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
JDQ11Y Internal Thread Pneumatic Programmed Shut-Off Valve
JDQ11Y internal thread pneumatic program-controlled cut-off valve is a kind of long distance, fast opening and cutting valve in a variety of pipelines.The performance specificationSpecifications (DN) | 15-200 | MPa |
Nominal pressure | 1.6 |
Seal test pressure | (1.1 times) |
Body strength test pressure | (1.5 times) |
Operating temperature (ºC) | -40∽100 / -40∽425 |
Applicable medium | Water, steam, oil, gas |
The length of the structure | GB12221-89/ GB12233 |
The standard of the flange | JB/T79-94 |
Action principle and structure descriptionWhen the controller according to the pre-programmed program of an air source reversing valve output a signal, the reversing valve action, so that the pressure instrument air source through the reversing valve switch into the upper or lower chamber of the pneumatic actuator cylinder, the piston movement to open or close the valve. Operation and connection of valve (as shown in figure).Main appearance and connection size (refer to composition)DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 |
L | 90 | 100 | 120 | 140 | 170 | 200 | 260 |
G | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 |
Precautions for storage, installation and use1. Both ends of the valve path must be covered with protective cover, stored in a dry, ventilated room, such as long-term storage should be regularly checked to prevent corrosion;
2. Do not remove the dust cover before installation of the valve, so that there is no dirt in the valve;
3. The valve can be installed on horizontal or vertical pipelines, remove the dust cover when installing, and blow the pipeline clean with air first to avoid dirt into the valve cavity.Other Products
Pneumatic emergency cut-off valve
Qdq421f-25 pneumatic emergency cut-off valve is divided into normally open and normally closed, installed in liquid ammonia, gas storage tank/pipeline exit emergency can be quickly cut off the valve, the use of solenoid valve to control the valve open - close. Widely used in gas, ammonia or weak corrosive gas storage tank safety protection valve.
Pneumatic emergency cut-off valve is composed of multi-spring pneumatic film actuator or floating piston actuator and regulating valve. The solenoid valve coil can receive the signal of the leakage instrument and control the cutting, switching or switching of the fluid in the pipeline. The structure of the cut-off valve is equipped with a plug with low melting point (fusible alloy), which is easy to melt and relieve pressure to quickly close the inlet and outlet of the storage tank to ensure the safety of the storage tank system in case of accidents due to temperature rise. The opening pressure of the cylinder is ≥ 0.3-0.6mpa, and the daily working pressure of the cylinder shall not be less than 0.4mpa to ensure the normal operation of the valve.
Normally open pneumatic emergency cut-off valve; With excellent technical performance, low load loss and high reliability, and the use of remote air source matching, the use of air source control valve closed, so that in the pipeline or tank accident, the staff quickly through the control room to touch the switch, solenoid valve instantly energized, air source quickly through the closure of the valve.The performance specificationspecifications(DN) | Nominal pressure(Mpa) | Seal test pressure(Mpa) | Working temperature | Applicable medium | Control cylinder or air pressure section |
Disc opening height (MM) | Use medium | Maximum oil or air pressure when disc is open (MPa) |
25 | 2.5 | 2.75 | -40ºC~80ºC | Liquefied petroleum gas, liquid ammonia, etc | 15 | 2# Spindle oil or ammonia | Oil 3MPa, gas 0.6mpa |
40 | 2.5 | 2.75 | 18 | Oil 3MPa, gas 0.6mpa |
50 | 2.5 | 2.75 | 18 | Oil 3MPa, gas 0.6mpa |
65 | 2.5 | 2.75 | 22 | Oil 3MPa, gas 0.6mpa |
80 | 2.5 | 2.75 | 27 | Oil 3MPa, gas 0.6mpa |
Action principle and structure description1. In the absence of external pressure valve operation case, the disc in a normally closed state, when used in the storage tank system, emergency shut-off valve and pump or cartridge, by hand or ammonia pressure valve to open, use under the pressure of oil or gas valve is fully open, when need to close the valve or when there is an emergency, can be oil or ammonia pressure drain away, The valve closes automatically.
2. When the disc is closed, the pressure is achieved by opening the relief valve or operating the handwheel or fusible plug in the pipeline to melt when the temperature rises.
3. The flow direction of the valve working medium should be high into low out, and the flow direction of ordinary stop valve is just under the opposite.
4. The connecting dimensions of valve flanges shall be in accordance with JB/T79.1-94 "Convex Integral cast steel flanges" or HG20592-97.Main external dimensions and connection dimensions (refer to composition)DN | L | D | D1 | D2 | b | F | Z-Ф |
25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-Ф14 |
32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-Ф18 |
40 | 200 | 145 | 110 | 85 | 18 | 2 | 4-Ф18 |
50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-Ф18 |
65 | 290 | 180 | 145 | 120 | 22 | 3 | 8Ф18 |
80 | 310 | 195 | 160 | 135 | 22 | 3 | 8-Ф18 |
100 | 350 | 230 | 190 | 160 | 24 | 3 | 8-Ф23 |
125 | 400 | 270 | 220 | 188 | 28 | 3 | 8-Ф25 |
150 | 480 | 300 | 250 | 218 | 30 | 3 | 8-Ф25 |
200 | 600 | 360 | 310 | 278 | 34 | 3 | 12-Ф25 |
250 | 730 | 425 | 370 | 332 | 36 | 3 | 12-Ф30 |
300 | 850 | 485 | 430 | 390 | 40 | 3 | 16-Ф30 |
Matters needing attention1. Pneumatic cutting valve cylinder opening pressure ≥ 0.3-0.6mpa, the daily working pressure of the cylinder, not less than 0.4mpa, to ensure the normal work of the valve.
2. The cut-off valve adopts the principle of check valve, can only be one-way truncation, installation must pay attention to the valve mark, the end to be protected as the valve entrance. Valve installation should be noted: high in low out.
3. Normally closed pneumatic emergency cut-off valve should not be opened for a long time to avoid spring fatigue failure.
4. Flange sealing surface form, pressure grade and connection standard must be indicated when ordering.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 specificationsPressure 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 |
Main components and materialsPart 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 |
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