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Stainless steel gate valve

PRODUCTS > Gate valve > Stainless steel gate valve

Stainless steel gate valve

Product model: Z41W
Nominal diameter: NPS 2"~48", DN50~1200mm
Pressure range: CL150 ~ 2500Lb, PN10~420MPa
Operating temperature: -29℃~+600℃
Main material: stainless steel
Applications: tap water, sewage, building, petroleum, chemical, food, medicine, light industry, electric power, ship, metallurgy, energy system, etc.
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Screw gate valve main material in American Standard:

NO.NameMaterial
1BODYCF8MCF8WCB
2DISCCF8MCF8WCB
3STEMSUS304
4GASKETGraphite
5NUTA194-8
6BOLT A193-B8
7CAPCF8MCF8WCB
8SEATSUS304
9STEM PACKINGGraphite
10HINGE PINSUS304
11 EYE BOLT8A193-B
12NUTA194-8
13NUTA194-8
14BOLTA193-B8
15STANDCF8MCF8WCB
16STEM NUT  SUS304
17NIPPLE        SUS304
18BEARING CAP PLASTIC
19HANDLE WHEEL   QT400-18
20NUT        A194-8


[Standard parameter]

Design standardAPI 600、API6D、ASME B16.34、GB/T 12234
Structural lengthASME B16.10、API6D、GB/T 12221
Connection standardASME B16.5、ASME B16.47、GB/T 9113、JB/T 79、HG/T 20592
Pressure testAPI 598、GB/T 13927、JB/T 9092
Pressure temperature ratingASME B16.34 、GB/T 12224


[Valve features]

1, the gate has two sealing surfaces, the sealing surface to form a wedge, wedge angle varies with valve parameters, usually 5 degrees.
2, wedge gate valve sealing principle is combined by two on the two upper wedge sealing surface and sealing surface of the valve body wedging, thereby sealing performance.
3, wedge gate valve according to the stem drive gate opening and closing different ways, can be divided into bright rod gate valve (lift rod gate valve) and dark rod gate valve (rotary rod gate valve).
4, wedge gate valve in accordance with the different forms of the gate structure, can be divided into elastic gate valve and rigid gate valve.
5, the valve body for casting molding, valve body and valve cover with bolt connection, the middle flange using spiral gasket seal, the customer has special requirements can also be used metal ring connection.
6, the channel is smooth, the flow coefficient is small. The sealing surface is eroded and eroded by medium.
7, The sealing surface is made of alloy steel or hard alloy. It has good abrasion resistance and scratch resistance.
8, flexible graphite packing, reliable sealing, easy and flexible operation.
9, medium flow unrestricted, no disturb, do not reduce pressure.


[Adaptive condition]
Stainless steel valve for the nominal pressure of PN1.6 ~ 16.0MPa, -29 pipeline working temperature less than 550 DEG C, hydraulic oil and chemical industry, thermal power plants of various systems, cut off or connected piping media.


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