- Contact Person : Mr. Hao Dehong
- Company Name : Dalian Gongdao Trading Co., Ltd.
- Tel : 86-411-82766443
- Fax : 86-411-82766457
- Address : Liaoning,Dalian,No.2 1st Floor, Unit 1, No. 97 Binhai Garden, Zhongshan District
- Country/Region : China
- Zip : 116001
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FEATURES
No water hammer, reaction time of disc is very quick and it is closed with the spring tensionbefore the reverse flow activated.
Design is simple and easy for repair.By-pass valve installed to the body easily drains the water in case of repair/replacement.Rubber packing ensures the tight sealing and it is simple to replace.Horizontal and vertical installation is applicable. In case of horizontal installation of largediameter valves, it is necessary to use supports.
Standard flange ends conform to KS but we can meet buyer's flange ends requirement.Body material can be Cast Steel, Bronze and SUS, ect. Depending on the fluid to be used, temparatureand pressure.
SPECIFICATION
DIAMETER | 40A(1 ½ '')- 600A(24'') |
APPLICABLE PRESSURE | 10K-40K 150LB-300LB |
CONNECTING ENDS | FLANGE TYPE |
FLUIDS TO BE USED | WATER, AIR,GAS AND OIL |
APPLICABLE TEMPERATURE | UNDER 100°C |
DIMENSIONS(10K, 20K)
SIZE | Ø D | 10K(L) | 20K(L) |
40A | 40 | 168 | 170 |
50A | 50 | 182 | 184 |
65A | 65 | 194 | 200 |
80A | 80 | 210 | 218 |
100A | 100 | 218 | 220 |
125A | 125 | 263 | 263 |
150A | 150 | 288 | 291 |
200A | 200 | 407 | 420 |
250A | 250 | 460 | 480 |
300A | 300 | 600 | 600 |
DESCRIPTION OF PARTS
NO | NAME | MATERIAL | Q'TY | ||
1 | BODY | SCS13 | SCS14 | 1 | |
2 | TOP GUIDE | SCS13 | SCS14 | 1 | |
3 | BUFFER RING | SCS13 | SCS14 | 1 | |
4 | STEM | STS304 | STS316 | 1 | |
5 | DISC | SCS13 | SCS14 | 1 | |
6 | BOTTOM GUIDE | SCS13 | SCS14 | 1 | |
7 | SPRING | STS316 WPA | 1 | ||
8 | DISC SEAT | RUETHANE,NBR, PTFE | 1 | ||
9 | BY PASS VALVE | STS 304 | STS 316 | 1 |
ADVANTAGE
Ø Face-to-face dimensions for Dual Plate Wafer Check Valves are about one fourth of a Swing Check Valve.
Ø Weight is as little as about 20%of the corresponding Swing Check Valve due to the compact design.
Ø Dual Plate Wafer Check Valves have a spring design to close valves more efficiently when the backflow occurs to
reduce the water hammer.
Ø These valves have the lower pressure drop than Swing Check Valves because of little friction resistance.
Ø Dual Plate Wafer Check Valves are less expensive than Swing Check Valves because of the lightness and compact design.
These valves are also easier and less expensive to install and maintain because of fewer piping supports and easy handling for installation.
Ø Because Dual Plate Wafer Check Valves are flangeless, they are installed between flanges.
Ø Normal installation method for horizontal flow is with the hinge pin in vertical position.
Ø Installation is available for both horizontal and vertical piping.
Smolensky Check Valve