3-way Type Diaphragm Valve
How to work the diaphragm valve
Its opening and closing part is a diaphragm made of soft material, which separates the inner cavity of the valve body from the inner cavity of the valve cover and the driving parts. The diaphragm valve is an elastic, disturbable diaphragm, which is connected to the compression part with bolts. The compression part is operated by the valve stem to move up and down. When the compression part rises, the diaphragm is lifted high, which creates a passage. When descending, the diaphragm presses on the valve body weir (if it is a weir valve) or the bottom of the contour (if it is a straight-through type). The diaphragm valve is suitable for switching and throttling.
Quick details of three way item diaphragm valve
| Size | DN25-DN80 |
| Pressure | 1.0MPa |
| Drive mode | Handwheel, electric |
| Structure | three-way |
| Main material | WCB,SS,DI |
| Collection | Flange |
| Seal material | same as body |
| Applicable temperature: | ≤85℃, ≤100℃, ≤120℃, ≤150℃ |
| Usage | Fluid pipe |
Material of three way structured diaphragm valve
Body: cast iron, ductile iron, carbon steel, stainless steel
Valve cover: cast iron, ductile iron, carbon steel, stainless steel
Lining: rubber
Diaphragm: Rubber
Disc: cast iron
Stem: carbon steel, stainless steel
Handwheel: cast iron
Test of three-way design diaphragm valve
Lining: electric spark test
Test and inspection according to GB/T13297 standard
Nominal pressure: Pn (MPa)
Body: PN x 1.5
Seal: PN x 1.1
| DN | PN | Working pressure | L | D | D1 | n-φd | F | H1 | H2 | D0 | WT |
| mm | MPa | MPa | （mm） | （mm） | （mm） | （mm） | （mm） | （mm） | （mm） | （mm） | |
| 25 | 1.0 | 1.0 | 160 | 96 | 115 | 85 | 4-14 | 108 | 120 | 66 | 5.5 |
| 32 | 180 | 118 | 135 | 100 | 4-18 | 138 | 157 | 96 | 8.5 | ||
| 40 | 200 | 135 | 145 | 110 | 4-18 | 147 | 167 | 96 | 12.5 | ||
| 50 | 230 | 150 | 160 | 125 | 4-18 | 167 | 192 | 96 | 17 | ||
| 65 | 290 | 182 | 180 | 145 | 4-18 | 194 | 229 | 165 | 24.5 | ||
| 80 | 310 | 210 | 195 | 160 | 4-18 | 212 | 252 | 230 | 33.5 |
FAQ
1.Is sample order acceptable?
Sure, we accept it.
2.How to place the order?
Kindly send me your official order by mail. After checking all the details, we would proceed production.
3.How long the valves could be ready to be shipped?
For standard valves, we can send out 7 days after payment. For the production items, depends on the qty and item, usually 20-30 days.
4 . How do make the payment?
T/T, L/C etc.
5.How will make the shipment?
By Sea Shippment, By Air, Express Service. You could nominate forwarder.
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