Ball Valves
Ball Valves
Ball Valves from John Clark Valves
At John Clark Valves Ltd, we supply a full range of floating and trunnion-mounted ball valves designed for performance, safety, and reliability across demanding industrial environments. Our ball valve solutions meet international standards including BS 5351, EN ISO 17292, and API 6D, ensuring long-term integrity and dependable operation in applications such as oil and gas, petrochemical, and power generation.
With extensive stock and access to multiple material grades – from carbon steel and stainless steel to duplex and alloy steels – we offer manual and actuated options to suit every specification. Each valve is precision-tested to API 598 and EN 12266, with optional fire-safe, cryogenic, and ATEX-certified configurations available.
Whether you require floating ball valves for general process duties or trunnion-mounted designs for high-pressure applications, we provide tailored, fully certified valve packages with rapid supply times.
Contact our team today to discuss your ball valve requirements or request a quote for immediate delivery.
Floating Ball Valves
Full range of Floating Ball Valves to BS 5351 / EN ISO 17292
- Size range ½” to 12”
- Full and reduced bore
- Up to ANSI Class 2500
- Carbon Steel, Low Temp Carbon Steel, and Stainless Steel
- Other material grades including Alloy and Duplex Steels upon request
- Additional Testing RT, MT, DP, PMI Ect and Special Metallurgy available
- Firesafe certification to API 607 / ISO 10497 / BS 6755 Pt. 2
| Floating Ball Valves ANSI Ratings: | |||||
| 150LB | 300LB | 600LB | 900LB | 1500LB | 2500LB |
| ½” – 12″ | ½” – 12″ | ½” – 6″ | ½” – 2″ | ½” – 2″ | ½” – 2″ |
| Materials: | WCB, LCB, LCC, WC6, WC9, C5, C12, CF8, CF3, CF8M, CF3M, CN7M, CF8C, A890-4A, A890-5A, A890-6A, A105N, LF2, F1, F5, F9, F11, F22, F44, F51, F53, F55, 304/L, 316/L, 321, 347, Monel, Inconel, Hastelloy – NACE MR-01-75.(Latest Revision) | ||||
| Design: | BS5351 / EN ISO 17292 / API608 Firesafe Certified to API607/EN ISO 10497 SIL 3 Rated – for functional safety Directive 94/9/EC for Explosive atmospheres (ATEX) Pressure equipment directive 97/23/EC (PED) |
||||
| Testing: | API 598 / EN 12266-I | ||||
| Testing Options: | Threaded, Socket Weld, Flanged, Butt weld, Full and Reduced Bore | ||||
Trunnion Ball Valves
Full range of Trunnion Mounted Ball Valves to API 6D / EN ISO 17292
- Size range ½” to 60”
- Full and reduced bore
- Up to ANSI Class 2500, API 6A Classes 2000 to 20000
- Carbon Steel, Low Temp Carbon Steel, and Stainless Steel
- Other material grades including Alloy and Duplex Steels upon request
- Additional Testing RT, MT, DP, PMI Ect and Special Metallurgy available
- Firesafe certification to API 607 / ISO 10497 / BS 6755 Pt. 2
- Top Entry Ball Valves, Twin Ball DB&B Valves, HIPPS Ball Valves, Cryogenic Ball Valves, Subsea Ball Valves
| Trunnion Mounted Ball Valves ANSI Ratings: | |||||
| 150LB | 300LB | 600LB | 900LB | 1500LB | 2500LB |
| 1″ – 48″ | 1″ – 42″ | 1″ – 42″ | 1″ – 36″ | 1″ – 30″ | 1″ – 20″ |
| Materials: | WCB, LCB, LCC, WC6, WC9, C5, C12, CF8, CF3, CF8M, CF3M, CN7M, CF8C, A890-4A, A890-5A, A890-6A, A105N, LF2, F1, F5, F9, F11, F22, F44, F51, F53, F55, 304/L, 316/L, 321, 347, Monel, Inconel, Hastelloy – NACE MR-01-75.(Latest Revision) | ||||
| Design: | API6D Firesafe Certified to API607/EN ISO 10497 SIL 3 Rated – for functional safety Directive 94/9/EC for Explosive atmospheres (ATEX) Pressure equipment directive 97/23/EC (PED) |
||||
| Testing: | API 6D / API 598 / EN 12266-4 | ||||
| Additional Testing: | Fugitive emission test to ISO 15848 or other Cryogenic test down to minus 196° C Strain gauge test Cavity relief test Paint dry film thickness check Torque test |
||||
| DNT Testing: | Radiographic examination (RT), X-Ray or Gamma-ray Magnetic particle examination (MT) Ultrasonic examination (UT) Dye penetrant examination (DP) Positive material identification (PMI) Hardness test |
||||
| Design Options: | Flanged, Butt weld, Full and Reduced Bore | ||||