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| Quantity: | |
|---|---|
ST-ZH0001
SHSUOTE
848190
1.Description.
Screw flange ball type check valve USES rubber cover rolling ball as disc, under the action of medium, can roll up and down on the integral slide of the valve body, so as to open or close the valve, good sealing performance, silencing type close, do not produce water hammer.The body adopts the full water flow channel, the flow rate is large, the resistance is small, the head loss is 50% smaller than the swing type, the horizontal or the vertical installation can be, can be used for cold water, hot water, industrial and domestic sewage pipe network, more suitable for diving sewage pump, the medium temperature is 0-80p.Can be installed at the outlet of the pump to prevent backflow and water hammer damage to the pump.
2.Main parts&material
| No. | Part | Material | Stardard |
| 1 | Body | Ductile Iron | DIN1693/BS EN1563 |
| 2 | Ball | WCB/lron+Rubber | ISO 4633 |
| 3 | Bolt | C45E/1045 | EN 10083-2/ASTM A29 |
| 4 | Nut | C45E/1045 | EN 10083-2/ASTM A29 |
| 5 | Bonnet Gasket | NBR | ISO4633 |
| 6 | Bonnet | Ductile Iron | DIN1693/BS EN1563 |
3.Features
01. the structure length is short, its structure length is only the traditional flange check valve 1/4~1/8
02. small size, light weight, its weight is only the traditional micro - resistance slow closing check valve 1/4~1/20
03. the disc closes quickly, the water hammer pressure is small
04. horizontal or vertical pipe can be used, easy to install
05. smooth flow channel, small fluid resistance
06. sensitive action, good sealing performance
07. Short travel of disc, low impact force of closing valve
08. the overall structure, simple and compact, beautiful shape
09. Long service life and high reliability
4.Execution standard
| Design standard | GB/T32290, EN1074-3 | |
| Flange connection standard | GB/T9113 | |
| Structural length standard | GB/T12221 /BS5153.ASME B16.1.DIN-F6 | |
| Flange drilling | GB/T17241.6 , EN1092-2, ASME B16.1/N16.42,AS4087 | |
| Inspection testing standard | GB/T13927, EN12266 | |
5.Technical parameters
| Nominal diameter | DN50~DN300 | |
| Nominal pressure | PN10/PN16/CL150 | |
| Operating temperature | 0°C~80°C | |
| Seal test | 1.25PN | |
| Shell test | 1.5PN | |
| Suitable medium | Water | |
6.Operating principle
Rubber ball in the ball cover for a short roll to achieve the opening and closing of the valve.When the pump starts, the water under the action of pressure punch open the rubber ball, make the rubber ball roll to the right side, from the conical body in the back of the valve body to fix its position, check valve open;After the pump is stopped, due to backwater pressure in the piping system, the rubber ball is forced to roll to the left front valve body to achieve the closure of check seal.
1.Description.
Screw flange ball type check valve USES rubber cover rolling ball as disc, under the action of medium, can roll up and down on the integral slide of the valve body, so as to open or close the valve, good sealing performance, silencing type close, do not produce water hammer.The body adopts the full water flow channel, the flow rate is large, the resistance is small, the head loss is 50% smaller than the swing type, the horizontal or the vertical installation can be, can be used for cold water, hot water, industrial and domestic sewage pipe network, more suitable for diving sewage pump, the medium temperature is 0-80p.Can be installed at the outlet of the pump to prevent backflow and water hammer damage to the pump.
2.Main parts&material
| No. | Part | Material | Stardard |
| 1 | Body | Ductile Iron | DIN1693/BS EN1563 |
| 2 | Ball | WCB/lron+Rubber | ISO 4633 |
| 3 | Bolt | C45E/1045 | EN 10083-2/ASTM A29 |
| 4 | Nut | C45E/1045 | EN 10083-2/ASTM A29 |
| 5 | Bonnet Gasket | NBR | ISO4633 |
| 6 | Bonnet | Ductile Iron | DIN1693/BS EN1563 |
3.Features
01. the structure length is short, its structure length is only the traditional flange check valve 1/4~1/8
02. small size, light weight, its weight is only the traditional micro - resistance slow closing check valve 1/4~1/20
03. the disc closes quickly, the water hammer pressure is small
04. horizontal or vertical pipe can be used, easy to install
05. smooth flow channel, small fluid resistance
06. sensitive action, good sealing performance
07. Short travel of disc, low impact force of closing valve
08. the overall structure, simple and compact, beautiful shape
09. Long service life and high reliability
4.Execution standard
| Design standard | GB/T32290, EN1074-3 | |
| Flange connection standard | GB/T9113 | |
| Structural length standard | GB/T12221 /BS5153.ASME B16.1.DIN-F6 | |
| Flange drilling | GB/T17241.6 , EN1092-2, ASME B16.1/N16.42,AS4087 | |
| Inspection testing standard | GB/T13927, EN12266 | |
5.Technical parameters
| Nominal diameter | DN50~DN300 | |
| Nominal pressure | PN10/PN16/CL150 | |
| Operating temperature | 0°C~80°C | |
| Seal test | 1.25PN | |
| Shell test | 1.5PN | |
| Suitable medium | Water | |
6.Operating principle
Rubber ball in the ball cover for a short roll to achieve the opening and closing of the valve.When the pump starts, the water under the action of pressure punch open the rubber ball, make the rubber ball roll to the right side, from the conical body in the back of the valve body to fix its position, check valve open;After the pump is stopped, due to backwater pressure in the piping system, the rubber ball is forced to roll to the left front valve body to achieve the closure of check seal.
