Zero Leakage Pipeline Valves

Zero Leakage Pipeline Valves

Trunnion-mounted metal-seated ball valves tested at working pressure for 1,200 operations, prove to offer TRUE ZERO Leakage!

Valve technology and materials used on our metal-to-metal seating include; carefully selected low permeability coatings, and advanced ball & seat geometries.

In-house tested with third party verification, our zero leakage valves have been proven to offer class leading performance even after 1200 operations.

Valve technology and materials used on our metal-to-metal seating include; carefully selected low permeability coatings, and advanced ball & seat geometries.

In-house tested with third party verification, our zero leakage valves have been proven to offer class leading performance even after 1200 operations.

Everything You Need for ZERO Leak Applications

The robust trunnion design ensures low operating torques, with ISO mounting pad suitable for gear operation or actuator mounting. Custom body and trim materials are available based on process application and project requirements. Oliver engineering teams from both Twinsafe and Hydcovalves have pioneered a range of new intelligent pipeline valves that ensure ZERO Seat Leakage on media such as Hydrogen, Methane, CCS and numerous other applications.

Valve size range available: 1″ up to 20″ (DN25 to DN500)

SPECIFICATIONS
Pipeline Valve Design (Options)
- Double Block & Bleed – API 6D / API 6A
- Single Isolate
- Single Isolate with DPE Seats
Seat Material
- Metal-to-Metal Seating
Pressure Class
- ASME Class 150 – 2500
- API 6A 3000, 5000, 10,000
Temperature Range
- -50℃ up to +350℃
End Connections
- Flanged
- Butt Weld
- Hub
Bore Size Range
- 1″ to 20″ (inch) – DN25 to DN500
Operation (Options)
- Manual Operation
- Actuated Operation – Electric / Pneumatic / Hydraulic
Certified UK Valve Manufacturer

Ask any question
Oliver Twinsafe has been manufacturing customised valve solutions for the Oil, Gas, LNG, Petro-chemical, Nuclear, and Mining industries since 1979. If you don’t see the required valve specification listed here, please ask a member of our team.
DESIGN FEATURES & QUALIFICATIONS
Design Features
- High integrity HVOF coating of ball and seats
- Single Isolate, DIB or DBB designs available
- Forged 1 piece compact body, 2 piece or 3 piece body designs
- Bi-directional sealing
- Suitable and proven for high-cycle operations (in house testing zero leakage over 1,200 cycles)
- Anti-static device
- Anti-Blow out stem
- Self-relieving seats
- ring and Lip Seal seals available
- Low fugitive emission packing available
- Weld overlay of full through bore or sealing areas available
- Manual or actuated operation (electric/pneumatic/hydraulic
Qualification & Testing
- 1,200 completed cycles at working pressure and remain Zero leakage
- Third Party Witnessed Qualification
- Shell Qualification Testing to MESC 77/300 – Shell Witnessed
- Firesafe Qualification Testing To ISO 10497, API 6FA And API 607
- Fugitive Emission Testing To ISO 15848
- Pressure Equipment Directive 2014/68/EU
- API 6A PR2 Annex F Qualification Testing – Independently Witnessed
Most Common Applications
- Upstream Oil & Gas
- Media With Solids
- High Pressure
- High Temperature
CERTIFICATION
BROCHURE
OLIVER HYDCOVALVES TECHNOLOGY
NEW GENERATION VALVE TECHNOLOGY by Oliver Hydcovalves
Oliver Hydcovalves is an industry-leading company that harnesses over forty years of technology, development and expertise. Designing and manufacturing precision valves for hydrogen and carbon capture applications. Hydcovalves is committed to delivering valve solutions as part of the global ambition to reduce carbon emissions.
- Dedicated UK Research & Development Centre
- Engineering Partnership programmes, collaboration with suppliers
- Work with key supplier partner DuPont for best-in-class materials
- Engineering graduates work alongside experienced engineers on new valve designs
- Complete in-house testing capabilties that mimic real-world application

SPECIFICATIONS
Pipeline Valve Design (Options)
- Double Block & Bleed – API 6D / API 6A
- Single Isolate
- Single Isolate with DPE Seats
Seat Material
- Metal-to-Metal Seating
Pressure Class
- ASME Class 150 – 2500
- API 6A 3000, 5000, 10,000
Temperature Range
- -50℃ up to +350℃
End Connections
- Flanged
- Butt Weld
- Hub
Bore Size Range
- 1″ to 20″ (inch) – DN25 to DN500
Operation (Options)
- Manual Operation
- Actuated Operation – Electric / Pneumatic / Hydraulic
Certified UK Valve Manufacturer

Ask any question
Oliver Twinsafe has been manufacturing customised valve solutions for the Oil, Gas, LNG, Petro-chemical, Nuclear, and Mining industries since 1979. If you don’t see the required valve specification listed here, please ask a member of our team.
DESIGN FEATURES & QUALIFICATIONS
Design Features
- High integrity HVOF coating of ball and seats
- Single Isolate, DIB or DBB designs available
- Forged 1 piece compact body, 2 piece or 3 piece body designs
- Bi-directional sealing
- Suitable and proven for high-cycle operations (in house testing zero leakage over 400 cycles)
- Anti-static device
- Anti-Blow out stem
- Self-relieving seats
- ring and Lip Seal seals available
- Low fugitive emission packing available
- Weld overlay of full through bore or sealing areas available
- Manual or actuated operation (electric/pneumatic/hydraulic
Qualification & Testing
- Third Party Witnessed Qualification
- Shell Qualification Testing to MESC 77/300 – Shell Witnessed
- Firesafe Qualification Testing To ISO 10497, API 6FA And API 607
- Fugitive Emission Testing To ISO 15848
- Pressure Equipment Directive 2014/68/EU
- API 6A PR2 Annex F Qualification Testing – Independently Witnessed
Most Common Applications
- Upstream Oil & Gas
- Media With Solids
- High Pressure
- High Temperature
CERTIFICATION
BROCHURE
OLIVER HYDCOVALVES TECHNOLOGY
NEW GENERATION VALVE TECHNOLOGY by Oliver Hydcovalves
Oliver Hydcovalves is an industry-leading company that harnesses over forty years of technology, development and expertise. Designing and manufacturing precision valves for hydrogen and carbon capture applications. Hydcovalves is committed to delivering valve solutions as part of the global ambition to reduce carbon emissions.
- Dedicated UK Research & Development Centre
- Engineering Partnership programmes, collaboration with suppliers
- Work with key supplier partner DuPont for best-in-class materials
- Engineering graduates work alongside experienced engineers on new valve designs
- Complete in-house testing capabilties that mimic real-world application

View Pipeline Valves

Explore More Pipeline Valves in our Range

Contact Us. Our dedicated projects team and technical sales engineers can help answer your questions about ZERO Leak applications, and calculate the best pipeline valve solution for you.

Dedicated Projects Team

Our highly experienced projects team are dedicated to handling large-scale projects around the world. Often, projects are technically challenging and have complex material requirements and configurations that need to work for Hydrogen and Carbon Capture applications. We invite you to talk to our team and find out how our customised solutions are delivered to others.

Richard Featherstone, Sales Manager

Dedicated Projects Team

Richard Featherstone, Sales Manager

Explore More Valves

Contact Us. Our dedicated projects team and technical sales engineers can help answer your questions about ZERO Leak applications, and calculate the best pipelin valve solution for you.

Zero Leakage Pipeline Valves

Zero Leakage Pipeline Valves

Trunnion-mounted metal-seated ball valves tested at working pressure for 1,200 operations, prove to offer TRUE ZERO Leakage!

Valve technology and materials used on our metal-to-metal seating include; carefully selected low permeability coatings, and advanced ball & seat geometries.

In-house tested with third party verification, our zero leakage valves have been proven to offer class leading performance even after 1200 operations.

Valve technology and materials used on our metal-to-metal seating include; carefully selected low permeability coatings, and advanced ball & seat geometries.

In-house tested with third party verification, our zero leakage valves have been proven to offer class leading performance even after 1200 operations.

Everything You Need for ZERO Leak Applications

Ask any question

Explore More Pipeline Valves in our Range

Contact Us. Our dedicated projects team and technical sales engineers can help answer your questions about ZERO Leak applications, and calculate the best pipeline valve solution for you.

Dedicated Projects Team

Dedicated Projects Team

Explore More Valves

Contact Us. Our dedicated projects team and technical sales engineers can help answer your questions about ZERO Leak applications, and calculate the best pipelin valve solution for you.

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