- ball
- Gate valve
- butterfly valve
- Regulating valve
- Cut-off valve
- Globe valve
- Check valve
- Knife Gate Valve
- Safety valve
- Pressure relief valve
- Drain valve
- Plug valve
- Diaphragm valve
- Discharge valve
- Exhaust valve
- Filter
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- Needle valve
- Plunger valve
- Copper valve
- Compensator
- Hydraulic control valve
- Electric two way valve
- Vacuum valve
- Thermal insulation valve
- Flame arrester
- Breathing valve
- Balance valve
- Sludge discharge valve
- Ammonia valve
- Metallurgical valves
- Fluorine valve
- Low temperature valve
- Power station valve
- Natural gas valves
- Other valves
- Inlet valve
- Import actuator
AX742X diaphragm type safety relief / hold valve
- sell:021-32051999
- sell:021-32050777
- fax:021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
AX742X safety relief/pressure holding valve is composed of main valve and needle type regulating valve, guide valve, ball valve and nozzle system. The main valve body adopts full channel, direct current and streamline design, and adopts diaphragm or piston structure. This product sets the outlet pressure by setting the spring pressure of pressure regulating guide valve and adjusting the opening of needle valve, and stabilizes the outlet pressure through the feedback of nozzle system and control room.
This product uses needle-type regulating valve and guide valve to control water pressure independently. It does not need additional equipment and energy. It is easy to maintain and maintain. It is less affected by inlet pressure and flow. It has high accuracy of pressure control and reliable pressure reduction and stabilization.
Working principle
When the pipe feeds water from the inlet end, the water flows through the needle valve into the main valve control room, and the outlet pressure acts on the guide valve through the pipe. When the outlet pressure is higher than the set value of the guide valve, the guide valve closes and the control room stops draining. At this time, the main valve control room pressure rises and closes the main valve, and the outlet pressure no longer rises.
When the outlet pressure drops to the pilot valve setting pressure, the pilot valve opens and the control room drains downstream. Because the displacement of the pilot valve is greater than the water intake of the needle valve, the pressure of the main valve control room drops, and the inlet pressure makes the main valve open. Under steady state, the inlet and drainage of the control room are the same, the opening degree is constant, and the outlet pressure remains unchanged.
The outlet pressure can be set by adjusting the guide valve spring.
Work characteristics
1, pressure control is stable and reliable. The pilot valve and main valve work continuously, and the downstream pressure changes continuously and smoothly.
2, easy to operate. After the working pressure is adjusted, the main valve automatically adjusts when the upstream pressure or flow changes, and the downstream pressure is stabilized.
3, the valve body uses a full channel, DC, streamlined design. The hydraulic loss is small and the energy saving effect is good.
Functions and uses
The valve is generally installed in the upstream of the water supply network system to achieve the function of reducing pressure and stabilizing the downstream pipe network or device.
This series of valve products are widely used in high-rise buildings, living areas or other water supply network system hydraulic control.
Main technical parameters
公稱壓力(Mpa) | 殼體試驗壓力(MPa) | 密封試驗壓力(MPa) | 調壓范圍(MPa) | 適用介質 | 介質溫度(℃) |
1.0 | 1.5 | 1.1 | 0-1.0 | 水 | 0-80 |
1.6 | 2.4 | 1.76 | 0-1.6 | ||
2.5 | 3.75 | 2.75 | 0-2.5 |
零件名稱 | 零件材料 |
閥體 閥蓋 | WCB |
閥座 閥盤 | 銅合金/2Cr13 |
密封圈 O型圈 | 丁腈橡膠 |
閥桿 | 2Cr13 |
彈簧 | 50CrVA |
缸套 活塞(活塞型) | 2Cr13 |
膜片(膜片型) | 夾織物丁腈橡膠 |
調節(jié)閥 球閥 | 銅合金 |
過濾器 | 不銹鋼 |
DN | L | H | D mm | D1 mm | b mm | D2 mm | n-Φd | ||||||||||
mm | mm | PN1.0 | PN1.6 | PN2.5 | PN1.0 | PN1.6 | PN2.5 | PN1.0 | PN1.6 | PN2.5 | PN1.0 | PN1.6 | PN2.5 | PN1.0 | PN1.6 | PN2.5 | |
40 | 240 | 270 | 150 | 150 | 150 | 110 | 110 | 110 | 18 | 18 | 18 | 88 | 88 | 84 | 4-17.5 | 4-17.5 | 4-18 |
50 | 240 | 270 | 165 | 165 | 165 | 125 | 125 | 125 | 20 | 20 | 20 | 102 | 102 | 99 | 4-17.5 | 4-17.5 | 4-18 |
65 | 270 | 340 | 185 | 185 | 185 | 145 | 145 | 145 | 20 | 20 | 22 | 122 | 122 | 118 | 4-17.5 | 4-17.5 | 8-18 |
80 | 300 | 400 | 200 | 200 | 200 | 160 | 160 | 160 | 22 | 22 | 24 | 133 | 133 | 132 | 8-17.5 | 8-17.5 | 8-18 |
100 | 350 | 440 | 220 | 220 | 235 | 180 | 180 | 190 | 24 | 24 | 24 | 158 | 158 | 156 | 8-17.5 | 8-17.5 | 8-22 |
125 | 400 | 460 | 250 | 250 | 270 | 210 | 210 | 220 | 26 | 26 | 26 | 184 | 184 | 184 | 8-17.5 | 8-17.5 | 8-26 |
150 | 480 | 500 | 285 | 285 | 300 | 240 | 240 | 250 | 26 | 26 | 28 | 212 | 212 | 211 | 8-22 | 8-22 | 8-26 |
200 | 500 | 640 | 340 | 340 | 360 | 295 | 295 | 310 | 28 | 30 | 30 | 268 | 268 | 274 | 8-22 | 12-22 | 12-26 |
250 | 605 | 690 | 395 | 405 | 425 | 350 | 355 | 370 | 28 | 32 | 32 | 320 | 320 | 330 | 12-22 | 12-26 | 12-30 |
300 | 700 | 820 | 445 | 460 | 485 | 400 | 410 | 430 | 28 | 32 | 34 | 370 | 370 | 389 | 12-22 | 12-26 | 16-30 |
350 | 800 | 950 | 505 | 520 | 555 | 460 | 470 | 490 | 30 | 36 | 38 | 430 | 430 | 448 | 16-22 | 16-26 | 16-33 |
400 | 900 | 1400 | 565 | 580 | 620 | 515 | 525 | 550 | 32 | 38 | 40 | 482 | 482 | 503 | 16-26 | 16-30 | 16-36 |
450 | 1000 | 1580 | 615 | 640 | 670 | 565 | 585 | 600 | 32 | 40 | 42 | 532 | 550 | 548 | 20-26 | 20-30 | 20-36 |
500 | 1100 | 1600 | 670 | 715 | 730 | 620 | 650 | 660 | 34 | 42 | 44 | 585 | 585 | 609 | 20-26 | 20-33 | 20-36 |
600 | 1300 | 1815 | 780 | 840 | 845 | 725 | 770 | 770 | 36 | 48 | 46 | 685 | 685 | 720 | 20-30 | 20-36 | 20-39 |
700 | 1400 | 2040 | 895 | 910 | 960 | 840 | 840 | 875 | 40 | 54 | 50 | 800 | 800 | 820 | 24-30 | 24-36 | 24-42 |
800 | 1500 | 2350 | 1015 | 1025 | 1085 | 950 | 950 | 990 | 44 | 58 | 54 | 905 | 905 | 925 | 24-33 | 24-39 | 24-48 |
900 | 1700 | 2606 | 1115 | 1125 | 1185 | 1050 | 1050 | 1090 | 46 | 62 | 58 | 1005 | 1005 | 1028 | 28-33 | 28-39 | 28-48 |
1000 | 1900 | 2765 | 1230 | 1255 | 1320 | 1160 | 1170 | 1210 | 50 | 66 | 62 | 1110 | 1110 | 1140 | 28-36 | 28-42 | 28-56 |
1200 | 2050 | 2950 | 1455 | 1485 | 1530 | 1380 | 1390 | 1420 | 56 | 52 | 70 | 1330 | 1328 | 1350 | 32-39 | 32-48 | 32-55 |
1400 | 2200 | 3180 | 1675 | 1685 | 1755 | 1590 | 1590 | 1640 | 62 | 58 | 76 | 1530 | 1530 | 1560 | 36-42 | 36-48 | 36-60 |
1600 | 2400 | 3400 | 1915 | 1930 | 1955 | 1820 | 1820 | 1860 | 68 | 64 | 84 | 1750 | 1750 | 1780 | 40-48 | 40-55 | 40-60 |
The best quality, first-class service Qigao creates more value for you!
"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:
Product Standards:
Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.
pre-sale service:
Product introduction, technical exchange, non-standard product design, troubleshooting。
Sale service:
A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service:
1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.
3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).
4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:
a、Structure length;
b、Connection Type;
c、Nominal diameter, full diameter, reduced diameter, pipe size;
d、Operating medium and temperature, pressure range;
e、Tests, inspection standards and other requirements
2、The factory can configure various types of driving devices according to customer's specific requirements.。
3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.
Order Process:
1、Customer purchase list fax to021-33872143,Or call us 021-33872141
2、Receive customer purchase list, provide valve model selection and quotation (price list)。
3、Specific agreement: delivery date, special requirements, etc.。
download Google:
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:
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2、The factory can configure various types of driving devices according to customer's specific requirements.。
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3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
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4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time., The rest of the payment will be remitted before shipment to arrange delivery in time.。
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Sale service:
Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。
For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service:
1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.,
In order to further improve product quality。
3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。
4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。
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