Basic Info.
Media
Nitrogen, Anhydrous Air
Channel
Straight Through Type
Function
Blow-Down Valve, Relief Valve, Atmospheric Valve, Bypass-Valve
Temperature
High Temperature
Application
Industrial Usage, Water Industrial Usage, Household Usage
Manufacturer Level
Top Level
Transport Package
Wooden Box
Specification
Stainless Steel
Product Description
The Introduction of Products
QDQ421F Pneumatic Emergency Cut-Off Valve Manufacturer
Pneumatic emergency cut-off valve professional manufacturers, by the factory independent research and development of the production of emergency cut-off valve quality is reliable, reasonable price, perfect after-sales service. Pneumatic emergency cut-off valve is suitable for all kinds of heavy industry and building pipelines. Nengen quality, global share! The emergency shut-off valve produced by our company has excellent technical performance, low load loss and high reliability. Applicable to gas, natural gas and liquefied petroleum gas and other combustible gases, widely used in gas supply network system, gas thermal energy plant workshop, gas boiler room and residential residence safety facilities. Pneumatic emergency cut-off valve is a safety protection valve, installed in the liquefied petroleum gas (gas), liquid phase and gas phase on the pipeline, and long distance gas source, using the open-close air control valve, so that happens a lot on a pipe or tank leaking even fire, fast manual air pressure relief, or high temperature while 75% %P 5C% %D or fusible alloy melt, The cylinder automatic pressure relief, valve quickly closed and leakage, play a safe role. The valve can also be used as a pneumatic globe valve. Can realize remote control, close quickly, open flexible. It is an ideal alternative to import. Pneumatic emergency cut-off valve air source inlet is equipped with a two - three solenoid valve, the use of remote electrical console control valve switch. (1) The gas leak alarm is energized, the solenoid valve is energized and exhausts, and the valve closes automatically. (2) Manually control the solenoid valve (press the red clip) exhaust, the valve automatically closed.Key performance specifications| Pressure Rating | 25/4.0Mpa | Cylinder working pressure | ≤2.0Mpa |
| The use of temperature | -40~+80ºC | The cylinder uses medium | Nitrogen, anhydrous air |
| Use medium | Natural gas, liquefied gas | Fuse closed time | ±70ºC |
| Closing time | ≤5 Seconds | Cylinder opening pressure | ≥0.5-0.7Mpa |
| Part name | Material |
| The valve bonnet | Carbon steel |
| Oil cylinder, piston | Nodular cast iron |
| Seal ring, O-shaped stream | PTFE, butane rubber |
| Spring | 50CrVA (Spring steel) |
| PN | DN | L | H | H1 | D | D1 | D2 | b | f | Z-φd |
2.5MPa
4.0MPa | 25 | 160 | 260 | 230 | 115 | 85 | 65 | 16 | 2 | 4-14 |
| 32 | 180 | 270 | 240 | 135 | 100 | 78 | 18 | 2 | 4-18 |
| 40 | 200 | 280 | 250 | 145 | 110 | 85 | 18 | 3 | 4-18 |
| 50 | 230 | 300 | 270 | 160 | 125 | 100 | 20 | 3 | 4-18 |
| 80 | 310 | 360 | 320 | 195 | 160 | 135 | 22 | 3 | 8-18 |
| 100 | 350 | 400 | 360 | 230 | 190 | 160 | 24 | 3 | 8-23 |
| 150 | 480 | 510 | 510 | 300 | 250 | 218 | 30 | 3 | 8-25 |
| 200 | 600 | 610 | 550 | 360 | 310 | 278 | 30 | 4 | 12-25 |
QDY421F Stainless Steel Hydraulic Emergency Shut-Off Valve
Stainless steel hydraulic emergency cut-off valve is a safety valve, installed in the fuel gas storage tank, piping, liquid ammonia and the gas phase and the hand pump (SB03-175 type), using the hydraulic control valve open-close, so that happens a lot on a pipe or tank leaking even fire, workers can be fast manual hand pump discharge pressure, over a long distance Or 80ºC high temperature (fusible alloy) melting, and the valve cylinder automatic pressure relief, valve quickly closed and leakage, play a safe protection role.Stainless steel hydraulic emergency cut-off valve Double oil pump control multi-valve working principle:Multiple emergency shut-off valves for pipeline installation are controlled by two hand oil pumps, one of which is working and the other is standby to prevent the valve from working properly if the oil pump is damaged. Each emergency shut-off valve is controlled by one (J23H-40P) needle valve.Cut-off valve is our company combined with the advantages of globe valve, check valve and hydraulic valve, using the lifting structure of globe valve and check valve to prevent media flow back principle. Over the years through the efforts of all staff innovation, has become a leader in the field of control valve. After continuous field application practice, and exchange and cooperation with users, design appeared in the high-performance, low-cost products, and by the chemical industry, iron and steel, petrochemical metallurgy, water supply and drainage system and other leading user enterprises recognized, but also received consistent praise within the industry.The performance specification| Pressure Rating | Normal temperature test pressure(Mpa) |
| shell | seal | Low pressure seal |
| Nominal pressure (Mpa) | 1.6 | 2.4 | 1.76 | 0.6 |
| 2.5 | 3.75 | 2.75 | 0.6 |
| 4.0 | 6.0 | 4.4 | 0.6 |
| Suitable temperature | ≥150ºC |
| Applicable medium | Machine oil |
| Pressure Rating | 20K 4.0Mpa | Cylinder working pressure | ≤6.0Mpa |
| The use of temperature | -40~+80ºC | The cylinder uses medium | Mix spindle oil and transformer oil |
| Use medium | Natural gas, liquefied gas, liquid ammonia | Fuse closed time | ±80ºC |
| Closing time | ≤10 Seconds | Cylinder opening pressure | ≥2.0Mpa |
2. Before installation, clean the valve and tighten the joint of each thread.
3. The valve adopts the principle of check valve, can only be cut off, installation must pay attention to the valve mark, the end to be protected as the valve entrance.
4. Flange sealing surface form, pressure grade and connection standard must be indicated when ordering.Installation dimensions Unit:(mm)| DN | L | D | D1 | D2 | b | f | z-d | H | D0 |
| 15 | 130 | 95 | 65 | 45 | 16 | 2 | 4-*14 | 215 | 120 |
| 20 | 150 | 105 | 75 | 55 | 16 | 2 | 4-*14 | 255 | 120 |
| 25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-*14 | 285 | 120 |
| 32 | 190 | 135 | 100 | 75 | 18 | 2 | 4-*18 | 300 | 160 |
| 40 | 200 | 145 | 110 | 85 | 18 | 3 | 4-*18 | 320 | 200 |
| 50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-*18 | 380 | 240 |
| 65 | 290 | 180 | 145 | 120 | 22 | 3 | 4-*18 | 420 | 280 |
| 80 | 310 | 195 | 160 | 135 | 22 | 3 | 4-*18 | 450 | 320 |
| 100 | 350 | 135 | 190 | 160 | 24 | 3 | 8-*23 | 520 | 360 |
| 125 | 400 | 270 | 220 | 188 | 28 | 3 | 8-*25 | 558 | 400 |
| 150 | 480 | 300 | 250 | 218 | 30 | 3 | 8-*25 | 750 | 400 |
| 200 | 600 | 360 | 310 | 278 | 34 | 3 | 12-*25 | 950 | 450 |
| Part name | Material |
| The valve bonnet | Carbon steel WCB |
| Oil cylinder, piston | Chromium stainless steel |
| Seal ring, O-shaped stream | PTFE, butane rubber |
| Spring | 50CrVA (Spring steel) |
The cut-off valve is installed on the liquid ammonia, gas storage tank station or gas pipeline, so that in case of leakage or even fire on the pipeline or storage tank, the staff can relieve pressure through the remote oil pump, or melt the (fusible alloy) at 80ºC high temperature, the valve cylinder automatically relieve pressure, the valve quickly shut down and stop leakage. To protect personal safety, cut-off valve is the ideal choice of chemical dangerous goods closure products.
Double oil pump control multi-valve working principleThe pipeline installation of multiple emergency shut-off valves should be controlled by two hand oil pumps, one of which is working and the other is standby to prevent the valve from working properly when one oil pump is damaged. In the case of multiple emergency shut-off valves, one (J23H-40P) needle valve is used for control. So that the service can be closed using a needle valve.| Classes | 20K 1.0Mpa |
| Cylinder working pressure | ≤6.0.Mpa |
| The use of temperature | -40~+80ºC |
| The cylinder uses medium | Mix spindle oil and transformer oil |
| Use medium | Natural gas, liquefied gas, liquid ammonia, gas |
| Fuse closed time | + 70 ºC |
| Closing time | 10 seconds or less |
| Cylinder opening pressure | Acuity 2.0 MPa |
| Seal ring, O-ring | Polytetrafluoroethylene, butane rubber |
| The valve body | Cast steel, stainless steel 304,316,316L |
| Spring | 50CrVA (Spring steel) |
| Oil cylinder, piston | Chromium stainless steel |
| Type | Often closed |
| DN | L | H | D | D1 | D2 | b | f | z-d |
| 15 | 130 | 215 | 95 | 65 | 45 | 16 | 2 | 4-14 |
| 20 | 150 | 255 | 105 | 75 | 55 | 16 | 2 | 4-14 |
| 25 | 160 | 285 | 115 | 85 | 65 | 16 | 2 | 4-14 |
| 32 | 180 | 300 | 135 | 100 | 78 | 18 | 2 | 4-18 |
| 40 | 200 | 320 | 145 | 110 | 85 | 18 | 2 | 4-18 |
| 50 | 230 | 380 | 160 | 125 | 100 | 20 | 3 | 4-18 |
| 65 | 290 | 420 | 180 | 145 | 120 | 22 | 3 | 8-18 |
| 80 | 310 | 450 | 195 | 160 | 135 | 22 | 3 | 8-18 |
| 100 | 350 | 520 | 230 | 190 | 160 | 24 | 3 | 8-23 |
| 125 | 400 | 558 | 270 | 220 | 188 | 28 | 3 | 8-23 |
| 150 | 480 | 750 | 300 | 250 | 218 | 30 | 3 | 8-25 |
| 200 | 600 | 950 | 360 | 310 | 278 | 34 | 3 | 12-25 |
| 250 | 650 | 1050 | 425 | 370 | 322 | 36 | 3 | 12-30 |
| 300 | 750 | 1120 | 485 | 430 | 390 | 40 | 3 | 16-30 |
2. Before installation, clean the valve and tighten the joint of each thread.
3. The emergency cut-off valve adopts the principle of check valve, which can only be cut off. The valve mark must be paid attention to during installation, and the end to be protected is used as the valve entrance. Valve installation direction: high in low out.
4. Flange sealing surface form, pressure grade and connection standard must be indicated when ordering.QGY43F Hydraulic Vehicle Emergency Shut-Off Valve
In the important facilities of transportation and storage equipment such as liquefied gas tank car, train tank car, ball tank, storage tank, etc., the plug of the low melting point material valve is installed on the oil pressure pipeline or hand pull device of the valve. When loading and unloading liquefied gas, if there is an accident, The emergency cut-off device protects the safety of the equipment, the safety of the operator and the surrounding environment, preventing the occurrence of a major accident.
The performance specification| Specifications (DN) | Nominal pressure (Mpa) | Seal test pressure (Mpa) | Operating temperature (ºC) | Applicable medium | Control cylinder part |
| Disc opening height (mm) | Use medium | Disc opening pressure (Mpa) |
| 25 | 2.5 | 2.75 | - 40 ºC ~ + 50 ºC | Liquefied petroleum or liquid ammonia, etc | 12 | 2# spindle oil or 13# machine oil | 2.0-4.0Mpa |
| 50 | 2.5 | 2.75 | 18 |
Function principle and structure description:1. without external pressure valve operation case, the disc in a normally closed state, tank car, spherical tank, storage tank system when used by hand pump pressure, open the valve or a manual device, under the oil pressure or a manual device to use that valve is fully open, when you need to close the valve or when there is an emergency, can drain off or let go of the manual hydraulic system, the valve automatically shut down, Or because of the low melting point of the pipe plug in the temperature rise to achieve self-melting.
2. The connecting size of valve flange is in accordance with JB/T79.1-94 "Convex integral cast steel flange" size standard.Main external dimensions and connection dimensions (refer to composition)DN | SIZE |
D | D1 | D2 | D3 | D' | D1' | D2' | D3' | b | f | z-Фd | b' | f' | z'-Фd' | H |
25 | 160 | 125 | 102 | 88 | 115 | 85 | 68 | 58 | 22 | 3 | 4-18 | 16 | 2 | 4-14 | 250 |
50 | 195 | 160 | 135 | 121 | 160 | 125 | 102 | 88 | 26 | 3 | 8-18 | 24 | 3 | 4-18 | 338 |
| Part name | Material |
| The valve body | WCB/1Cr18Ni9Ti |
| Valve ring | F4 |
| The disc | 2Cr13/1Cr18Ni9Ti |
| Oil cylinder | 45#/1Cr18Ni9Ti |
| Spring spring | 1Cr18Ni9Ti /60Si12mn |
| Live plug | 2Cr13/1Cr18Ni9Ti |
Precautions for storage, installation and use:
1. Protective cover must be added at both ends of the valve access and stored in a dry and ventilated room. If stored for a long time, it should be checked regularly to prevent corrosion.
2. before the installation of the valve do not remove the dust cover, so that there is no dirt in the valve;
3. when installing, remove the dust cover, and blow the pipeline clean with air first, so as not to bring dirt into the valve cavity;
4. After 12-14 hours every day, the valve disc should be closed in time when the system does not work to avoid long-term compression of the spring and reduce the reliability of long-term use of the valve.
JUNKANG FLUID TECHONOLOGY CO., LTD
Professional Control Valve Manufacturer
Company ProfileJunkang Fluid Technology Co., Ltd. is an expert manufacturer of regulating valves and pressure relief valves. The company is located in the "township of pumps and valves in China" - Oubei Sanqiao Industrial Zone. It is 30 kilometers away from Wenzhou Longwan International Airport, 12 kilometers away from Wenzhou South Station and 10 kilometers away from Yongjia Station.
The company has strong technical force, with a number of sets of advanced production equipment and testing equipment. The technical team has rich product experience. The company has large-scale production. Products with reasonable design, beautiful appearance, stable quality and other characteristics, are widely used in power plants, iron and steel plants, oil extraction, refining and chemical industry, paper making, metallurgy, medicine, construction and other fields, long-term trust and praise by new and old users.
Junkang Valve has always been market-oriented, strict quality control, to ensure that the interests of users are effectively guaranteed. The company adheres to the "high quality as the main line, excellence as the goal", adheres to the "business integrity, quality innovation" business philosophy, and in the fierce market competition to establish a mutually beneficial sales network, highlighting the unique advantages of Junkang Valve.Production EquipmentCertificate After- Sale Service can be Provided
ADD:Dongou Industial Area, Oubei Town, Yongjia County, Wenzhou City, Zhejiang, China
https://pneumaticvalve.en.made-in-china.com/
FAQ
1.What's Your Strong Products?
The control valve series are our strong products.
2.If The Factory Has The Control Valve In Stock?
There are no control valve in stock at anytime, because this kinds of products are made by client's requirements
3.Can I request to advance the shipment?
It should be depends on whether there is sufficient inventory in our warehouse.
4.Can I request to change the form of packaging and transportation?
Yes, we can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.
The End
Address:
Liandu District, Lishui, Zhejiang, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Chemicals, Health & Medicine, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Service, Tools & Hardware
Management System Certification:
ISO 9001, ISO 9000, QC 080000, ISO 29001
Company Introduction:
Zhejiang Junkang Valve Technology Co., Ltd. is an expert manufacturer of regulating valves and pressure relief valves. The company is located in the "township of pumps and valves in China" - Oubei Sanqiao Industrial Zone. It is 30 kilometers away from Wenzhou Yongqiang International Airport, 12 kilometers away from Wenzhou South Station and 10 kilometers away from Yongjia Station.
In 2011, founded Junkang Fluid Technology Co., Ltd., the company has strong technical force, with a number of sets of advanced production equipment and testing equipment. The company currently has more than 30 employees, including 5 core technical personnel. The technical team has rich product experience. The company has large-scale production. There are mainly four type products: Self-Operated Control Valve, Linear Control Valve, Ball Valve and Butterfly Valve
The company specializes in the production and sales of automatic control valves, pipeline pressure control, flow control, temperature control, regulating valves and other products, These Products with reasonable design, beautiful appearance, stable quality and other characteristics, are widely used in power plants, iron and steel plants, oil extraction, refining and chemical industry, paper making, metallurgy, medicine, construction and other fields, long-term trust and praise by new and old users.
Junkang Valve has always been market-oriented, strict quality control, to ensure that the interests of users are effectively guaranteed. The company adheres to the "high quality as the main line, excellence as the goal", adheres to the "business integrity, quality innovation" business philosophy, and in the fierce market competition to establish a mutually beneficial sales network, highlighting the unique advantages of Junkang.
We cherish the JUNKANG brand which has been forged with sweat for many years, and cherish every hard-won honor. We will continue to work harder, innovate continuously and be pragmatic. Junkang continuously creates employment opportunities for the society, pays taxes honestly, and actively promotes the civilization and progress of society. We will use standard management enterprises, brand products to create markets and sincerely serve customers.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force.
We sincerely welcome customer from all walks of life to negotiate, inspect and guide us. We are willing to join hands with you and compose a song of triumph on the road to success.
Wants More information can Contacts us:
ADD: Dongou Industial Area, Oubei Town, Yongjia County, Wenzhou City, Zhejiang, China
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