Detailed Product Description
| Pressure: |
Lower Pressure |
Body: |
DI /CS / WCB / SS |
| Standard: |
API / DIN / BS / EN / ISO / JIS |
Seat: |
EPDM / Bronze / SS |
| Size: |
DN300 ~ DN3000 |
Application: |
Domestic Sewage / Seawater / River Water |
| High Light: |
swing type check valve , swing type non return valve |
Lower Pressure Swing Check Valve For Domestic Sewage / Seawater / River Water
Notice: the nominal diameters DNand flange bolt hole distance D1,hole number, hole diameter etc.
In this table can be designed based on the demand of the customer.
Take * number specification for non-standard products.
| 1.Caliber side: round DN300mm~2000mm square 300mm~3000mm |
| 2.Working medium: with a ph of industrial, domestic sewage, seawater, river water, with a weak acid alkali industry, domestic sewage, seawater |
| 3.Working temperature : ≤60°C, and according to use requirement , the maximum temperature resistance of flap valve can be designed to reach 100°C |
| 4.Working pressure : normal pressure to 0.25Mpa |
| 5.Seal type :lip-shape seal , hollow round pipe seal |
| 6.Open angle of flap valve cover : ＞75° |
| 7.Open when the water level inside flap valve cover is higher than outside water level by 50mm~250mm ( related to flap valve obliquity , weight and caliber size ) , and it can be designed according to the demand of the customer. |
| 8.hardness : ≥40 |
| 9.Specific gravity: 1.6~1.9 |
| 10.Use life: more than thirty years |
Swing Check Valve Application:
Valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the result of opening and closing automatically.
When the medium is back-going, valve disc will automaticaly closed to avoid accidents.
| material: |
|
|
|
| NO |
parts |
qty |
material |
| 1 |
body |
1 |
316 |
| 2 |
O-ring |
2 |
EPDM |
| 3 |
disc |
1 |
316 |
| 4 |
O-ring |
1 |
EPDM |
| 5 |
eye bol |
1 |
316 |
| 6 |
small cover |
2 |
316 |
| 7 |
pin |
1 |
316 |
| 8 |
retainer screw |
2 |
316 |
| 9 |
big cover |
2 |
316 |
| 10 |
bolt |
2 |
316 |
| 11 |
spring |
1 |
316 |
| Specification |
|
|
|
|
|
| 1 |
Face to face according to DIN3202-K3. |
| 2 |
Flange drilling according to ANSI125/150;DIN2501PN10/PN16;AS2129 Table E;JIS10K ect. |
| 3 |
Working Pressure: PN10;PN16 |
| Main Parts and Materials |
| Number |
Part Name |
Material |
| 1 |
Body |
GGG50 |
| 2 |
Disc |
SS304 |
| 3 |
Stem |
SS304 |
| 4 |
Spring |
SS304 |
| 5 |
Washer |
PTFE |
| 6 |
Washer |
PTFE |
| 7 |
Gasket |
NBR |
| 8 |
Hex nut |
A193A |
Standards:
Design and manufacture as BS1868, ANSI B16.34
Face to face dimensions as ANSI B16.10
End flange dimension as ANSI B16.5
Pressure-temperature ratings as ANSI B16.34
Pressure test as API 598
Applicable Medium: water ,gas,oil,and other causticity medium
