kinds of Gate Valve in low price System 1

kinds of Gate Valve in low price

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 pc

Supply Capability:: 50000 pc/month

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Product Description:

Specifications

1.General design:DIN,BS,ANSI

2.Rising or Non-rising stem

3.Solid wedge disc

4.Clockwise closing direction

5.Bolt bonnet

Product Name:

gate valve

Technical Data

DN40-DN2000mm

Body: Cast Iron, Ductile Iron

Stem: Stainless Steel,Brass

Disc: Ductile Iron

Flange Connection:EN1092-2 PN10/PN16/PN25, ANSI B16.1 BS10 Table D/E,JIS10K/16K

Standard:DIN3352-F4/F5,BS5163,BS5150,BS3464,ANSI

Product Features

Bolt Bonnet

Replaceable O-ring

Low torque operation

Outside screw and yoke

Clockwise closing direction

Graphite packing

Seat rings are pressed into wedge and body.

Q:What are the working principles of the electric gate valve?: You see what type of electric valve, is integral or ordinary type, if the overall type Denso took power on the line, is generally 380V and 220V power supply, and then according to their own needs and then open the signal line, in place and closing in place and remote control line, valve position feedback signal 4~20ma over torque protection, fault signal. Ordinary type electric valve should be equipped with the control box, the motor is the true story and the inversion, and in general to a trip signal signal is normally open and normally closed, closed in place are normally open and normally closed two points according to their own needs wiring, three lines and then open and close control of the line of control there are also 4 lines to control some manufacturers, as well as the valve position, some three lines connected with the potentiometer, some installed valve position transmitter is connected with two lines, and over torque protection fault signal.

Q:What are the common standards for gate valves?: Is the gate valve opening and closing parts, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed, can not be adjusted and the throttle. The following common standards for Fujian Biaoguang valve for valve: design specification: JB/T 7746, API602 JB/T 7746, the length of the structure specification / thread socket factory test and inspection of JB/T1751/GB7306, ANSI: B16.11/B2.1: JB/T 9092, API598 pressure temperature: GB/T 9131, ANSI B16.34, MSS GB/T 12220 product ID: SP25 delivery specification: JB/T 7928

Q:What's the difference between a soft seal gate valve and a hard sealed gate valve?: It uses the elastic material of the gate, and uses the elastic material to produce the micro deformation compensation effect. It can achieve good sealing effect. Soft sealing gate valve has the advantages of light switch, reliable sealing, good elasticity memory and long service life.Hard sealing surface of the gate valve for cast iron or stainless steel, open and close resistance is small, no flow, but poor sealing performance.

Q:Why can't the pressure measuring point be set at the two ends of the gate valve when measuring the resistance loss of the gate valve?: the valve before the pressure measuring point, distance of valve straight pipe length is 5 times the diameter of the valve after the pressure valve, the distance is 10 times the diameter of straight pipe length.

Q:Does the tap belong to a stop valve or a gate valve?: Most faucets are stop valves,Part of the faucet is plug valve,Hot water nozzles are almost all plug valves.

Q:Why the valve can only be fully open and fully closed valve can adjust the flow?: Gate valve, stop valve are switching type valve, adjust the flow can not talk about, can only do so called throttle.You say "stop valve" or "translation" problem, in English, globe valve and valve word is often the same.

Q:What are the structural differences between parallel and wedge valves?: The structure of globe valve and gate valve. What does this article introduce first?What is parallel gate valve?The sealing cover is parallel to the vertical center line, so the sealing surfaces of the valve body and the gate are parallel to each other. This gate valve is the most common double gate plate, in order to shut down, so that the valve and gate two sealing surface contact closely asked, often used in two ram double sided thrust wedge block. Thus, when the valve is closed, the double side thrust block is contacted with the bottom of the valve body and is gradually stressed.

Q:What kind of gate valve is Z6CS-H102?: Z== valve type: gate valve6== pressure rating: 800LB, API602C== structure: bolt connection, valve cover, bolt connection gland, bright rod support typeS== connection form: socket welding, that is, SWH1== body material: A10502== inner material: seat sealing surface STL, gate sealing surface STL, valve stem 13Cr

Q:Is the gate valve flanged?: The most commonly used gate valves are threaded connections, flanged connections, and welded connections.Like the outer thread connection, the clamp connection, the card sleeve is seldom used.

Q:Notes on flat gate valves: internal structureThe 1 seat O ring seal and preload floating seat structure, so that import and export of two-way valve seal plate; and the structure of the normal valve opening and closing torque only 1/2, can easily open and close valves2. when fully open, the channel is smooth and straight, the flow resistance coefficient is extremely small, and there is no pressure loss. The pipeline can be cleaned through the hair bulb3 the packing structure with the ability of self sealing, without frequent adjustment, opening and closing very lightweight, and reliable seal, the stuffing box is arranged at the auxiliary seal oil into the structure, absolutely reliable sealing performance, thereby achieving zero leakage; solve the shortcomings of the general valve packing leakage of the most vulnerable4., when the flat gate valve is closed, it can automatically unload the inner cavity high pressure, and ensure the safe use5., fully enclosed structure, good protection performance, can adapt to all-weather requirements6., the valve seat sealing structure should be elastic, preload, upper and lower sealing seat at the same time sealed structure. The valve seat and the seal are always face to face sealed.The 7. seat has self-cleaning function and is free of direct airflow during valve opening or closing. The seat shall be made of lubricated, non wearing material.8. valve actuator failure will not affect the other parts of the valve, maintenance and replacement work can be carried out without removing the valve.9. yoke sleeve aluminum bronze yoke sleeve with pin type thrust bearing to minimize operation torque.10. stem - thread length until bracket; dowel and spot welding; stability.11. pressure seal - simple construction, with sectional retaining rings and silver plated low carbon steel gaskets, helps to remove and achieve the best bonnet seal.12. seat ring - welded seat ring is perpendicular to the flow channel and is easy to maintain.

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