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[China]
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oepoch industrial technology |
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Industrial hydraulic type S-L1X check valve large size large flow 15000L/s sub-plate/flange
Function and configuration
The check valve type S permits free flow in onedirection and
closure in opposite direction withleakage.
It basically comprises of the housing (1), poppet(2) compression
spring (3) and the spring seat(4).The stroke of the poppet (2),
which is guided on
its outside diameter, is limited by a mechanicalstop----the spring
seat(4). The built-in compressionspring (3) supports the closing
movement. The
compression spring(3) holds the poppet (2) in theclosed position
even when there is no flow throughthe valve.
When fluid flows through the valve in the opendirection, the poppet
(2) lifts due to the fluidpressure. In the opposite direction the
compression spring (3) and the fluid presses the poppet (2) onto
its seat (4) and thus closes the connection. For check valves
without spring, the fixed position should ensure that the poppet
can locate itself closed under its gravity.
Specification
Technical data
| Max. operating pressure | bar | 315 | |||||
| Crack pressure | bar | Refer to the characteristic curve | |||||
| Max. flow -rate | L/min | Refer to the characteristic curve | |||||
| Viscosity range | mm2/s | 2.8 to 500 | |||||
| Fluid temperature range | ℃ | -30 to +80 (NBR seal) | |||||
| -20 to +80 (FKM seal) | |||||||
| Fluid | Mineral oil suit for NBR and FKM seal | ||||||
| Phosphate ester for FKM seal | |||||||
| Degree of contamination | Maximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406 | ||||||
| Size | 52 | 62 | 82 | 102 | 125 | 150 | |
| All flange connections | LC455 | ||||||
Unit dimensions: sub-plate mounting
Unit dimensions: flange connection sizes 52 to 102
Unit dimensions: flange connection sizes 125 to 150
