Oliver Twinsafe Ltd offers an established range of Double Block and Bleed (DBB) large bore pipeline valves engineered to minimise space and weight, effectively reduce potential leak paths and reduce maintenance requirements on both new and existing pipelines. These valves offer a single pipeline valve solution for companies operating in the Oil, Gas and Petrochemical industries worldwide. From 1” to 18” ball sizes, soft seated and metal seated to leak rate A and to API / ASME standards.
Recognised worldwide for superior quality and precision engineering, Oliver Twinsafe Ltd are renowned for reliability and consistent performance. With a wide global presence, our offices are located in all major oil and gas countries. We continuously work with existing and new clients to develop custom valve solutions of all sizes. Our companies adopt a technical project approach, where necessary, to ensure that we can develop valves that adhere to the strictest quality and safety guidelines while fitting into our client’s existing project plans. To date, Oliver Twinsafe Ltd has worked alongside some of the largest international Oil, Gas and Petrochemical projects in the world.
COMPACT BALL VALVES
DESCRIPTION
Oliver Twinsafe provides Compact Style Ball Valves that are designed to provide considerable space and weight savings when compared to a traditional flanged end ball valve. Thanks to our high-integrity design, we have supplied valve solutions to global customers for many years, custom-built to their individual requirements. Compact Ball valves have proven their worth in many applications.
SPECIFICATIONS
>> Design Standards: API6D Standard, ASME VIII DIV2, NACE MR-01-75
>> End Connections: Buttweld profile to ASME B16.25
>> Operator: ISO 5211 F10 interface for actuator.
>> Body and Trim Material: Alloy Steel, Stainless Steel, Duplex Steel or Nickel Alloys.
>> Seat Insert Material: PEEK.
>> Stem Material: Stainless Steel, Duplex Steel or Nickel Alloys.
>> Stem Seal Materials: PTFE lip seal with elgiloy spring.
>> Fire Safe Seals Material: Graphite.
>> Body Seal Materials: FKM or HNBR O-rings with PTFE back-up rings.
>> Split Ring Material: AISI 4130 alloy steel Xylan coated.
>> Working Temperature: -50 to +400 deg F (-46 to +200 deg C).
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TRUNNION BALL VALVE DBB FLANGED 3
DESCRIPTION
Our Flanged Style Double Block & Bleed Valves are designed with a bolted 3 piece body and conventional through bolting flanged connections. The design reduces potential leak paths and allows weight and space savings when compared to conventional piping methods. Available in both full and reduced bore sizes.
SPECIFICATIONS
Our Flanged Style Double Block & Bleed Valves are designed with a bolted 3 piece body and conventional through bolting flanged connections. The design reduces potential leak paths and allows weight and space savings when compared to conventional piping methods. Available in both full and reduced bore sizes.
FLOATING BALL VALVES
DESCRIPTION
Our Flanged Style Double Block & Bleed Valves are available in both two and three piece body designs and contain three valves in one single unit – thus reducing weight and saving space across the installation. The two piece design is available in Oliver standard lengths up to ASME Class 300 and in accordance with ASME B16.10 lengths for ASME Class 600 and above. For the three piece design, all valves are have Oliver shortest overall length. Various other bleed valve options are available and we can work with our customers to adopt a technical project focused approach to ensure complete compatibility.
SPECIFICATIONS
>> Floating Ball Valves DBB Flanged 2/3 Piece Design Specifications:
>> Design: ASME B16.34, API 6D, ASME VIII, ASME B16.5
>> Firesafe Standards: API 607, API6FA, ISO 10497
>> Pressure Rating : ASME Class 150 to 2500, API 6A up to 5,000 API
>> Seat Materials: Soft Seats: PEEK, PTFE & Metal Seats: Tungsten Carbide and Chrome Carbide
>> Temperature Range: -50 deg c to 240 deg C
DBB PIPELINE BALL VALVES
DESCRIPTION
Modular Double Block and Bleed valves from Oliver Twinsafe are designed to offer one valve solution, available in most sizes to fit in the same space as a single ball valve or with the shortest possible face-to-face dimension. This compact design saves weight and space and reduces costly installation charges, whilst providing true double isolation for maximum safety and reduced process problems due to valve leakage.
SPECIFICATIONS
>> Design Standards: ASME B16.34, API 6D, ASME VIII, ASME B16.5
>>Firesafe Standards: API 607, API6FA, ISO 10497
>>Optional Features: Seat and Stem Injection Points; Ball Cavity Drain and Vent Ports; Double Piston Effect (DPE) Seats; PTFE Lip Seals
>>Pressure Rating: ASME Class 150 to 2500, API 6A up to 10,000 API
>>Soft Seats: Devlon, PEEK, PTFE & Metal Seats: Tungsten Carbide and Chrome Carbide
>>Temperature Range: -50 deg c to 200 deg C, high temperature option up to 315 deg C available