge: Indicates the regulated outlet pressure.
These readings help qualified operators assess the gas system under approved operating conditions.
However, acetylene cylinder pressure readings should not be interpreted as a precise measurement of remaining usable gas quantity.
Cylinder temperature, solvent conditions, and the cylinder's storage characteristics can affect pressure readings.
For procurement, gauge accuracy, scale, identification, and protection should be evaluated using the approved technical specification.
Integrated Safety Relief Valve
UWELD describes an integrated safety relief valve in the TA90 regulator series.
A relief valve is intended to perform a specified pressure-relief function.
The presence of a relief valve does not guarantee protection against every possible gas-system hazard.
Buyers should request information about the valve's design, applicable performance requirements, and verification procedures.
Built-In Shut-Off Valve
The TA90 catalog also identifies a built-in shut-off valve.
This feature provides an additional gas-control function within the regulator assembly.
It does not replace the cylinder valve or the manufacturer's required isolation and shutdown procedures.
Safety Relief Valve vs Flashback Arrestor
These components perform different functions.
| Component | Main Function |
|---|---|
| Pressure regulator | Reduces and controls gas delivery pressure |
| Safety relief valve | Provides specified pressure-relief protection |
| Shut-off valve | Controls or interrupts gas flow |
| Non-return valve | Restricts reverse flow under rated conditions |
| Flashback arrestor | Prevents flame propagation under specified conditions |
An integrated regulator relief valve must not be treated as a substitute for any required flashback protection.
The complete gas system should be evaluated according to its equipment configuration and applicable requirements.
Where Is the TA90 Acetylene Regulator Used?
The TA90 acetylene regulator is intended for compatible oxy-acetylene applications.
Its practical suitability depends on the torch, nozzle, gas demand, connection arrangement, and required operating conditions.
Industrial Application Matrix
| Application | Regulator Function | Important Selection Requirement |
|---|---|---|
| Oxy-acetylene welding | Controls acetylene supply to approved welding equipment | Suitable pressure and gas flow |
| Steel cutting | Supplies regulated fuel gas to compatible cutting equipment | Torch and nozzle compatibility |
| Metal fabrication | Supports applicable welding and cutting operations | Equipment specifications and serviceability |
| Brazing | Supplies acetylene for approved brazing processes | Suitable heating equipment |
| Industrial maintenance | Supports gas equipment used in appropriate repair work | Portability and component compatibility |
| Welding equipment distribution | Provides acetylene regulator options for professional users | Standardized specifications and repeat supply |
Metal Fabrication Workshops
Fabrication workshops may use oxy-acetylene systems for suitable gas welding, cutting, and heating tasks.
The regulator controls the acetylene supply, while the oxygen regulator independently controls oxygen delivery.
The torch and nozzle determine the gas requirements for the specific operation.
Industrial Repair and Maintenance
Maintenance teams may require oxy-acetylene equipment for component removal, suitable metal repairs, and controlled heating.
For these applications, the purchasing decision should consider equipment compatibility, operating limits, hose arrangements, and replacement-parts availability.
Brazing and Heating
Acetylene can be used in approved oxy-fuel brazing and heating systems.
However, the appropriate gas pressure and flow conditions depend on the actual torch and heating attachment.
A regulator should not be described as suitable for every heating application without model-specific verification.
TA90 vs Other UWELD Acetylene Regulators: Which Should Buyers Choose?
UWELD supplies several acetylene regulator configurations.
Different products may use different cylinder connections, adjustment mechanisms, or construction arrangements.
UWELD Acetylene Regulator Comparison
| Model | Published Product Characteristics | Main Procurement Consideration |
|---|---|---|
| 1C008-0044 ACE | TA90 single-stage regulator; forged brass; dual gauges; relief and shut-off features | G5/8 inlet, G3/8"-19 LH outlet, approved pressure range |
| 1C008-0005 | Medium-duty acetylene regulator; forged brass and dual gauges | Alternative regulator design and connection requirements |
| 1C008-0008 | G350 industrial acetylene regulator | Industrial application and current specification |
| 1C008-0080 ACE | Single-stage acetylene regulator with CGA-510 inlet | North American-style cylinder compatibility evaluation |
These are different product configurations, not a verified performance ranking.
When Is the TA90 More Relevant?
The TA90 is worth evaluating when the buyer requires its specified pressure range, construction features, control arrangement, and compatible connections.
For example, a distributor serving customers whose equipment requires the TA90's published G5/8" inlet and G3/8"-19 LH outlet can use those details to begin technical qualification.
When Should Buyers Consider CGA-510 Alternatives?
Where the destination market uses a specified CGA-510 acetylene cylinder connection, a compatible CGA-510 regulator may be more appropriate.
The UWELD 1C008-0080 Medium Acetylene Regulator is one relevant model for comparison.
Buyers should still verify the complete regulator specification, including outlet connection, operating limits, and downstream compatibility.
The correct choice depends on the actual equipment system, not simply the country or product appearance.
How Should Industrial Buyers Inspect Acetylene Regulators Before Bulk Orders?
A product's appearance does not provide sufficient evidence of manufacturing consistency or safe performance.
For industrial importers and OEM buyers, quality control should include approved component specifications, functional verification, product identification, and documented inspection results.
Recommended TA90 Inspection Checklist
| Inspection Area | What to Verify | Purchasing Value |
|---|---|---|
| Product identification | Correct 1C008-0044 ACE variant | Prevents wrong-gas orders |
| Body construction | Approved forged brass specification | Confirms material requirements |
| Inlet connection | Required cylinder interface | Prevents installation problems |
| Outlet connection | G3/8"-19 LH or approved configuration | Ensures downstream compatibility |
| Pressure gauges | Specified scales and condition | Supports correct pressure monitoring |
| Regulating mechanism | Approved operating performance | Verifies pressure-control requirements |
| Safety relief valve | Required design and verification | Confirms specified protective feature |
| Shut-off valve | Functional condition | Supports gas-control verification |
| Gas tightness | Applicable leakage limits | Identifies assembly defects |
| Product marking | Model, gas service, required identification | Improves traceability |
| Packaging | Correct accessories and instructions | Reduces shipment mistakes |
| Batch documentation | Inspection and approved specification | Supports repeat-order consistency |
Why Gas-Tightness Verification Matters
Gas leakage can create significant hazards in combustible-gas systems.
A distributor should not assume that a visually undamaged regulator is leak-free.
Testing must follow the applicable product requirements and approved methods, using qualified personnel and suitable equipment.
The buyer should agree on the required inspection records before approving production.
What About ISO 2503?
ISO 2503:2009, together with its applicable amendment, addresses pressure regulators used for gas cylinders in welding, cutting, and related operations.
The standard includes requirements relevant to dissolved acetylene.
However, referring to ISO 2503 does not establish that every UWELD regulator carries independent product certification.
Buyers should request current conformity evidence for the exact ordered model where applicable.
UWELD describes its manufacturing and quality-management capabilities through its industrial solutions page.
What Are the Main Purchasing Risks for Acetylene Regulators?
For distributors, purchasing errors can affect many units and generate expensive returns or customer complaints.
The most common risks are often related to incomplete specifications rather than the regulator's appearance.
Purchasing Risk Matrix
| Risk | Possible Consequence | Recommended Control |
|---|---|---|
| Wrong gas-service variant | Inappropriate regulator supplied | Specify complete model suffix |
| Incorrect cylinder inlet | Regulator cannot connect correctly | Verify cylinder valve specifications |
| Incorrect outlet | Hose or protective-device mismatch | Approve thread and fitting details |
| Misinterpreted pressure rating | Unsuitable application selection | Confirm manufacturer operating limits |
| Unapproved component change | Repeat-order inconsistency | Maintain controlled BOM |
| Missing test records | Delayed product acceptance | Define documents in the RFQ |
| Incomplete packaging | Customer complaints | Approve packing list |
| Inconsistent product marking | Inventory errors | Establish SKU traceability |
How to Prevent Repeat-Order Problems
An approved sample should be accompanied by a documented product specification.
The specification should identify the gas-service version, pressure ratings, connection dimensions, relevant components, inspection requirements, and packaging.
Future orders should reference the same approved revision.
Any proposed change affecting performance, compatibility, or safety should receive technical approval before production.
What Affects the Wholesale Price of a TA90 Acetylene Regulator?
The total purchasing cost of an industrial regulator depends on more than the basic unit quotation.
Relevant cost factors include materials, gauge configuration, connection requirements, inspection, packaging, shipping, and aftermarket support.
Total Cost of Sourcing
Total Sourcing Cost = Product Purchase Cost + Quality Inspection + Packaging + Freight + Inventory + Expected After-Sales Costs
| Cost Factor | Commercial Impact |
|---|---|
| Forged brass construction | Material and production cost |
| Dual gauges | Component specification and cost |
| Connection variants | Engineering and production requirements |
| Relief and shut-off features | Component and verification requirements |
| Quality inspection | Testing and documentation costs |
| OEM branding | Artwork, labeling and packaging |
| Order quantity | Supplier quotation and inventory planning |
| International shipping | Landed cost |
| Spare-parts availability | Long-term support expenses |
A cheaper regulator is not automatically the better procurement choice.
Buyers should compare technically equivalent products using the same gas-service requirements and purchasing conditions.
No general cost-saving percentage should be claimed without actual quotations or operational data.
How Can Buyers Select the Right TA90 Acetylene Regulator in Three Steps?
A structured qualification process helps purchasing managers avoid mistakes.
Step 1: Confirm Gas and Application Requirements
Identify the intended acetylene supply, torch application, destination market, and required operating conditions.
Decision rule: Exclude any regulator that is not specifically approved for the intended gas service.
Step 2: Verify Technical Compatibility
Confirm the inlet, outlet, rated pressure limits, gauge specifications, and approved protective features.
For the TA90, verify whether the current ACE configuration matches the historically published G5/8" inlet and G3/8"-19 LH outlet.
Decision rule: Approve only configurations supported by appropriate technical documentation.
Step 3: Evaluate Quality and Commercial Conditions
Review samples, inspection criteria, current datasheets, MOQ, packaging, delivery terms, and after-sales responsibilities.
Decision rule: Select the configuration that provides the best verified combination of technical suitability, quality consistency, and purchasing value.
For product-specific assistance, visit the UWELD TA90 Acetylene Regulator page.
OEM/ODM Acetylene Regulator Supply for Industrial Brands
UWELD supports OEM/ODM inquiries for its welding and gas-control product range.
Potential customization requirements may include branding, packaging, product identification, and technically feasible configuration changes.
For acetylene regulators, any change to gas compatibility, pressure-regulating components, or connection specifications requires appropriate technical assessment.
Recommended OEM Workflow
1. Technical requirements: Confirm the gas service, application, regulator configuration, and destination market.
2. Product selection: Choose the correct approved TA90 variant.
3. Sample evaluation: Check product identity, technical compatibility, and required inspection results.
4. Branding approval: Confirm labels, model markings, packaging, and documentation.
5. Production planning: Agree on quantities, inspection requirements, and delivery conditions.
6. Repeat-order control: Establish a controlled SKU and approval procedure for future component changes.
MOQ and Lead Time
According to UWELD's FAQ page, minimum order quantities vary by product and customization requirements.
Product samples may be arranged, while delivery schedules depend on availability and the complexity of the order.
Buyers should obtain written confirmation of the actual quotation, sample conditions, MOQ, and delivery schedule for their selected TA90 configuration.
What Should Buyers Include in a TA90 Acetylene Regulator RFQ?
A complete RFQ helps the supplier confirm technical suitability before preparing the commercial offer.
Recommended RFQ Checklist
| RFQ Item | Information to Provide |
|---|---|
| Product | TA90 Acetylene Regulator |
| Model | 1C008-0044 ACE |
| Gas service | Acetylene |
| Intended application | Welding, cutting, brazing, or maintenance |
| Cylinder supply | Actual cylinder valve configuration |
| Maximum inlet rating | Required approved specification |
| Outlet pressure range | Required equipment-compatible range |
| Flow requirement | Expected gas demand |
| Inlet connection | G5/8" or requested approved option |
| Outlet connection | G3/8"-19 LH or requested approved option |
| Gauge requirements | Approved ranges and identification |
| Quality documents | Datasheet, inspection and relevant conformity records |
| Branding | UWELD or private label |
| Order quantity | Sample and expected bulk volume |
| Destination market | Country and applicable requirements |
| Packaging | Standard or OEM |
| Delivery | Required schedule and shipping terms |
The RFQ should make clear whether the buyer requires the published catalog configuration or a separately approved custom version.
Need a current specification or wholesale quotation? Contact UWELD to discuss TA90 acetylene regulator availability, connection options, samples, OEM branding, and purchasing requirements.
Frequently Asked Questions About the TA90 Acetylene Regulator
1. What is the UWELD TA90 acetylene regulator?
The UWELD TA90 is a single-stage pressure regulator intended for compatible acetylene gas systems. The acetylene configuration is identified as model 1C008-0044 ACE.
2. What is the difference between 1C008-0044 ACE and 1C008-0044 OXY?
ACE identifies the acetylene configuration, while OXY identifies the oxygen configuration. Their gas service, pressure ratings, and outlet connection requirements differ. They are not interchangeable.
3. What are the published TA90 acetylene regulator pressure ratings?
UWELD's 2023 catalog lists a maximum inlet pressure of 15 bar and maximum outlet pressure of 1 bar for the acetylene version. These are historical ratings and not recommended operating settings. Buyers should verify the latest product specification.
4. What connections does the TA90 acetylene regulator use?
The 2023 catalog identifies a G5/8" inlet and G3/8"-19 left-hand outlet for the acetylene configuration. Buyers must confirm compatibility with their actual cylinder and downstream equipment.
5. Is the TA90 acetylene regulator single-stage or two-stage?
The product is described as a single-stage regulator, meaning pressure reduction occurs through one regulating stage.
6. What is the purpose of the dual gauges?
The gauges provide pressure indications for the supply side and regulated outlet side. Their exact measuring ranges and performance requirements should be verified against the current datasheet.
7. Does the integrated safety relief valve replace a flashback arrestor?
No. A pressure relief valve and flashback arrestor serve different protective functions. The correct protective devices must be specified for the complete gas system.
8. Can the TA90 acetylene regulator be used for propane?
Not unless the exact configuration has been approved for propane service. UWELD's catalog identifies different gas-specific TA90 configurations, and buyers should verify the model variant rather than assume interchangeability.
9. Does UWELD support OEM acetylene regulator orders?
UWELD supports OEM/ODM inquiries involving branding, packaging, and technically feasible configuration changes. Specific options, MOQ, and production requirements are confirmed for each project.
10. How can I request a TA90 acetylene regulator quotation?
Send the required model, gas service, cylinder connection, outlet requirements, pressure and flow specifications, destination market, quantity, and branding needs through the UWELD contact page.
Conclusion
Choosing the correct TA90 acetylene regulator requires careful evaluation of gas-service compatibility, pressure limits, inlet and outlet connections, protective features, and product-specific quality requirements.
The UWELD 1C008-0044 ACE is a single-stage acetylene regulator featuring forged brass construction, dual pressure gauges, an integrated safety relief valve, and a shut-off valve.
For industrial distributors, importers, and OEM brands, the most important purchasing considerations are verified technical specifications, correct acetylene identification, suitable equipment connections, documented quality checks, and consistent repeat-order configurations.
Buyers should not confuse the acetylene version with the oxygen TA90 regulator, even though both share the same base model family.
UWELD supplies professional gas regulators and related welding and cutting equipment for international industrial markets, with support for wholesale sourcing and OEM/ODM inquiries.
To evaluate the product, visit the UWELD TA90 Acetylene Regulator product page, explore the UWELD Gas Cutting product range, or contact UWELD to request current technical specifications, connection confirmation, sample information, and a wholesale quotation.
