China cheaper Gate Valve
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Gate Valve
Flange ends cast steel gate valve are used to cut or connect the pipe media under nominal pressure between class150-2500, working temperature≤600°C, in oil industry, chemical industry, fossil-field power plants.
Design Feature of Gate Valve
1. Both design and manufacture are carry out strictly fellow API600 and API602. The products feature a reasonable structure, reliable seal, good performance and nice modeling.
2. Co hard alloy welded sealing surface, which is wearing resistance, erosion proof, abrasion proof and long-lived.
3. The surface and the adjusting media of the valve shaft are nitrogenized so that it is erosion and abrasion resistance.4. Class≥900LB, the media cavity uses a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.
5. There is backward sealing structure in the valve, so the sealing is reliable.
6. The material of the filling and the flange size can be chosen and the matched according to the applications and the requirement of the wier's. That can satisfy all kinds of working requirements.
|
Item |
Material |
Symbol |
|
Body |
Cast Iron |
ASTM A126 CL.B GG25 |
|
Ductile Iron |
ASTM A536 65-45-12 GGG40 | |
|
Carbon steel |
ASTM A216 WCB | |
|
Stainless steel |
ASTM A351 CF8/CF8M | |
|
Disc |
Ductile Iron |
ASTM A536 65-45-12 GGG40 |
|
Carbon steel |
ASTM A216 WCB | |
|
Stainless steel |
ASTM A351CF8/CF8M | |
|
Bronze |
ASTM B148 C954 | |
|
Stem |
Stainless steel |
ASTM A182 304.316.410 |
|
Alloy |
Monel K500 | |
|
Seat |
Elastomer |
Working temperature |
|
EPDM |
-15°C~ 140°C | |
|
NBR |
-10°C ~80°C | |
|
VITON |
-20°C ~150°C | |
|
PTFE |
-15°C~205°C |
The package of gate valves
- Q: what are their applicable conditions? Advantages and disadvantages?
- Valve is closed parts (RAM) along the vertical axis of the mobile channel valve in the pipeline, used primarily as a medium cut that open and close, generally do not have to do with traffic regulation, it can be used for low temperature and low pressure can also apply to high temperature and high pressure, and according to the different valve material for different media. In various types of valves, gate valve is the most widely used.Advantages: low fluid resistanceSmall torque required for opening and closingYou can use the ring road in which the medium flows in the two direction, that is to say, the medium is free of flowWhen fully open, the sealing surface is less eroded by the working medium than the cut-off valveThe structure is simple and the manufacturing process is betterThe structure length is shortDisadvantages: the overall size and opening height are larger, the space required for installation is also largerIn the process of opening and closing, there is relative friction between the sealing surfaces, and wear more easily, and even cause friction at high temperatureGeneral gate valve has two sealing pairs, to the processing, grinding and maintenance increased the number of difficultiesLong opening and closing time;
- Q: What is the difference between the cut-off valve and gate valve, the general will use the cut-off valve instead of gate valve
- Yes. Globe valves and gate valves are indeed common in certain piping and operating conditions.
- Q: What does gate valve Z41H-40 mean?
- Z - that means gate valve (the initial letter of Zha)4---- is the connection form, which means flange connection1---- form of structure, which means Plain Bar wedge type rigid single gate valveH---- sealing surface overlaying ferrous carbide (initial letter of alloy steel He)40---- nominal pressure is 40 kg, or 4.0MPa, that is, PN10 at 250 degrees Celsius, the maximum working pressure is 40 kgThe material is cast carbon steel
- Q: Gate valve Z41H-16Q generally used for what place?
- Gate valve is one of the most commonly used cut-off valve, mainly used to connect or cut off the medium in the pipeline, not applicable to regulating medium flow. Suitable for medium and large diameter pipelines.
- Q: What does gate valve do?
- 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 valves for Class150 ~ 2500, the working temperature of -29 to 425 DEG C (Tan Gang) or -29 to 500 DEG C (stainless steel) small caliber pipeline, used to cut off or connect the line of medium, use different materials, can be separately applied to water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea etc. a variety of media, the 3 Classification valve according to the different classification methods can be divided into: the parallel gate valve, wedge gate valve, valve lift, rotating rod valve, quick opening and closing valve, reduced valve, flat gate valve etc.. 4, characteristics of fluid resistance is small, applicable pressure, temperature range, medium flow direction is not restricted, good sealing performance
- Q: Why the valve can only be fully open and fully closed valve can adjust the flow?
- You said the cut-off valve is that the spool is rotating rather than vertical movement structure?Theoretically, the flow regulation can be realized by controlling the position (angle or distance), and all of them have mature products.
- Q: What is the difference between an elastic gate valve and a rigid gate?
- One is cast iron, intermediate rubber gate, one is cast steel, and the other is steel flashboard,
- Q: What does gate valve DN80-PN16-QT450 mean?
- DN80 means: liquid, internal thread connection, the valve sealing surface material for rubber, seat sealing surface material for lining adhesive, nominal pressure of 10 kg / cm2, nominal diameter of 80mm Iron Butterfly valve.
- Q: Why does the centrifugal pump start and stop in the case of closing the gate valve?
- After the valve is closed to stop the cause of centrifugal pump outlet valve is closed to stop the pump to prevent the flow back into the pump, impeller, impeller in reverse, part of the mechanical seal in the pump pump impeller reversal will have adverse consequences, serious damage to the centrifugal pump, to close the valve after the shutdown.
- Q: What are the types and product categories of knife gate valves?
- Types and classification of knife gate valves:PZ73H, PZ73F, PZ73Y manual knife gate valve: manual drive, clamp connections, rod parallel rigid single gate and valve seat sealing surface is made of hard alloy, Teflon or stainless steel body processing, nominal pressure.2PN10~16, the valve body material for carbon steel (PZ73H-10C/16C), stainless steel (PZ73F-10P/16P PZ73Y-10P/16P), with the function of slag gate valve.
1. Manufacturer Overview
| Location | Shanghai, China |
| Year Established | 1993 |
| Annual Output Value | Below US$1 Million |
| Main Markets | North America; East Europe; West Europe; East Asia; Mid East |
| Company Certifications | ISO9001:2008;CE;API-6D;OHSAS18001:2007 |
2. Manufacturer Certificates
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
3. Manufacturer Capability
| a) Trade Capacity | |
| Nearest Port | Shanghai |
| Export Percentage | 1% - 10% |
| No.of Employees in Trade Department | above 100 People |
| Language Spoken: | English; Chinese |
| b) Factory Information | |
| Factory Size: | 89,000 square meters |
| No. of Production Lines | Above 10 |
| Contract Manufacturing | OEM Service Offered; Design Service Offered |
| Product Price Range | High; Average |
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China cheaper Gate Valve
- Ref Price:
-
- Loading Port:
- Shanghai Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 20 sets pc
- Supply Capability:
- To Order pc/month
OKorder Service Pledge
OKorder Financial Service
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