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G I Trunking

Metal Seated

The bonnet type Gate Valves have a revolving non-rising stem, provided with a functional thread which is inside the valve chamber.
During the operation, stem revolves in the stem nut which carries along a flexible wedge. Due to its design, low torque values are achieved which eases the revolving of the stem.
The stem is locked against axial movement by a bonnet nut threaded to the bonnet, and no axial movement occurs in the specified conditions.
The wedge is guided in the body in a precast groove and provides an undisturbed water flow when the valve is open.
The body and the wedge have pressed-in/ threaded sealing seat to have drip tight sealing when the valve is closed.
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Description

Description

Nominal Size 
DN40-DN1200
Nominal Pressure 
PN10-63
Face to Face 
EN558-1 Series 14-15-3
(DIN 3202 F4-F5-BS)
Accessories 
Handwheel
Cap Top
Extension Spindle
Gearbox
Electrical Actuator
Bypass Valve
Position Indicator
Chainwheel
Drain Plug
Jacking Screw
Wedge Guide
 
Body Material Options 
Ductile Iron
Carbon Steel
Stainless Steel
Nickel Aluminum Bronze
Flange Standards 
EN 1092/2
BS 4504
BS10E
ANSI

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