Slab Gate Valve for Oilfield

slab gate valve with handwheel
 
Knife gate valve has features of compact structure and light weighted. V&C knife
gate valve is designed with lower operation torque, full bore, high Cv, sealing surface
self clean, short F-F dimension, installation space saving, and easy maintenance. It is
widely used in modern industrial, such as mining, power plant, city waste water disposing,
food and beverage, paper mill, pharmaceutical, and chemical industry etc. Upon request
valve can be offered with manual, pneumatic, electric or hydraulic actuated remote control
service.
 
Design Features:
1. Low torque, easy operation
2. Zero leakage packing and stuffing box design
3. No wear during shut off and open process
4. Full port, No begrime & No jam
5. Bar design guide blade to move smoothly
6. Stoper design ensure reliable sealing
7. To thoroughly tested and verified nuclear electrical conditions
8. Round shape design on both sides of the blade for enforcing body and
    lengthening packing life
PFFA Series Slab Gate Valve
 
·Full-bore design eliminates pressure drop and eddy effectively,and slows up erosion to valve from solid particle in fluid.                  
·It is metal sealed between bonnet and valve body,valve plate and valve seat,valve seat and valve body;
·Spray welded hard alloy on the surfaces of valve plate and valve seat with the characteristics of good wear resistance and corrosion resistance;
·Bonnet and valve steam are designed with back sealed construction,which is convention for renewing sealing ring of the valve rod under pressure;
·Seal grease injection valve is installed to one side of the bonnet;
·Working pressure:2,000PSI~20,000PSI
·Nominal diameter:2 1/16″~4 1/16″(52mm~103mm)
·Working medium: petroleum, natural gas, mud, gas containing H2S and CO2 
·Working temperature:-60ºC~121ºC(KU level)
·Material grade:AA,BB,CC,DD,EE,FF,(HH)
·Specification grade:PSL1~4
·Performance requirement:PR1~2  

PFF Series Slab Valve

·Full-bore design eliminates pressure drop and eddy effectively,and slows up erosion to valve from solid particle in fluid.                  
·It is metal sealed between bonnet and valve body,valve plate and valve seat,valve seat and valve body;
·Spray welded hard alloy on the surfaces of valve plate and valve seat with the characteristics of good wear resistance and corrosion resistance;
·Bonnet and valve steam are designed with back sealed construction,which is convention for renewing sealing ring of the valve rod under pressure;
·Seal grease injection valve is installed to one side of the bonnet in order to supply grease and improve sealing performance and lubricity of valve plate and valve seat;
· Equipped with balance guide rod,which plays a part in keeping the valve upright to reduce operating torque;
·Working pressure:2,000PSI~20,000PSI
·Nominal diameter:2 1/16″~4 1/16″(52mm~103mm)
·Working medium: petroleum, natural gas, mud, gas containing H2S and CO2   
·Working temperature:-60ºC~121ºC(KU level)
·Material grade:AA,BB,CC,DD,EE,FF,(HH)
·Specification grade:PSL1~4
·Performance requirement:PR1~2

 Check Valve

This product is designed and manufactured with the requirement of API Spec 6A(Edition 20), meanwhile can be compatible and used interchangeably with domestic and overseas products meeting API Spec 6A standard.
·Working medium flows in one direcion
·Working pressure:2,000PSI~20,000PSI
·Nominal diameter:2 1/16″~4 1/16″(52mm~103mm)
·Working medium: petroleum, natural gas, mud, gas containing H2S and CO2 
·Working temperature:-60ºC~121ºC(KU level)
·Material grade:AA,BB,CC,DD,EE,FF,(HH)
·Specification grade:PSL1~4
·Performance requirement:PR1~2

Split gate valves (PFK manual gate valves) are in full compliance with API 6A & ISO 10423, and are available in flanged end connections from 2-1/16" bore to 4-1/16" bore, and in threaded end connections from 2-1/16" to 4-1/16", pressure ratings 3000 and 5000 psi.

Features:

1 .The split gate creates a positive mechanical bi-directional seal across the seats which does not depend on line pressure on either the upstream or downstream side. At the end of closing stroke the gate contacts the bottom of the valve. With continued rotation of the stem by tightening the hand-wheel, the gate segments expand against the seats creating a positive bi- directional seal.

 2. The seats are fixed into the body to prevent high pressure seat float and have a seat insert for positive sealing. Metal to metal seating is available upon request.

 3.Metal-to-metal sealing between body and bonnet interface, and seat/ body interface are stable and environmentally resistant.

 4.The stem packing is re-energizable with the valve in line and under pressure using the injectable packing fitting. The valve is also equipped with two body fittings for easy draining and lubrication.

 This split gate valve (PFK manual gate valves) has a preferred flow direction to assure low torque operation which is marked on the outside of the valve. Valve operating temperatures to 650 degres F are available.