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Cast Steel Gate Valves

Category: Gate Valves
Product Line: Cast Steel Gate Valves

China cast steel gate valve manufacturers, suppliers, wholesale,factory,low price, high quality, cheap,OEM service, in stock, stockist
Description:
China Cast Steel Gate Valve manufacturer-Relia® Valve, Cast Steel Gate Valves, RF Ends, manufactured for Oman Valve Supplier at Cheap price June, 2015.

 

 

Cast Steel Gate Valves Features

• Flexible Wedge Disc(Solid Wedge On Request)
• Welded Seat/Threaded Seat (Renewable Seat)
• OS & Y- Outside Screw and Yoke
• Bolted Bonnet, Rising Stem, Non Rrising Handwheel
Option: By Pass, Locking Device, Chain wheel

 

Cast Steel Gate Valves Features
• Design - API 600/ASME B16.34
• Face to Face - ASME B16.10
• End to End - ASME B16.10
• BW End - ASME B16.25
• Test - API 598
• Special - NACE MR-01-75

 

Cast Steel Gate Valves Drawing

China cast steel gate valve

 

Cast Steel Gate Valves Disc Types.

welded seat drawing of cast steel gate valves threaded seat drawing of cast steel gate valves

 

Cast Steel Gate Valves Disc Types.

H-type flexible single wedge disc drawing of cast steel gate valves Solid Wedge Disc drawing of Cast Steel Gate Valves Wedge Double Gate Disc of cast steel gate valves

 

Cast Steel Gate Valves Stem Sealing

PACKING - Flexible graphite is used for packing material braided graphite PTFE and other combined packing material is available unpon request.

LANTERN RING - Lantern Ring and packing lubricated structure is available upon request.

packing and lantern ring drawing

 

Belleville Spring Loaded Packing Impacting System

Our company can also provide Gate and Globe valve with Belleville Spring loaded packing impacting system and it will provide a constant compression over a long period and will enhance the durability and reliability of the packing seal.

 

Belleville Spring Loaded Packing Impacting System

 

Cast Steel Gate Valves Body & Bonnet Connection

 Body and bonnet are connected by bolted flange, using different types of sealing gaskets of different materials according to different pressure rating and service medium. Under special circumstances, our products may be made to middle flange sealing gasket of special types and materials if requested by users. 

body bonnet connection for cast steel gate valves

 

Design Features of Cast Steel Gate Valves

A. The design of thrust bearing makes valve opened easily and flexibly.

B.Top-mounted stem nut can prevent stem and disc from falling off when valve is at 'open' position and handwheel is taken off.

C. Packing uses flexible graphite for depen-dable sealing performance. If requested by users, packing spacer ring and greasing mechanism can be available.

D. Back seal design to ensure dependable packing and sealing when valve is fully opened.(Replacement of packing under pressure is not recommended).

E. Lift stem, with stem and disc connected by T-slot, and stem T head integrally forged to ensure sufficient strength of joint.

 

Material List of Cast Steel Gate Valves

No.

Part Name

Carbon Steel

Stainless Steel

Low Temperature
Steel

1

Body

ASTM A216 GR WCB

ASTM A351 GR CF8

ASTM A352 GR LCB

2

Wedge

ASTM A216 GR WCB

ASTM A351 GR CF8

ASTM A352 GR LCB

3

Seat

ASTM A105

/

ASTM A182 GR F304

4

Gasket

Soft Graphite + Ss304

Soft Graphite + Ss304

Soft Graphite + Ss304

5

Nut

ASTM A194 GR 2H

ASTM A194 GR B8

ASTM A194 GR B8

6

Stud

ASTM A193 GR B7

ASTM A193 GR 8

ASTM A193 GR 8

7

Back Seat

ASTM A182 GR F6a

ASTM A182 GR F304

ASTM A182 GR F304

8

Packing

Soft Graphite

Soft Graphite

Soft Graphite

9

Bonnet

ASTM A216 GR WCB

ASTM A351 GR CF8

ASTM A352 GR LCB

10

Pin

ASTM A194 GR 2H

ASTM A276 TYPE 304

ASTM A276 TYPE 304

11

Packing Bushing

ASTM A182 GR F6a

ASTM A182 GR F304

ASTM A182 GR F304

12

Gland

ASTM A216 GR WCB

ASTM A351 GR CF8

ASTM A352 GR LCB

13

Eyebolt

ASTM A193 GR B7

ASTM A193 GR B8

ASTM A194 GR B8

14

Eyebolt Nut

ASTM A194 GR 2H

ASTM A193 GR 8

ASTM A193 GR 8

15

Yoke

ASTM A216 GR WCB

ASTM A351 GR CF8

ASTM A352 GR LCB

16

Stem

ASTM A276 TYPE 410

ASTM A276 TYPE 304

ASTM A276 TYPE 304

17

Stem Nut

ASTM B148
UNS C95600

ASTM B148
UNS C95600

ASTM B148
UNS C95600

18

 Bearing

/

/

/

19

Grease cup

COPPER ALLOY

COPPER ALLOY

COPPER ALLOY

20

Stem Nut Retainer

ASTM A108 GR 1020

ASTM A182 GR F304

ASTM A182 GR F304

21

Handwheel

ASTM A197

ASTM A197

ASTM A197

22

Handwheel Nut

ASTM A108 GR 1020

ASTM A182 GR F304

ASTM A182 GR F304

 

Remarks:
1. Select different materials for different working temperature and media.
Body Material: Carbon Steel/Stainless Steel/Alloy Steel (Cast Steel) - WCB, WC6, LCB, CF8, CF8M, CF3, CF3M, CF8C
2. Trim Material - API 600 Trim number 1 to 17


Cast Steel Gate Valves Disc Introduction
H-type Flexible Single Wedge
H-type flexible single wedge can produce micro elastic deformation to compensate the deviation arising during the processing of sealing face angle, providing sound adaptability to deformation of valve body, ensuring the dependability of seal and making valve disc away from the problem of being difficult to be opened due to overload fastening.   

Solid Wedge
Solid wedge takes a simple structure. It requires high precision of sealing face angle, making machining and repair difficult, and can be easily wedged under temperature changes.

Wedge Double Gate Disc
Low requirement on precision of wedge angle, easily sealed, no scratch upon temperature changes, easy maintenance after sealing face is damaged, complicated structure, not applicable for medium of high viscosity and containing solid impurities, often used for power station valves.

 

Cast Steel Gate Seat Ring Types
The structure of seat ring may be designed to the types below for options.
1.With independant seat ring in body, type of connection:
Threaded
Welded
2.Sealing face material directly built-up welded on valve body.
3.For stainless steel gate valves, generally, seat sealing face is directlyprocessed and formed on valve body.

 

Cast Steel Gate Valves Dimension & Weight

Cast Steel Gate Valves Class 150

Cast Steel Gate Valves Class 300

Cast Steel Gate Valves Class 600

Cast Steel Gate Valves Class 900

Cast Steel Gate Valves Class 1500

 

Products Related to Cast Steel Gate Valves

Forged Steel Gate Valves

Stainless Steel Gate Valves

DIN Gate Valves

 

 

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