ZIGONG WEITE VALVE MFG CO., LTD
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8 Inch Class 150 WCB Trunnion Mounted Ball Valve Flange End
Product Description
The Trunnion Mounted ball valve adopts the advanced spring preloaded floating valve seat assembly,suitable for
Class150~Class2500 PN16~PN160 pipelines, used to cut off or connect the medium in the pipeline.
Trunnion Mounted Ball Valve Content
| Design standard | API6D | ||
| Pressure-temperature Rating | ASME B16.34 | ||
| Face to Face Dimensions | ASME B16.10 | ||
| Flange Type and Dimensions | ASME B16.5 | ||
| Inspection and Test | API 6D, API598 | ||
Design Feature
Upstream Seal Two-way Valve
Have two seats on both sides. Each seat has springs loaded and make seat insert contact the ball surface for sealing.
Therefore this type of valve is bi-directional sealing and Installation direction is not restricted.
Fire-Safe Design API 607/API 6FA
In case of accidental fire or abnormal heating that softens and burns the non-metallic valve seat, it is specially tested.
The broad-seat supported metal sealing surface can prevent internal leakage under the action of spring load.Meanwhile,
in the middle flange, the upper and lower parts of the adjusting stem will form metal surface contact, which can also
prevent upper and external leakage.
Stem and Seat Emergency Sealant Injection
The seat ring and the valve stem have a special grease injection valve. In case of the leakage,
the grease will be injected to the valve ball surface and stem room to create a temporary sealing.
Double Block and Bleed
The trapped cavity pressure can bleed out by vent fitting or drain plug when the valve is in
fully open or fully closed position. The fluid is intercepted by seats of up and down stream
side. So the stem packing or O-ring may be replaced under working pressure. Each seat works
independently assuring tight seal against ball on both upstream and downstream side.
8'' 150LB WCB Trunnion Mounted Ball Valve Details
About Company
Our company has passed API and TS certification.We mainly produces valves of ANSI, DIN, and other standards. Products are widely
used in water, oil, natural gas, petroleum, chemical, urban pipe network and other fields.
Workshop
Valves Display Area,Radial Drilling Lathe,Finish Machining Workshop
Pressure Test and Assembly Workshop,Pressure Test Area
Painting and Finished Products
Packaging
FAQ:
Q1: Are you a Manufacture or trading company?
A: We are a professional Manufacture factory, we have been in Valve field more than 15 years. Our factory
is located inZigong City, Sichuan Province,China.
Q2: Can you provide OEM and customized product?
A: Yes, we can.
Q3: Can you print our Logo on the valves?
Yes, we can totally produce products according to your special request, even manufacture it base on your drawing.