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Carbon Steel / Stainless Steel Flanged Reduced / Full Port Diversion Hole Slab Gate Valve

Carbon Steel / Stainless Steel Flanged Reduced / Full Port Diversion Hole Slab Gate Valve

Application Slab gate valve with diversion hole is used in natural gas, petroleum, chemical industry, environmental protection, urban pipelines, gas pipelines and other pipes and venting systems and vapor storage device. It is used as a hoist equipment. It is applicable to the long-distance...

Product Details


Application

Slab gate valve with diversion hole is used in natural gas, petroleum, chemical industry, environmental protection, urban pipelines, gas pipelines and other pipes and venting systems and vapor storage device. It is used as a hoist equipment. It is applicable to the long-distance pipeline of natural gas extraction and purification.

Features

The seat sealed structure should be flexible with preload force, and the upstream and downstream sealing seat should seal at the same time. Between the seat and seal materials is always face to face seal. Seat has self-cleaning function, and will not washed directly by the air in the process of the open or close of the valve. Seat should be made of materials with lubrication and anti-abrasion. The breakdown of the actuator will not affect other parts of the valve, and the repair and replacement can be done without disassemble the valve.

The whole structure features

Yokesleeve: aluminum bronze yokesleeve matched with needle thrust bearings, will minimize the operating torque.

Stem: the length of the screw is until to the bracket; pin and spot welding; it will have stability.

Pressure Seal: simple structure, configuration sub-buckles, and silver-plated low-carbon steel washers, will help to disassemble and achieve the best cap sealing.

Seat ring: welded seat ring perpendicular to the flow path, it is easy to maintain.

actuator: You can configure the electric, hydraulic or pneumatic actuator. Under DN300 configure the standard manual handwheel, and above DN350 configure helical gear operating mechanism.

Yoke: fully assembled yoke has passed anti-seismic test, it is easy to maintain and install actuator.

Gland: Two-piece of self-regulating gland, they are uesd to avoid pop-up.

Whole backseat: Hard, and has the longest service life.

Disc: a spring-loaded disc can self-regulate and reduce the torque requirements of the actuator.

Whole locking: the whole cast support stop device and the Position-Assembled support disc make the seat more stable and reliable.

Implement standards

design specification

face to face dimension

connected flange

test and inspection

pressure and temperature

identification

JB/T5298

JB/T5298

JB/79

JB/T5298

GB9131

GB/T12220

API6D

API6D

ANSI-16.5

API6D

ANSI B16.34

MSS SP-25

The main performance specifications

design grade

The test pressure at room temperature(MPa)

Suitable temperature ℃


Applicable medium

shell

left seal

封left seal

low pressure seal

“G” type

“D” type

conventional type

anti-sulfur type

basic type

nominal pressure PN(MPa)

1.6

2.4

1.76

1.76

0.6

-29~50

-45~21

-2~121

The medium of total content of H2S and CO2more than 500mg/m2

oil, gas, water,etc

2.5

3.75

2.75

2.75

0.6

4.0

6.0

4.4

4.4

0.6

6.4

9.6

7.04

7.04

0.6

Pound grade Lb

150

3.0

2.2

2.2

0.6

300

7.7

5.6

5.6

0.6

The materials of main parts and applicable scope


bonnet

WCB

WC6

A352-LCB

A351-CF8M

disc

2Cr13+ENP

20CrMoV+STL

ANSO410+ENP

ANSI316+ENP

stem

2Cr13

2Cr13

A182-A6a

A182-A316S

seat

25+PTFE

20CrMoV+STL

A105+PTFE

A182-F316+PTFE

packing

NBR/FPM

Flexible Graphite

PTFE+FPM

gasket

--

bolt

35

35CrMo

A193-B7M

A193-B8

applicable medium

water,oil,steam

team,oil

propane,ethylene

nitrose



 

KAITAI, with over 20 years experience, is one of the professional carbon steel / stainless steel flanged reduced / full port diversion hole slab gate valve manufacturers and suppliers in China. All of our good equipments are made by professionals using advanced equipment. Welcome to buy with us.

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