Project Description

AS2638 resilient seat gate valve, which can be used in water supply and drainage project.

AS2638 resilient seat gate valve technical specification:

Valve Design: AS2638

Face to Face: AS2638

Flange Drilling: AS2129 Table E

Hydraulic Test: ISO 5208

Shell Test Pressure: 24 bar

Sealing Test Pressure: 17.6 bar

The main advantages of gate valve include:

1. The fluid resistance of the valve is small. Because the valve body of gate valve is straight-through type and the flow of the medium doesn’t change direction, the fluid resistance of it is small compared with other kinds of valves.

2. The sealing performance is better than that of other shut-off valve. The opening and closing of it is more conveniently.

3. The range of applications is more wider. In addition to steam, oil and other media, it can be used in medium containing granular solid and with a large viscosity. It can also be used as air-venting valve and low vacuum system valve.

4. Gate valve has dual flow directions. It’s not subject to the flow directions of the medium. Therefore, it is suitable for use in pipeline where the medium may change the flow direction. It is also easy to install.

resilient seat gate valve Material List

resilient seat gate valve with bonnet cap


Item No.Part NameSpecification
1BodyDuctile Iron AS 1831 500-7
2WedgeDuctile Iron AS 1831 500-7
3Wedge CoatingNBR/ EPDM EN681-1
4Wedge NutCopper Alloy
5StemStainless Steel X20 Cr13
6Bonnet GasketNBR/ EPDM EN681-1
7BonnetDuctile Iron AS 1831 500-7
8O Ring Back SealingEPDM/ NBR
9Stem WasherPTFE
12Stuffing BearingBrass
13Gland FlangeDuctile Iron AS 1831 500-7
14Dust GuardEPDM/ NBR
15Hand wheelDuctile Iron AS 1831 500-7
16Stem CapDuctile Iron AS 1831 500-7

AS2638 resilient gate valve

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