• Ductile iron valve ,gate valve System 1
  • Ductile iron valve ,gate valve System 2
  • Ductile iron valve ,gate valve System 3
Ductile iron valve ,gate valve

Ductile iron valve ,gate valve

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 PCS
Supply Capability:
1000 PCS/month

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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


Q:What's the difference between valves and valves without valves?
In that regard, some valves are one-way valves, only out of the can
Q:What is called protective valve, and other valves what is the difference?
Protection valve should be in the air defense valve, can be copper gate valve. (according to the specific use of civil air defense requirements, design institute does not count).2, while the protection valve should be a locking device with the valve, not the general valve can be replaced.
Q:How to carry out the valve strength test and air tightness test?
All the factory must go through the valve pressure test, strength test for 1.5 times the nominal pressure, closed at both ends of the valve import and export, fully open the valve test pressure for 1 - 5 minutes, see the specific situation, also called low pressure seal test seal test pressure seal test, 0.6MPa. Also 1.1 times the seal hydrostatic test, specific, you see, JB/T9092 standard, very detailed
Q:Tell me the exact address, or the phone number in the market. Where is the industrial zone (the valve) in Hefei? Please help, thank you
At the intersection of Mingguang Road and Shengli Road, the southwest side is all made of valves
Q:According to the original valve installed on it, but never demolished, I am afraid to force over, will not be broken? The old valve, that part of the remaining three tubes tight.
The new spool to buy off, installed in the old spool that. You don't have the same brand. You may not be able to load it. It's better to have the same brand
Q:Which valves are installed in a directional manner?
Depends on the specific valve is one-way seal or two-way seal?
Q:The total valve of my natural gas was closed by the attitude I tried. Now I can't open it. I need to use gas. Who knows how to drive it? What skills do I have? I'm talking about the main valve.
First of all, you have to determine the direction of the valve opening, usually homeopathy, it is off, the reverse is open. First: to determine the opening of the valve, are generally ball valve, screw 90 degrees on it. Second. At the top of your house, there is a button that can be pulled out. It's different from place to place. Some are pulled out half, and some are pulled out. Third: in the following there is a black disk like thing, commonly known as the gas sound core. This is the same as the second, pull out half or all, so that you can use gas, ha ha!
Q:Standard and specification for pressure test of valves
(11) when the valve with drive device is tested and its tightness is tested, the sealing test shall be carried out by using the driving device to close the valve. For manual drive units, seal test shall also be done with the actuating closing valve.(12) the by-pass valve installed on the main valve after the strength test and the sealing test. The strength and tightness test of the main valve is carried out. The main valve should be opened when the closing member is opened.(13) iron valve strength test, the application of Pratia tapping valve and valve cover, check whether there is any leakage.(14) the valve test, in addition to the provisions of the plug valve to allow sealing surface oiling, other valves are not allowed in the sealing surface of the oil test.(15) when the valve pressure test, the blind plate on the valve pressure should not be too large, so as to avoid deformation of the valve, affecting the test results (cast iron valve if pressed too tight, will be damaged).(16) after the valve test pressure, should promptly remove the water and clean the valve, should also be prepared for the test record.
Q:What does the whole copper valve mean?
Industrial oxygen pipes on the valve are all copper valve, hand wheel is not. The market had had 4 6 1 inch screw valve also has a lot of full copper. The tap also has all brass. The valve body and the inside are all copper.
Q:What do you mean by "P54" in the valve z962y-p54 100V?
Applicable temperature 540 degrees centigrade;Applicable temperature 540 degrees centigrade

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