300X slow closing check valve
- sell:021-32051999
- sell:021-32050777
- fax:021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
The 300X slow-closing check valve consists of main valve, one-way valve, needle valve, ball valve, micro-filter and pressure gauge. Using hydraulic automatic operation, the main valve can get the best opening or closing speed. To prevent the water hammer from hitting, we can achieve the effect of slow closing and silencing.
This product uses hydraulic self-control, does not need other devices and energy, easy maintenance, open and slow shut smoothly.
This series of valve products are widely used in high-rise buildings, living areas and other water supply network systems and urban water supply projects.
Working principle
When the valve feeds water from the inlet, the water enters the main valve control room through a micro filter, a needle valve and a one-way valve, and then drains downstream through a ball valve. Because the needle valve opening is less than the ball valve opening, that is, the main valve control room drainage speed is greater than the water intake speed, so the control room pressure reduces, acting on the lower end of the main valve disc inlet pressure open the main valve downstream water supply.
When the pipeline stops water supply, if the downstream water begins to flow back, part of the backflow water enters the main control room through the ball valve. Because of the unidirectional valve, the backflow water can not flow out of the main control room, causing the main control room to gradually pressurize, slowly closing the main valve.
Main technical parameters
公称压力(Mpa) | 壳体试验压力(MPa) | 密封试验压力(MPa) | 适用介质 | 介质温度(℃) |
1.0 | 1.5 | 1.1 | 水 | 0-80 |
1.6 | 2.4 | 1.76 | ||
2.5 | 3.75 | 2.75 |
零件名称 | 零件材料 |
阀体 阀盖 | WCB |
阀座 阀盘 | 铜合金 |
密封圈 O型圈 | 丁腈橡胶 |
阀杆 | 2Cr13 |
弹簧 | 50CrVA |
针型阀 | 铜合金 |
必赢国际437437线路 | 铜合金 |
浮必赢国际437437线路 | 铜合金 |
微型过滤器 | 不锈钢 |
1、针阀2、主阀3、必赢国际437437线路4、压力表5、单向阀
DN | L | A | A1 | H | H1 | F | D mm | D1 mm | D2 mm | n-Φd | ||||||||
mm | mm | mm | mm | 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 | |
20 | 180 | 282 | 200 | 172 | 106 | 116 | 105 | 105 | 105 | 75 | 75 | 75 | 58 | 58 | 56 | 4-13.5 | 4-13.5 | 4-14 |
25 | 180 | 282 | 200 | 172 | 106 | 116 | 115 | 115 | 115 | 85 | 85 | 85 | 68 | 68 | 65 | 4-13.5 | 4-13.5 | 4-14 |
32 | 180 | 282 | 200 | 172 | 106 | 116 | 140 | 140 | 140 | 100 | 100 | 100 | 78 | 78 | 76 | 4-17.5 | 4-17.5 | 4-18 |
40 | 240 | 320 | 210 | 265 | 210 | 170 | 150 | 150 | 150 | 110 | 110 | 110 | 88 | 88 | 84 | 4-17.5 | 4-17.5 | 4-18 |
50 | 240 | 320 | 210 | 265 | 210 | 170 | 165 | 165 | 165 | 125 | 125 | 125 | 102 | 102 | 99 | 4-17.5 | 4-17.5 | 4-18 |
65 | 250 | 330 | 215 | 310 | 215 | 180 | 185 | 185 | 185 | 145 | 145 | 145 | 122 | 122 | 118 | 4-17.5 | 4-17.5 | 8-18 |
80 | 285 | 350 | 220 | 350 | 245 | 210 | 200 | 200 | 200 | 160 | 160 | 160 | 133 | 133 | 132 | 8-17.5 | 8-17.5 | 8-18 |
100 | 360 | 410 | 230 | 460 | 305 | 275 | 220 | 220 | 235 | 180 | 180 | 190 | 158 | 158 | 156 | 8-17.5 | 8-17.5 | 8-22 |
125 | 400 | 420 | 245 | 520 | 365 | 310 | 250 | 250 | 270 | 210 | 210 | 220 | 184 | 184 | 184 | 8-17.5 | 8-17.5 | 8-26 |
150 | 455 | 430 | 260 | 570 | 415 | 355 | 285 | 285 | 300 | 240 | 240 | 250 | 212 | 212 | 211 | 8-22 | 8-22 | 8-26 |
200 | 585 | 440 | 280 | 695 | 510 | 460 | 340 | 340 | 360 | 295 | 295 | 310 | 268 | 268 | 274 | 8-22 | 12-22 | 12-26 |
250 | 650 | 450 | 300 | 780 | 560 | 500 | 395 | 405 | 425 | 350 | 355 | 370 | 320 | 320 | 330 | 12-22 | 12-26 | 12-30 |
300 | 800 | 460 | 320 | 902 | 658 | 580 | 445 | 460 | 485 | 400 | 410 | 430 | 370 | 370 | 389 | 12-22 | 12-26 | 16-30 |
350 | 860 | 470 | 340 | 1025 | 696 | 640 | 505 | 520 | 555 | 460 | 470 | 490 | 430 | 430 | 448 | 16-22 | 16-26 | 16-33 |
400 | 960 | 480 | 360 | 1080 | 735 | 715 | 565 | 580 | 620 | 515 | 525 | 550 | 482 | 482 | 503 | 16-26 | 16-30 | 16-36 |
450 | 1075 | 530 | 395 | 1030 | 610 | 780 | 615 | 640 | 670 | 565 | 585 | 600 | 532 | 550 | 548 | 20-26 | 20-30 | 20-36 |
500 | 1075 | 580 | 420 | 1135 | 665 | 830 | 670 | 715 | 730 | 620 | 650 | 660 | 585 | 585 | 609 | 20-26 | 20-33 | 20-36 |
600 | 1230 | 600 | 445 | 1270 | 725 | 920 | 780 | 840 | 845 | 725 | 770 | 770 | 685 | 685 | 720 | 20-30 | 20-36 | 20-39 |
700 | 1650 | 730 | 495 | 1460 | 865 | 980 | 895 | 910 | 960 | 840 | 840 | 875 | 800 | 800 | 820 | 24-30 | 24-36 | 24-42 |
800 | 1750 | 830 | 530 | 1640 | 925 | 1050 | 1015 | 1025 | 1085 | 950 | 950 | 990 | 905 | 905 | 928 | 24-33 | 24-39 | 24-48 |
安装示意图
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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