Gate valves are primarily designed for on-off services when a straight-line flow of fluid and minimum restriction is desired. The closure member of gate valves either stops or allows flow through the valve and acts somewhat like the opening or closing of a gate and is called, appropriately, the gate valve.
The gate is also shown as a wedge, due to the shape is resembles. When the valve is open, the closure member is fully drawn up into the valve, leaving a complete opening for the flow stream. Therefore, there is little pressure drop or flow restriction through the valve. Gate valves are used in many industrial applications including the oil and gas industry, pharmaceuticals, manufacturing, automotive, and marine. Gate valves are not suitable for throttling purposes.
Belfast Controls Equipment Trading LLC is the official distributor and stockiest for Bonney Forge Valves in U.A.E market, and we stock Forged Gate Valves, Globe Valves, Check Valves, Ball Valves in Dubai
Applicable standard range
SIZE : FROM NPS 1/2 TO NPS 3 or FROM DN 15 TO DN 80
CLASS : FROM ASME 150 TO ASME 4500
Design : API 602 , ISO 15761, ASME B16.34
Inspection & testing : API 598
Marking : MSS SP-25
Rating : ASME B16.34
Fugitive emission : API 624 – ISO 15848
Applicable end finishes
Face to face : ASME B16.10
End to end : Manufacturer standard or ASME B16.10
Socket weld : ASME B16.11
Screwed ends (NPT) : ASME B1.20.1
Flanged ends : ASME B16.5
Butt welding ends : ASME B16.25
1).Standard construction of body-bonnet connections are bolted bonnet or welded bonnet type.
2).Full die forged structure for all pressure containing parts.
3).Flanged valves are provided with flanges integral with the body forgings.
4).Standard gasket design for bolted-bonnet valves is spiral wound type up to class ASME 1500.
Ring Joint gaskets are standard for ASME 2500 and above. SPW/RJ are available on request for all pressure classes as option.
5).High quality packing ( acc.to API 622 ) for reliable tightness and low emission performance in fully compliance with API 624.
6).Low wedge-seat friction coefficient for reliable sealing & long service life.
7).Best-in-Class CV values.
8).Outside Screw and Yoke (OS&Y).
9).Low operation torque design.
10).Self aligning two piece packing gland.
11).Fully guided wedge for wear reduction of seating surfaces.