Water seal gate valve
- sell:021-32051999
- sell:021-32050777
- fax:021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
The water-sealed gate valve is suitable for opening and closing the pipelines with nominal pressure of 100 MPa and working temperature of 425 C. The working medium is water, steam, oil and non-corrosive gas. It is especially suitable for vacuum condensing system of steam turbine in thermal power plant.
Product features of water seal gate valves
1, S/Z series adopt double gate two-way elastic seal, open and close flexible, fast and reliable sealing.
2, the product structure is simple, compact and reasonable, convenient maintenance, long service life.
3. For the opening and closing device on the pipeline, it must be in full open or full closed state, and can not be used to regulate the flow rate.
4, the valve connection way has flange and welding two kinds, the drive way is manual and electric.
Standard Specification for water sealed gate valves
Design and manufacture: GB12234
Flange size: GB9113 JB7490
Pressure temperature: JB/T74 GB9131
Structure length: GB/T12221
Butt welding joint size: -
Inspection and testing: JB/T9092 GB13927
Main performance parameters of water seal gate valves
Nominal pressure(MPa) | ||||||
Shell strength test | 1.0 | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 |
Seal test | 1.5 | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 |
Sealing test | 1.1 | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 |
Airtight test | 1.1 | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 |
Scope of application | ||||||
product type | (℃) | Applicable medium | ||||
Carbon steel type | ≤425 | Water, steam, oil and non corrosive gases | ||||
Alloy type | ≤540 | |||||


Main dimensions of water seal gate valves
DS/Z64H-16, 25 DS/Z64Y-16I and 25I water seal gate valves
Nominal path
DN/mm | L | α | H | DO | PNl.6/MPa | PN2.5/MPa | ||
D | D1 | D | D1 | |||||
50 | 250 | 37o30' | 334 | 250 | 58 | 50 | 64 | 4g |
65 | 270 | 37o30' | 439 | 250 | 75 | 65 | 82 | 67 |
80 | 280 | 37o30' | 495 | 300 | 91 | 79 | 95 | 77 |
100 | 300 | 37o30' | 575 | 350 | 11O | 97 | 117 | 101 |
125 | 325 | 37o30' | 587 | 350 | 136 | 121 | 144 | 126 |
150 | 350 | 37o30' | 607 | 350 | 163 | 146 | 172 | 158 |
200 | 400 | 37o30' | 740 | 400 | 223 | 202 | 223 | 202 |
250 | 450 | 37o30' | 863 | 400 | 278 | 254 | 278 | 254 |
300 | 500 | 37o30' | 990 | 400 | 330 | 305 | 330 | 305 |
350 | 550 | 37o30' | 1137 | 500 | 382 | 352 | 382 | 352 |
400 | 600 | 37o30' | 1523 | 500 | 432 | 399 | 432 | 39g |
450 | 650 | 37o30' | 1618 | 600 | 485 | 451 | 485 | 451 |
500 | 700 | 37o30' | 1657 | 600 | 535 | 501 | 535 | 499 |
600 | 800 | 37o30' | 1746 | 700 | 636 | 601 | 636 | 599 |
Note: PN1.6 (16) valve is allowed to be selected as PN1.0 (10) pressure.
DS/Z64H-40, 64, 100 DS/Z64Y-40I, 64I and 100I water seal gate valves
公称通径
DN/mm | L | D | α | PN4.O/MPa | PN6.4/MPa | PNlO.0/MPa | ||||||
D1 | H | D0 | D1 | H | DO | D1 | H | D0 | ||||
50 | 250 | 64 | 37o30' | 49 | 345 | 300 | 50 | 350 | 300 | 49 | 350 | 300 |
65 | 270 | 83 | 37o30' | 67 | 441 | 300 | 66 | 447 | 300 | 64 | 447 | 300 |
80 | 280 | 96 | 37o30' | 79 | 495 | 350 | 77 | 499 | 350 | 75 | 499 | 350 |
100 | 300 | 117 | 37o30' | 101 | 575 | 350 | 99 | 582 | 400 | 87 | 582 | 400 |
125 | 325 | 144 | 37o30' | 126 | 587 | 400 | 129 | 590 | 400 | 125 | 590 | 400 |
150 | 350 | 172 | 37o30' | 152 | 607 | 400 | 150 | 611 | 450 | 145 | 611 | 450 |
200 | 400 | 223 | 37o30' | 200 | 740 | 450 | 198 | 745 | 550 | 190 | 747 | 550 |
250 | 450 | 278 | 37o30' | 252 | 863 | 550 | 246 | 867 | 650 | 236 | 869 | 650 |
300 | 500 | 330 | 37o30' | 302 | 1008 | 650 | 294 | 1008 | 750 | 282 | 1013 | 750 |
350 | 550 | 382 | 37o30' | 350 | 1142 | 750 | 342 | 1148 | 800 | 334 | 1148 | 850 |
400 | 650 | 432 | 37o30' | 397 | 1527 | 850 | 387 | 1531 | 900 | 377 | 1533 | 950 |
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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