Products
Two-way Socket Weld Ball Valve

Two-way Socket Weld Ball Valve

The Two-Way Socket Weld Ball Valve is engineered for permanent, leak-free performance in high-pressure and high-temperature industrial applications. Featuring precision socket weld ends that create robust, integral connections with piping systems, this valve eliminates potential leak paths associated with flanged or threaded joints. Manufactured from forged stainless steel (SS304/316) or carbon steel to exacting standards, it delivers exceptional reliability in critical services including oil and gas production, chemical processing, and power generation. Available in sizes from DN8 to DN100 with pressure ratings up to PN100 (Class 800), this valve combines superior sealing technology with rugged construction for demanding operating conditions.

Product Features & Competitive Advantages

 

1

Permanent Leak-Free Connection:Socket weld ends provide a robust, integral joint that eliminates gaskets and thread-related leakage points. The precision-machined socket design ensures perfect pipe alignment and full-penetration welds, creating a permanent connection suitable for the most demanding high-pressure applications.

 

2

Enhanced Pressure Containment:Forged construction with reinforced body walls and precision-machined components withstands pressures up to Class 800. The superior material density and grain structure of forged materials provide exceptional resistance to pressure cycling and thermal stress compared to cast alternatives.

 

3

Compact, Space-Saving Design:The socket weld configuration offers a significantly reduced installation footprint compared to flanged valves, making it ideal for compact piping arrangements, skid-mounted equipment, and space-constrained applications where every millimeter counts.

 

4

Advanced Sealing Technology:Features a chrome-plated ball and spring-loaded PTFE or metal seats that ensure bubble-tight shut-off across the entire pressure range. The self-compensating seat design automatically adjusts for wear, maintaining sealing integrity through thousands of operating cycles.

 

5

Superior Material Integrity:Forged from ASTM A105 carbon steel or A182 F304/F316 stainless steel, the valve exhibits enhanced mechanical properties and corrosion resistance. Optional stellite hardening and specialized coatings are available for abrasive or corrosive services.

 

6

Reliable Operational Performance:Quarter-turn operation with blow-out proof stem design and anti-static functionality ensures safe, reliable performance. The low-friction stem bearing and optimized seat geometry provide smooth operation with minimal operating torque.

 

Typical Specifications

◆ Size Range: DN8 to DN100 (¼" to 4")

◆ Pressure Rating: PN40 to PN100 (Class 600 to 800)

◆ Temperature Range: -196°C to 400°C (with appropriate seat materials)

◆ Body Materials: ASTM A105, A182 F304/F316, A350 LF2

◆ End Connection: Socket Weld per ASME B16.11

◆ Seat Materials: PTFE, RPTFE, PEEK, Metal (Stellite)

◆ Stem Material: 17-4PH Stainless Steel

◆ Design Standards: ASME B16.34, API 608

◆ Test Standards: API 598, ISO 5208

O1CN012

 

O1CN013

 

Our Service and Support

We provide comprehensive support to ensure optimal valve performance throughout its service life:

◆ Welding Procedure Specifications: Detailed WPS including joint preparation, heat input control, and post-weld inspection requirements

◆ Technical Documentation: Complete dimensional data, material certifications, and pressure test reports

◆ Maintenance Support: Seal kits, stem assemblies, and specialized tools for in-service maintenance

◆ Engineering Consultation: Material selection guidance and application-specific technical support

◆ Warranty Coverage: 18-month warranty against manufacturing defects with extended service agreements available

 

O1CN014
O139711
O1CN011
 

FAQ

 

Q: What are the primary advantages of socket weld ends over other connection types?

A: Socket weld connections provide superior leak integrity, better alignment control, and higher mechanical strength compared to threaded connections, while offering a more compact configuration than flanged joints. The welded connection is permanent and maintenance-free, ideal for critical services.

Q: What welding qualifications and procedures are recommended for installation?

A: We recommend using certified welders following qualified procedures per ASME Section IX. Key considerations include proper joint preparation, controlled heat input, and purge gas protection for stainless steel valves to prevent oxidation of internal components.

Q: Can these valves be used in cryogenic service applications?

A: Yes, we offer specially designed cryogenic versions with extended bonnets, low-temperature seat materials, and materials certified for cryogenic service. These valves maintain reliable operation down to -196°C for LNG and other cryogenic applications.

Q: What maintenance is required after the valve is welded into the pipeline?

A: While the welded connections are permanent, the valve internals remain fully serviceable. Regular operational testing and periodic inspection of seating surfaces are recommended. Complete seal kits and replacement components are available for maintenance.

Q: Are these valves suitable for sour service (H2S) environments?

A: Absolutely. We provide NACE MR0175 compliant versions with appropriate material selections, including NACE-hardened trim components and full traceability documentation for sour service applications.

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