Inch Size Weld Non-return Valve
Semi-conductor, pharmaceutical, Bio-technology, food processing, structural engineering
Everfit Technology CO., LTD. (EFT) is one of the stainless steel pipe fittings manufacturers based in Taiwan with over 36 years of experience. EFT provides 316, 316Ti stainless steel pipe fittings, pipe reducer, eccentric pipe reducer, vacuum pump, valve actuator - ISO, EN11435, DNV, TSSA CRN, BPE, 3-A SSI certified.
Inch Size Weld Non-return Valve | Inch Size Weld Non-return Valve
Flow direction Fig.3. Show the optimal built-in situation. Other positions permitted are e.g. horizonal. The four guide legs of the valve cone ensures good alignment.
Pressure drop/capacity diagram Fig.2 NOTE For the following applies: Medium:Water(20°C) Measurement:In accordance with VDI 2173
Inch Size Weld Non-return Valve
Designation
| NO | NAME |
|---|---|
| 1 | Body |
| 2 | Disc |
| 3 | Seal Ring |
| 4 | Spring |
| 5 | Plate |
| 6 | Ring |
| 7 | Clamp |
Technical Date
- Required differential pressure for opening the valve when fitted in a vertical pipe, as shown in fig.3, is approx. 6kpa(0.06bar).
- Max. product pressure: 1000kpa(10bar).
- Max. temperature: 140°C(EPDM).
- Min. temperature: -10°C.
Materials
- Steel parts: Stainless steel AISI 304 or acid-resistant steel AISI 316l.
- Seal ring: EPDM rubber.
- Finish: Semi bright.
Connections
-
The valve is available with welding ends for
tubes according to 3A,SMS,BS,DIN 11850.
Options
- Material grades
- A) Product wetted seal rings of nitrile(NBR) or Fluorinated rubber (FPM).
Ordering
- Please state the following when ordering:
- Size.
- Steel garde, AISI 304 or AISI 316L.
- Rubber garde if not EPDM.
Specification
Inch Size Weld Non-return Valve
| Size | ID mm |
OD mm |
L1 mm |
L2 mm |
|---|---|---|---|---|
| 1/2" | 9.5 | 12.7 | 30 | 45 |
| 3/4" | 15.8 | 19.05 | 30 | 45 |
| 1.0" | 22.1 | 25.4 | 23.5 | 35 |
| 1.5" | 34.8 | 38.1 | 28.5 | 45 |
| 2.0" | 47.5 | 50.8 | 28.5 | 45 |
| 2.5" | 60.3 | 63.5 | 28.5 | 45 |
| 3.0" | 72.9 | 76.2 | 28.5 | 45 |
| 4.0" | 97.6 | 101.6 | 42 | 75 |
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