NBR Rubber Sealing Gate Valve
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Name :gate valve
Media:Base
Size : DN50 to DN1000MM
Material : Casting
Power:Manual/Gear Operate
Specifications:
Size:DN50—DN1000
Nominal Pressure: PN10/PN16
Working Temperature: -10°C~120°C
Suitable Medium: Chemicals,air,water,steam,oil, acids,salts,etc
Standards:
Design standard: DIN3352 F4/F5, AWWA C509/515, BS5163
Face to Face: DIN3202 F4/F5, BS5163
Flange Drilling: DIN2533 PN10/PN16, ANSI 125/150,JIS10K
Test Inspection: DIN3230, BS6755,API598
Materials:
Body:Ductile Iron
Disc: Ductile Iron+Rubber
Stem:Stainless steel
Sealing Ring: NBR, EPDM
O ring: NBR,EPDM
- Q: what are their applicable conditions? Advantages and disadvantages?
- Butterfly valve is a disc type of open and close parts reciprocating reciprocating about 90 degrees to open, close and adjust the fluid channel of a valve.Advantages: the butterfly valve has the advantages of simple structure, small volume, light weight, material consumption, installation of small size, and torque is small, simple and rapid operation, and also has good flow characteristics of regulation and sealed off, is nearly 10 years the fastest growing valve, high temperature and high pressure, and to large diameter, high sealing function of the direction, long life, good adjusting features and a valve development.Disadvantages: the butterfly valve relative to the gate, ball valve pressure loss is relatively large, it is suitable for pressure loss requirements lax piping system.Under normal circumstances, it is not suitable for high temperature and high pressure pipeline system.Valve is closed parts (valve) moving along the centerline of the valve seat, the valve stem to open or close the trip is relatively short, but very reliable cut off function, and because changes in the valve seat and the valve stroke is proportional to, is also very suitable for the regulation of traffic.Advantages: in the process of opening and closing, the friction between the disc and the valve body is smaller than that of the gate valve, so it is wearableThe opening height is generally only 1/4 of the diameter of the seat channel, so it is much smaller than the gate valveGenerally, there is only one sealing surface on the body and disc, so the manufacturing process is good and easy to maintain;Disadvantages: the flow resistance coefficient is relatively large, resulting in pressure lossUnsuitable for large caliber productionThe opening and closing moment is larger and the structure length is longer.
- Q: What is the standard length of GB steel gate valve?
- 1, product standardsGeneral purpose valves, flanged connections, iron gate valves, GB/T 12232-2005General requirements for steel valves GB/T 12224-2005"Steel flat gate valves for pipelines" JB/T 5298-91Inspection and test of valves. JB/T 9092-1999Standard for safety evaluation of drinking water distribution equipment and protective materials GB/T 17219-1998
- Q: What else, P54140V, 170V? What do they mean?
- P work pressureP54 temperature at 540 degrees of work pressureThe pressure at P54 100 is 540 at the temperature of 100barV valve for chromium molybdenum vanadium steelP54 pressure 140V temperature at 540 DEG C for 140bar valve for chromium molybdenum vanadium steelP54 pressure 170V temperature at 540 DEG C for 170bar valve for chromium molybdenum vanadium steelFrom the JB/T4018 "valve type model preparation method"The standard unit is MPa, but it is usually used in bar
- Q: How big valves and fittings need flange installation, such as gate valves, DN50, DN80 and the like?.
- According to user requirements, DN15 also has flanges, in general, DN50 or more are flanges
- Q: What does Z941H-25DN250 mean by electric gate valve (excluding electric equipment)?
- Cast steel flanged gate valve 25 pressure bore 250
- Q: What are the meaning of the cast rigid gate valves z41h-16c?
- According to the provisions of the JB/T 308-2004 valve type programming method:Z== gate valve4== flange connection1== rigid single gateH== sealing surface material: Cr13 stainless steel16== pressure rating: 1.6MPaC== body material: carbon steel
- Q: What are the main types of gate valves?
- According to the thread position of the valve stem, can be divided into two kinds of open rod gate valve and dark rod gate valve.
- Q: What are the structural differences between parallel and wedge valves?
- The advantages of dual gate plate is sealed and angle precision low temperature is not easy to make the wedge gate, the abrasion of the sealing surface and shim.The disadvantage is that the structure is complex, easy to stick in the dry medium, mainly the upper and lower baffles. After years of corrosion, the gate is easy to fall off. Although the single gate is sealed and angle accuracy requirements are relatively high, difficult processing and temperature change may make the gate wedge and other shortcomings, but has the advantages of simple structure, reliable use, especially to the flexible gate, can produce the micro elastic deformation to compensate for the deviation between the sealing surface angle processing, which is widely used at present.For more information about valves, please keep an eye on the valve knowledge section.
- Q: What's the meaning of flexible z45x-10q door valve?
- Crown valve pressModel Z45X-10QZ refers to gate valve4 finger flange connection5 refers to the dark bar driveX refers to rubber seals10 refers to 10 kg pressureQ refers to the body material, ductile ironFull bore flange soft sealed gate valve
- Q: What are the standards for the execution of cast iron dark pole gate valves?
- Standard Specification for cast iron blind rod gate valves:1, design and manufacture: according to the provisions of GB/T12234-892, structural length: according to the provisions of GB/T12221-893, flange size: according to the provisions of JB79 GB/T9112-91314, inspection and test: according to the provisions of JB/T9092-99 GB/T13927-92Drive mode: manual, electric, gear drive;
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NBR Rubber Sealing Gate Valve
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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