Gate Valve Cast Irron /Ductile Iron Metal Seated NRS
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 200 kg
- Supply Capability:
- 10000 kg/month
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
.1.Structure of Gate Valve Description:
A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid. On opening the gate valve, the flow path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid velocity causing disk and seat wear and eventual leakage if used to regulate flow. Typical gate valves are designed to be fully opened or closed.When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.
2. Main Features of the Gate Valve:
• Valve body cavity using non-toxic epoxy resin,both inside and outside flashboard completely is coated with rubber
• Free of water pollution
• High manufacturing accuracy
• High strength
• Environmental protection and energy saving
• Good visual effect
3. Images
4. Gate valve Specification
1) Product information: the gate valves supplied are mainly used for adjusting water, steam, oil, gas, and natural gas in chemical industries
2) Standards: AWWA, DIN3352 F4/F5, BS5163, BS5150
3) Connection type: flanged type, push-on type, mechanical joint type, plain ends type
4) Material:
a) Body : Ductile Iron GGG500-7
b) Wedge : D/I , core fully vulcanized with NBR or EPDM rubber
c) Wedge Nut : Brass
d) Stem : Stainless steel , BS970 431S29 or DIN17440x20Cr13
e) Gasket : NBR
f) Bonnet : GGG500-7
g) O ring : NBR
h) Washer : Carbon steel or Stainless steel .
5) Size: 50-400mm/2" - 16"
6) Pressure grade: PN10, PN16
7) Coating:
a) Fusion-bonded epoxy 200-250 microns inside and out side
b) Coating as per customers' requirement
8) Package : carton for each item , wooden boxes outside
5.FAQ
1. What's are the characteristics of gate valve?
The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel.
2. What is the work principle of gate valve ?
The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry.
3. What is the structure?
Bonnets provide leakproof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.
- Q:What does Z941H-25DN250 mean by electric gate valve (excluding electric equipment)?
- Cast steel flanged gate valve 25 pressure bore 250
- Q:Is the axial force and torque of the wedge gate valve the same?
- B higher temperature. C nice wedge single gate valve is suitable for high temperature medium easy to coking. Flexible gate valve features: high temperature, a wedge type single gate valve in a special form. Comparison with wedge gate valve.
- Q:Will the water supply and drainage to wear civil air defense gate valve, the use of bright rod or dark rod?
- 2, soft sealing gate valve at the bottom of the pit. No accumulation of slag material, valve opening and closing of the failure rate is low;
- Q:Stainless steel gate valve DN150 200300 weight, who knows?
- The weight of DN150/200/300 is 134/192/379kg. Of course, different manufacturers may vary in weight, but not much.It's not that heavy at all
- Q:Soft sealed gate valve and hard sealing gate valve which good?
- If the caliber, material and pressure levels are the same, the current market price is still soft sealed gate valve, about 20-30%.
- Q:The main question is, what are the functional differences in which case?
- The gate (gate valve) is a gate 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 gate valve. The 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.Gate valve advantages: 1, fluid resistance is small,.2, opening and closing more labor-saving,.3, medium flow unrestricted, not disturbed flow, do not reduce pressure,.4, simple shape, structural length is short, manufacturing process is good, a wide range of applicationsValve shortcomings: 1, between the sealing surface is easy to cause erosion and abrasions, maintenance is more difficult,.2, big size, open need some space, opening and closing time is long,.3, the structure is more complex
- Q:What is the difference between gate valve Z41T and Z45T?
- Z41T is a dark pole gate valve, and Z45T is a plain rod gate valve,
- Q:What is the difference between gate valve and gate valve? Is it the same valve?
- The same, very few people call gate valve, all call gate valve.
- Q:What type of flange does it fit with the gate valve?
- This depends on the type of gate valve, valve standards are marked with matching flange standards. Different types of flanges for different gate valves are also different.The flange of General GB gate valve is GB/T9113 series.
- Q:What is the difference between cut-off valve and gate valve?
- Simply put, the cut-off valve is one-way, only into, do not give up, the valve is two-way
1. Manufacturer Overview |
|
---|---|
Location | |
Year Established | |
Annual Output Value | |
Main Markets | |
Company Certifications |
2. Manufacturer Certificates |
|
---|---|
a) Certification Name | |
Range | |
Reference | |
Validity Period |
3. Manufacturer Capability |
|
---|---|
a)Trade Capacity | |
Nearest Port | |
Export Percentage | |
No.of Employees in Trade Department | |
Language Spoken: | |
b)Factory Information | |
Factory Size: | |
No. of Production Lines | |
Contract Manufacturing | |
Product Price Range |
Send your message to us
Gate Valve Cast Irron /Ductile Iron Metal Seated NRS
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 200 kg
- Supply Capability:
- 10000 kg/month
OKorder Service Pledge
OKorder Financial Service
Similar products
New products
Hot products
Related keywords