Bellows gate valve is open, the bellows is compressed, the adverse sealing pair of valve stem and valve cover limits stroke of valve stem to prevent that deformation of bellows exceeds its own limits and causes damage. 3. The valve stem of bellows gate valve adopts double seal structure of bellows and stuffing to guarantee no leakage sealing at valve stem. 4. The valve is particularly applicable to industrial pipeline for flammable, explosive, toxic, strong penetrability, nuclear radiation, nuclear power project and ship confined space and other special medium and severe conditions.

ETM FIG.B.445 API 602 Forged Steel Bellows Sealed Gate Valve
Application: Industry, powerstations, flue gas purification plant processing technology, gas supply, vapour facilities, recycling facilities vacuum facilities, hot water, heating technology, district heating thermal oil applications, general plant manufacturing, etc.

Bellows Sealed Gate Valve/Feature:
Stem with bellowseal,
Two plybellowseal
Secondary sealing,gland packing
None-rising handwheel
Non-rotation lock of stem
NPS & Class :
NPS 1/2 ~" 2" Class150LB~1500LB

Main Parameters :
Design and Manufacture :API 602,ASME B16.34,BS 5352
Face to Face Dimension :ASME B16.10,EN558(Threaded Ends and Socket Welded ends as Per Manufacture's Specification)
Flange Connection Dimension :ASME B16.5
BW Connection Dimension :ASME B16.25
Threaded Ends Dimension :ASME B1.20.1
Socket Welded Ends Dimension :ASME B16.11
Pressure-Temperature Ratings :ASME B16.34
Test and Inspection :API 598
Main Materials :A105,LF2,F5,F9,F11,F22,F304,F304L,F316,F321,F51
Bellow materials :SS304,SS316L,SS321,Hastelloy C276

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