Screwed & Socket Weld Ball Valve
Industrial ball valves with screwed ends and socket weld connections. 1/4" to 4" sizes. Class 800 to Class 1500. SS304, SS316, forged steel. Blowout-proof stem. Fire-safe design. Export worldwide.
Common Applications
Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Ductile Iron (ASTM A536 / EN-GJS-400-15) |
| Stem / Spindle | SS 410 / SS 420 |
| Seat / Trim | EPDM / NBR / Bronze |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | EN 1171 / AWWA C509 / BS 5163 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | PN16 / PN25 |
Testing Details & Standards
- Size: DN15 - DN100
- End Connection: Screwed end (BSP / NPT), Socket Weld
- Face to Face: MFG. Standard
- Design Standard: ASME B16.11, ASME B16.34, API 598, BS EN ISO 17292, ISO 5211
- Pressure Class: 150#, 300#
- Body Material: CF8 / CF8M / WCB / CF3M
- Pipe End Material: CF8 / CF8M / WCB / CF3M
- Ball Material: CF8 / CF8M
- Body Seal Material: PTFE / RPTFE / CFT / GFT / PEEK
- Seat Ring Material: PTFE / RPTFE / CFT / GFT / PEEK
- Fastener Material: SS304 / SS316
- Stem Seal Material: PTFE / RPTFE / CFT / GFT / PEEK
- Stem Material: SS304 / SS316 / SS410
- Gland Bush Material: SS304 / SS316 / SS410
- Gland Material: SS304 / SS316 / SS410
- Features: 3PC design twinseal ball valve. Full port ball valve. Blow out proof stem. Floating ball design. Hand Lever / Gear / Actuator Operated. Face to Face:- MFG standard. End Connection:- Screwed / Socket weld (ASME B16.11). Balls are precision machined and mirror finished for bubble-tight shut off with less operating torque. ISO 5211 top mounting pad available for easy pneumatic angle seat valves make actuator mounting.
- Diagram No: 32.1
- Note: All dimensions are approx.
Frequently Asked Questions
What is the difference between screwed and socket weld ends?
Screwed ends (NPT, BSP) use threaded connections suitable for low-pressure applications where disassembly may be required. Socket weld ends provide a smooth bore with the pipe inserted into the valve socket and fillet welded, providing permanent high-pressure connections with no bore restriction.
What pressure class do I need for my application?
Pressure class depends on your system pressure and temperature. Class 800 is common for oil and gas instrumentation. Class 1500/2000 is typical for high-pressure process applications. Our engineering team can recommend the appropriate class based on your specific operating conditions.
Are these valves fire-safe?
Yes, our socket weld and screwed ball valves feature fire-safe design per API 607. They utilize a graphite packing and fire-safe seat material that maintains stem sealing during and after fire exposure, preventing external leakage even when the primary soft seat is damaged.
What is a blowout-proof stem?
A blowout-proof stem features a stem shoulder that engages with the body, preventing the stem from being ejected by system pressure if the gland nut is removed. This is a critical safety feature required by API 608 and ensures operator safety during maintenance.