Weir Type Diaphragm Valve
Description & Features
The weir type diaphragm valve has its two ports in line with each other on the opposite sides of the valve, whereas the weir type has the in/out ports located at a 90 degree angle from one another. The weir type is the most common in process applications and more commonly used as a tank bottom valve.
● It can sustain any corrosive medium in addition to the molten alkali metals and fluorine elements. It is ideal products used in chlor-alkali, industrial in organic chemicals, metal and mining, nitrogen and phosphatic fertilizers, petroleum refining, pharmaceutical etc.
● It is not applicable for diaphragm used in medium with hard particles, which will cause diaphragm damage and leakage.
● The working temperature cannot exceed the specified range.
● Open the diaphragm too frequent will influence the sealing performance.
Specifications
Size Range | Body Material |
1/2"-16" DN15-DN400 | Cast Iron, WCB, CF8, CF8M |
Pressure Rating | Disc Material |
Class150 PN10-PN16 | Cast Iron, WCB, SS304, SS316 |
End Connection | Diaphragm Material |
Flange (FF, RF), BSPT, NPT | NR, PTFE, FEP, PFA |
Structure Style | Lined Material |
Weir pattern | NR, PTFE, FEP, PFA |
Actuator Options | Design Standard |
Manual, Pneumatic, Electric | GB 12239, BS5156 |
Temperature Range | Face to Face Standard |
-20℃~180℃ | JB 1688, GB/T 12221, BS 5156 |
Connection Standard | Test Standard |
Flange Drilling: GB4216, JB78, BS 4504, ANSI B 16.5 | API 598, JB/T 9092, GB/T 13927 |
Brand | DAGO or OEM |
Test | 100% quantity tested before delivery |
Guarantee | 12 months from date of shipment or Negotiable |
MOQ | 1 Set |
Sample | Available |
Color | Customer required or manufacturer default |
Packing | Plastic bag wrapped inside, seaworthy wooden case outside |
Certificate | API6D, CE, TUV, ISO9001, ISO14001, ISO45001, Mill Test Certificate |
Country of Origin | Zhejiang, China |
HS Code | 848180 (universal), 8481804090 (China) |
Port | Shanghai or Ningbo |
Payment Terms | T/T, L/C, Western Union |
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