Project Description

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

rising stem resilient seat gate valve technical specification:

Valve Design: EN 1171/ BS5163/ EN 1074-1&2/ AWWA C509/C515

Face to Face: BS5163/ EN558-1 Series 13/ ANSI B16.10

Flange Drilling: EN 1092-2/ ISO 7005-2/ ANSI B16.1/ B16.42

Hydraulic Test: EN 12266/ ISO 5208/ AWWA C515/ C509

Shell Test Pressure: 24 bar/ 375PSI

Sealing Test Pressure: 17.6 bar/ 275PSI

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.

rising stem resilient seat gate valve material list

rising stem gate valve

Item No.

Part Name

Specification

1

Body

Ductile Iron EN-GJS-500-7

2

Wedge

Ductile Iron EN-GJS-500-7

3

Wedge Coating

NBR/ EPDM EN681-1

4

Wedge Nut

Copper Alloy

5

Stem

Stainless Steel X20 Cr13

6

O Ring Back Sealing

NBR/ EPDM

7

Bonnet Gasket

NBR/EPDM EN681-1

8

Bonnet

Ductile Iron EN-GJS-500-7

9

Packing Cork

Cooper Alloy

10

O-Ring

EPDM/ NBR

11

Packing O-Ring

EPDM/ NBR

12

Gland Flange

Ductile Iron EN-GJS-500-7

13

York

Ductile Iron EN-GJS-500-7

14

Stem Nut

Cooper Alloy

15

Hand Wheel

Ductile Iron EN-GJS-500-7

rising stem resilient gate valve

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