China Cast Steel Wedge Gate Valve Suppliers ...

LYV® is the Cast Steel Wedge Gate Valve manufacturers and suppliers in China who can wholesale gate valves. We can provide professional service and better price for you. If you interested in cast steel wedge gate valve products, feel free to contact with us. We follow the quality of rest assured that the price of conscience, dedicated service.

The company is the world’s best China Cast Steel Gate Valve supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

Cast steel wedge gate valve are on the most common types of valves on the market, which is widely used in various industries, for water, natural gas, oil, petro and petrochemical plants. It is a liner-motion valve that uses a typically flat closure element perpendicular to the process flow, which slides into the flow stream to provide shut off, to do an on-off function for the liquid and gas services.

Design & Testing International Standard:

Design Standard : API 600, ASME B16.34

Inspection & Testing Standard : API 598

Flange To Flange Length : ANSI B 16.10

End Connection : Flanged End to ANSI B 16.5, Butt Weld ends, Stock Weld ends.

Manufacturer Size and Pressure Range:

NPS 2” to 48 ” (for ANSI Class 150LB)

NPS 2” to 40” (for ANSI Class 300LB)

NPS 2” to 24” (for ANSI Class 600LB)

NPS 2” to 20” (for ANSI Class 900LB)

NPS 2” to 16” (for ANSI Class 1500LB)

NPS 2” to 12” (for ANSI Class 2500LB)

Construction Body: Outside screw and yoke(OS&Y)

Bonnet/Cover type: Bolted Bonnet (BB) / Pressurized Seal Bonnet (PSB)

Seat Type: Hardseal Metal Type

Stem Type: Ring Stem

Gasket: Spiral Wound Gasket

Flow Directional: Uni-Directional

Service Medium: Natural Gas, Oil, Water, gas, etc

Fugitive Emission: ISO 15848

Valve Operation: Handwheel / Worm-Gear / Motor Actuator

MOC (Bill of Material – BOM) :

Body &Bonnet: ASTM A 216 GR. WCB (Carbon steel)

: ASTM A352 LCB / LCC (Low temp. carbon steel)

: ASTM A217 WC1/ WC6/ WC9/ C5 (High temp. carbon steel)

: ASTM A 351 GR. CF 8 / CF 8M (SS 304 / SS 316) (Stainless Steel)

: ASTM A 351 GR. CF 3 / CF 3M (SS 304L / SS 316L) (Stainless Steel)

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: ASTM A351 Gr. CF8C

: ASTM A890 4A / 5A/ 6A (Duplex Stainless Steel)

Disc : ASTM A216 GR.WCB /

: ASTM A352 LCB / LCC

: ASTM A217 WC1/ WC6/ WC9/ C5

: ASTM A 351 GR. CF 8 / CF 8M (SS 304 / SS 316)

: ASTM A 351 GR. CF 3 / CF 3M (SS 304L / SS 316L)

: ASTM A351 Gr. CF8C

: ASTM A890 4A / 5A/ 6A

Stem : ASTM A182 F6a

:ASTM A182 F304 / F316 / F304L / F316L

:17/4 PH

: ASTM A182 F51/ F53/ F55

Seat Ring: : ASTM A105N / A105N

: ASTM A 182 F304 / F316

: ASTM A 182 F304L / F316L

: ASTM A 182 F347 : ASTM A182 F51/ F53 /F55

Gasket: SS Spiral Wound+ Graphite, or SS Spiral Wound + PTFE, or Reinforced PTFE

Gland Packing : Flexible Graphite /PTFE

What is a reduced bore ball valve?

A reduced bore ball valve is a type of ball valve that the valve’s inside bore diameter is smaller than the pipe diameter, while the valve’s flange dimension is still match with the pipe diameter. The working requirement is that is a turbulence and fluid flow rate are not major concerns and where buildup of particles is not likely to occur, to avoid valve blockage.

With a smaller insider diameter, the valve housing and ball size are also smaller, so that the reduce bore ball valve occupy a smaller volume, which make it consumes a smaller space during installation. What’s more, the material for a smaller housing and ball charge a lower material cost, to affects the final products cost, to reduce the whole cost of the pipeline system.

●Cast Gate Valve Construction and Function 
● Full Port Design 
● Bolt Bonnet, Out Side Screw And Yoke 
● Rising Stem & Non-Rising Handwheel 
● Renewable Seat 
"Cast Gate Valve produced by CEPAI is made of forged steel, and the sealing surface of valve seat can be overlaid with cemented carbide according to client requirements.For Cast Gate Valve ≤10"", separate threaded valve seat or welded valve seat can be used, and Cast Gate Valve ≥12""can only use welded valve seat structure.
When the housing material of the valve is stainless steel, Cast Gate Valve generally adopts the integral or hardalloy surfacing on the body before directly processing the seat. If required by users, the stainless steel Cast Gate Valve seat can also be a separate threaded seat or a welded seat." 
● Body and Bonnet connection & Gasket 
Cast Gate Valve produced by CEPAI adopts bolted bonnet structure and composite gasket and wound gasket structure when pressure Class150 ~ Class900.For pressure Class1500 ~ Class2500,the pressure self-sealing bonnet structure is adopted, and the metal ring gasket structure is used for the gasket. 
● Flexible Wedge & Fully Guided 
"The wedge disc design of Cast Gate Valve produced by CEPAI is Flexible wedge structure. When the valve is closed, the two sealing surfaces of the wedge disc are squeezed by the force of the actuator, which can better fit the sealing surface of the valve seat and achieve the sealing effect.

The Cast Gate Valve produced by CEPAI has a Fully Guided structure on the valve body, which can ensure that the wedge does not deviate from the center line during the switching process and providing better sealing." 
● Backseat Design 
Cast Gate Valve produced by CEPAI is designed with back sealing structure.Under normal circumstances, when the valve is in the full open position, the back sealing surface can provide a reliable sealing effect, so as to achieve the replacement of stem packing in line. 
● Forged T-Head Stem 
Cast Gate Valve produced by CEPAI, the valve stem is made of an integral forging process, and the valve stem and disc are connected by a T-shaped structure. The strength of the stem joint surface is greater than the strength of the T-threaded part of the stem, which meet the requirement of strength test. 
● Optional locking device 
Cast Gate Valve produced by CEPAI has designed a keyhole structure so that clients can lock the valve according to their needs to prevent misoperation. 

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