The check valves type” WS” are valves with threaded “BSP” ports for mounting in-line on hydraulic lines in any position.
They allow the flow to pass freely in one direction, blocking it in the opposite direction.
In rest conditions, the valve poppet is kept closed by a spring. Fluid flowing through the valve overcomes the resistance of the spring and causes the poppet to lift. This allows free flow. In the opposite direction the spring and the fluid push the poppet into the seat in the housing and close the connection.
MAX OPERATING PRESSURE: 315 bar
CRACKING PRESSURE: 0,5 ÷ 3 BAR
WORKING TEMPERATURE: : -30 ÷ +80 °C
HYDRAULIC FLUID: mineral oil HL or HM FLUID VISCOSITY RANGE: 10 ÷ 400 cSt
RECOMMENDED VISCOSITY: 36 cSt
FLUID CONTAMINATION DEGREE: class 20/18/15 according to ISO 4406/99
MATERIAL: phosphating carbon steel or galvanized carbon steel in compliance to directive 2002/95/CE (RoHS) for resist to the corrosion.
FLOW RATE: 25 ÷ 650 l/min see table 12.4e
CONNECTIONS: 1/4” ÷ 1”1/2 BSP
WEIGHT: see table 12.4d