CNBM Ductile iron BS5163 gate valve 12''

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Product Description:

Product Description:

1.standard: DIN/BS/ISO

2.port size: DN32-700mm

3.function:

   This pilot-operated pressure reducing valve is professionally used to resolve the domestic water and fire-fighting problems in high-rise buildings, and it can completely replace the water tank.

4.main material list:

body/cover

ductile iron/cast iron

tubes/pilot valve

ss/brass

stem/spring

ss

O-ring/gasket

NBR/EPDM

seat

brass

bolts/washer

ss

5. connection: flange  

6.PN 1.0/1.6 /2.5Mpa

7.coating: epoxy painting

8.adavantages:

A. strictly designed accordingto the cybernetics of hydraulic principles;

B.   working stablly and reliablly with big flow passage;

C.   valve clack opens quickly and close slowly without water hammer shock because of the adjustable closing time;

D.   with good sealability and long span,etc.

Company Information:

   Allwin Pipe Fittings Co.,Ltd is a private enterprise specialized in exporting various kinds of pipes, pipe fittings, couplings and adaptors, valves, man-hole covers and gratings, fire hydrants,and strainers,etc.(mainly ductile iron&cast iron)

   We can supply all above products with different standards and specifications.  Our products have been wdely exported to many places in the world, such as Europe, Southeast Asia, USA, Middle East, African countries, China Hongkong, and Taiwan,etc.

   We promise  that you can get the wanted products with best quality in the most competitive price and the most satisfied services.

Packing&Shipping:

packaging: standard wooden cases with bubble plastic bags for each item or as per your requirements

delivery detail: 25-30 days

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Remaining: 4000 characters

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Q:What is the allowable leakage rate of the gate valve D?
In GB/T 13927, the leakage rate of the valve is divided into 10 grades, namely: A, AA, B, C, CC, D, E, EE, F, G class. And stipulates that when the order contract does not specify, the metal sealing valve according to D requirements.
Q:What is wire feed gate valve? What do you say in French?
It should be the wire gate valve. Refers to the valve body with internal thread or external thread, and pipe thread connection. Also called thread valves, threaded valves, valves within the toothFlange gate valve is connected to the flange gate valve, this connection is the most common wayThe main difference is the connectionI only know their English, I'm sorry I can't help youBox thread valveFlange valve
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:HVAC design, why is less than DN50 of pipe gate valve and cut-off valve,
Have not heard of this requirement, before the ball valve and butterfly valve quality is rarely used now are good, can be used, but not easy to control the flow valve butterfly valve can close more time-saving, fluid resistance of small. HVAC branch pipe, to flow control, so the choice of gate valve and cut-off valve is more reasonable, and now choose a ball valve is also a lot.
Q:Is the check valve in or behind the gate valve?
The exit of the general pump is the first soft connection (shock absorber), followed by the check valve, and then the partition valve (such as butterfly valve, gate valve, cut-off valve, etc.), this is not the final answer.The question is interesting, and no corresponding information has been found in the relevant standards. We have also discussed the related issues, but differences of opinion is relatively large, the advantages of 1, first installed check valve installed after the valve or butterfly valve, check valve, can be protected, especially in a parallel pump, when the pump does not start, another pump starts when the impact force is gate valve or butterfly valve bear, disadvantages: gate valve or check valve who will protect? There have been a case of butterfly valve is broken. 2, first installed gate valve or butterfly valve installed after the check valve, advantages: can protect the butterfly valve or gate valve, the impact on the check valve to bear. Disadvantages: check valve who will protect, check valve by pressure difference switch, if the high pressure high pressure pipe, pump, if the flow is not stable, so check valve will repeatedly switch, will affect the check valve life. Personal opinion: check valve, check valve performance now have changed, many are using the slow closing check valve, so the impact force is two aspects to bear, because exports are not fully open the valve or butterfly valve, so you can put in check after the gate valve or butterfly valve valve. If not the slow closing check valve installed in the valve or the best after the butterfly.
Q:Which is more expensive, bronze gate valve or brass gate valve?
But the obvious weakness of brass is its poor strength, relatively large volume, and its lack of corrosion resistance.
Q:Valve flange drawing n- up to what
A bolt hole used to indicate a flangeThe value of N indicates the number of bolt holesUp to the numerical representation of bolt hole size
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:What is the Z15T-16C letter of the gate valve?
The Z class code indicates the type of gate valve, gate valve is the first letter of the alphabet. The gate is manual driving mode, 1 said the connection form of gate valve for connecting thread, 5 represents the structure form of gate valve for rigid single gate, T gate said lining material of copper alloy, 16 PN1.6MPa nominal pressure valve. C said the valve body material is carbon steel.
Q:What is the size and length of the DN80 gate valve? 10 kg and 16 kg, respectively?
Valve structure length standards are PN16, short series for 203mm, long series for 280mm, flange size by PN16.

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