Active Member
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[China]
Address: No.3 Hangfa Road,Aviation Industrial Park,Gongjing District,Zigong City,Sichuan Province,P.R.China
Contact name:Chris
ZIGONG WEITE VALVE MFG CO., LTD |
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Electric Motor Natural Gas Fully Welded Ball Valve Pipeline Valves
Product Description
Fully Welded Ball Valve provide maximum strength with minimum weight and maximum resistance to pipeline
pressure and stress. The compact spherical design also eliminates body flanges, reducing overall size and
leakage paths. Fully welded ball valves (welded body ball valves) are ideal for buried applications to reduce
potential leak points and reduce potential flange fugitive emissions.
Fully welded ball valve with excellent performance and advantages can ensure the safe and reliable operation
of long-distance pipeline and city gas pipeline.
| Design standard: | API6D, ASME B16.34, BS5351, ISO17292,DIN | ||
| Face to Face: | ASME B16.10, API 6D | ||
| Actuator: | electrical actuator,pnenmatic actuator,penumatic-hydraulic actuator etc. | ||
| Nominal diameter: | 2” – 48” (DN 15-DN 1200) | ||
| Pressure : | CLASS 150 – CLASS 2500 (PN10- PN120) | ||
| Butt Welding: | ANSI B16.25,ASME B 31.8,ASME B31.4 | ||
Design Characteristic
Body Structure
Ball Locallization and The Way of Assembly Stem
Stem Sealing
Emergency Sealing
Double Block and Bleed (DBB) Function
DBB Function
When valve in fully open or closed position,the upstream and downstream seat blocks the fluid,so the sediment
in the cavity can be drained out,this structure have below function:
1. In-line inspection seat leakage
2. In working pressure, valve in full open or close position.Available to replace stem packing on line.
Open drain valve to bleed medium in cavity,it can reduce medium pressure on stem sealing ring,which
to extend the seal service life.
Weite Valve
Workshop
Packing
Shipping
