Ductile iron valve ,gate valve

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Tianjin
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TT OR LC
Min Order Qty:
100 PCS
Supply Capability:
1000 PCS/month

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Product Description:

Specifications

Ductile iron gate valve 
1.high quality made in China 
2.Factory directly supply 
3.Competitive price

gate valve product description:

1.gate valve product material list:

1 Body :Ductile Iron

2 Bonnet :Ductile Iron

3 Seal Retainer :NBR

4 Gate :Ductile Iron (EPDM Encapsulated) 
5 Spindle :Stainless Steel

6 Spindle Cap :Ductile Iron

7 Thrust Washer :brass
8 Body Gasket :NBR /EPDM 

9 Bonnet Gasket :EPDM

Additional content

elastic sealing flange coupling type valve(design)according to DIN3352-F4    
face to face length according to DIN3202-F4 or ISO 5752 14 Series   
flanged drilled (end flange)according to DIN2532/2533 or BS EN 1092   
valve body and valve cover of ductile cast iron   
wedge disc of ductile cast iron with EPDM(or NBR )   
stem of stainless steel(2cr13),thrust bearing of copper   
shaft sealing of NBR O-rings   
coated with epoxy(inside and outside electrostatic spraying with epoxy)with handwheel.

2.Gate valve features:

1) The check valves supplied are mainly used for preventing the water and steam medium from flowing backward

2) Material:

a) Valve body and bonnet: ductile iron ASTM-A-536, GGG500-7

b) Disc: grey iron/ bronze, grey iron or grey iron/ rubber 

3) Size: 50 - 600mm/ 2" - 24"

4) Pressure grade:PN10/PN16

5) Coating

a) Fusion-bonded epoxy 200-250 microns inside and outside .

b) Coating as per customers' requirement

3. Gate valve sample for free: you should pay for the freight charge for the samples

4. Gate vakve payment term:

a)30% TT upon placing order and 70% TT when the goods are finished but before shipment      or the payment can be 50% upon placing order,and balance 50%upon Copy B/L,.

 b) L/C or D/P


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Q:Pump, valve, these belong to the material?
Pumps, valves are electromechanical equipment, belonging to a class of hardware fittings, but not material!
Q:Who knows a door valve heating valve how to open?
The heating valve refers only to a radiator system accessories, is a type of valve, the valve commonly used heating system on the market is mainly divided into: gate valve, ball valve, safety valve, balance valve, globe valve, regulator valve, relief valve, pneumatic control valve.
Q:Valve pressure test
The standard is different, the test is not the same, what kind of valve you, a domestic valve only do stress testing, in fact, the pressure can generally be guaranteed, many are bad at high temperature or life testing above
Q:What is the choice of pneumatic valve or electric valve for ultrafiltration inlet control valve?
Pneumatic valve compared to the electric valve, the valve can be the same, rubber lined butterfly valve or other valves, pneumatic valve opening speed (Basic 1 second can be fully open), the price is lower than the electric valve. But there must be process air (4-6bar compressed air). According to my experience, if the scene has compressed air, it is recommended to use pneumatic valve, if there is no compressed air, it is recommended to use electric (electric valve expensive, open valve slow).
Q:What does the valve stroke mean?
The distance from one position to another. Usually in the first position of the cut position, the second position is put through the position. Unless the valve has 3 positions.[1] to determine the stroke of the valve is the valve and valve two, closing stroke of its opening height, the valve opening height to diameter of the valve is fully open, 1/3, so the opening height is part size below the path + gate is closed.[2] valve: valve (Famen) is a fluid conveying system control components, with a cut-off, regulation, diversion, to prevent reverse flow, voltage regulation, shunt or overflow, pressure relief and other functions. Valves used in fluid control systems, from the simplest stop valve to a very complex automatic control system used in a variety of valves, a wide range of varieties and specifications. Valves can be used to control air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. The valve according to the material is divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316), chrome molybdenum steel, chromium molybdenum vanadium steel valves, valve, dual phase steel valves, plastic valves, non-standard customized valve material etc..
Q:How do you calculate the flow of the valve?
Valve flow calculation value is very vague, pipe pressure, back pressure, medium viscosity, medium temperature, valve structure, and so on, will affect the calculated value.
Q:What is the term "Z41H-16C" on the line?
When Z41H-16C opens the valve, when the gate lift height is equal to 1:1 times the valve path, the passage of the fluid is completely unblocked, but at run time, this position is not monitored. In actual use, the top of the stem is used as a sign, i.e., the open position, as its fully open position. Temperature changes appear to consider locking phenomenon, usually open to the vertex position, and then rewind 1/2 1 circle, as a fully open valve position.
Q:How to identify a good or bad valve?
You can see what the material inside the valve ~ basically copper heart relatively durable, solid ~!
Q:What are the uses and differences of gate valves, butterfly valves, ball valves and other valves?
The use of the same difference, you can see the shape
Q:What courses in the University involve valves?
Principles of Chemical Engineering (basic courses in chemical engineering and Technology)You always have to consider the problem of the valve when you design the pipe

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