Quality Inspection for Reduced Bore Valve - Trunnion mounted Ball Valve – Nortech
Quality Inspection for Reduced Bore Valve - Trunnion mounted Ball Valve – Nortech Detail:
What’s Trunnion mounted ball valves?
The ball valve is a form of quarter-turn valve which uses a hollow, perforated and fixed/supported ball to control flow through it.
A trunnion mounted ball valve means that the ball is constrained by bearings and is only allowed to rotate, the majority of the hydraulic load is supported by the System constraints, resulting in low bearing pressure and no shaft fatigue.
Advantages of trunnion ball design is the lower operating torque, ease of operation, minimized seat wear (Stem/ball isolation prevents side loading and wear of downstream seats improving performance and service life), superior sealing performance at both high and low pressure (a separate spring mechanism and upstream line pressure is used as the sealing against the stationary ball for low pressure and high pressure applications).
The pipeline pressure drives the upstream seat against the stationary ball so that the line pressure forces the upstream seat onto the ball causing it to seal. The mechanical anchoring of the ball absorbs the thrust from the line pressure, preventing excess friction between the ball and seats, so even at full rated working pressure operating torque remains low. This is particularly advantageous when the ball valve is actuated because it reduces the size of the actuator and hence the overall costs of the valve actuation package. The trunnion is available for all sizes and for all pressure classes but they are mainly for large sizes and high pressure conditions
Main features of NORTECH Trunnion mounted ball valves
Trunnion Ball Valve is used to cut off or connect the media in various of Class150~Class2500. The valves made of different materials are suitable for various media such as water, steam, oil, liquefied gas, natural gas, coal gas, nitric acid, oxidizer, urea and etc.
The driving modes include manual operation and electric operation. The connection ends can be flange or butt welding.
Specifications of NORTECH Trunnion mounted ball valves
What is Trunnion Ball Valve ?
Trunnion Ball Valve is used to cut off or connect the media in various of Class150~Class2500. The valves made of different materials are suitable for various media such as water, steam, oil, liquefied gas, natural gas, coal gas, nitric acid, oxidizer, urea and etc.
The driving modes include manual operation and electric operation. The connection ends can be flange or butt welding.
Trunnion Ball Valve Technical Specifications
|
Nominal diameter |
2”-36”(DN50-DN900) |
|
Connection Type |
RF/BW/RTJ |
|
Design standard |
API 6D/ASME B16.34/API608/MSS SP-72 ball valve |
|
Body material |
Cast steel/Forged steel/Cast stainless steel/Forged stainless steel |
|
Ball material |
A105+ENP/F304/F316/F304L/F316L |
|
Seat material |
PTFE/PPL/NYLON/PEEK |
|
Working temperature |
Up to 120°C for PTFE |
|
|
Up to 250°C for PPL/PEEK |
|
|
Up to 80°C for NYLON |
|
Flange end |
ASME B16.5 RF/RTJ |
|
BW end |
ASME B 16.25 |
|
Face to face |
ASME B 16.10 |
|
Pressure temperaure |
ASME B 16.34 |
|
Fire safe&anti-static |
API 607/API 6FA |
|
Inspection standard |
API598/EN12266/ISO5208 |
|
Exposion proof |
ATEX |
|
Type of operation |
Manual gearbox/Pneumatic actuator/Electric actuator |
Our advantages of Trunnion Ball Valve
• ISO 5211 mounting pad compatible for various type of actuators;
• simple structure,reliable sealing and easy maintenance.
• anti-static and fire safe design.
• ATEX certification for explosion proof.
Product Show:
Application of NORTECH Trunnion mounted ball valves
This kind of Trunnion Ball Valve is widely utilized in the exploiting, refining and transporting system of oil, gas and mineral. It can be also utilized to produce chemical products, medicine; production system of hydroelectricity, thermal power and nuclear power; draining system,
Trunnion Ball Valve is used to cut off or connect the media in various of Class150~Class2500. The valves made of different materials are suitable for various media such as water, steam, oil, liquefied gas, natural gas, coal gas, nitric acid, oxidizer, urea and etc.
The driving modes include manual operation and electric operation. The connection ends can be flange or butt welding.
heating system and gas system in cities or industries.
Product detail pictures:
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So that you can finest fulfill client's demands, all of our operations are strictly performed in line with our motto "High Excellent, Competitive Price, Fast Service" for Quality Inspection for Reduced Bore Valve - Trunnion mounted Ball Valve – Nortech, The product will supply to all over the world, such as: Nigeria, Malta, South Korea, "Good quality, Good service " is always our tenet and credo. We take every effort to control the quality, package, labels etc and our QC will check every detail during producing and before shipment. We have been willing to establish long business relationship with all those who seek the high quality products and good service. We've got set up a wide sales network across European countries, North of America, South of America, Middle East, Africa, East Asia countries.Please contact us now, you will find our expert experience and high quality grades will contribute to your business.
By Mark from Malaysia - 2018.06.21 17:11
As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
By Nora from Australia - 2018.05.15 10:52
