Catalogue 9 - STAUFF Filtration Technology

www.stauff.com/9/en/#53 C 53 Order Code Product Description (not available for SFZ) The optional valves are fitted as an insert in the filter head and incorporate the spigot on which the element seals. The valve is selected to suit the filter application. HVO Non-bypass standard insert without any valve function. Element collapse rating should be higher than the system pressure HVB Bypass valve which allows oil to bypass the element when the differential pressure across the element reaches 6 +0,5 bar / 87 +7.25 PSI. (Other pressure settings available on request). The opening pressure should be higher than the Δp setting of an optional clogging indicator. Low collapse 30 bar / 435 PSI Δp elements are normally used with this valve. HVR Reverse flow valve is used in systems where there is flow in reverse through the filter. It allows reverse flow without backflushing the element but does not filter in the reverse direction. Element collapse rating should be higher than the system pressure. Flow characteristics of the valves see page 56. HVO HVB HVR HVN HVM B A B A B A B A B A HVN Non-return valve This valve prevents the oil in the delivery line from draining out while the filter is being serviced. Because there is no bypass, the element collapse rating should be higher than system pressure. HVM Multi-function valve This valve combines the bypass, the reverse flow and the non-return functions in one unit. The by-pass opening pressure is 6 +0,5 bar / 87 +7.25 PSI Δp with other opening pressures available on request. The opening pressure should be higher than the Δp setting of an optional clogging indicator. Low collapse 30 bar / 435 PSI Δp elements are normally used with this valve. a Type Valve for Pressure Filters VALVE b Valve Type Non-bypass standard insert without any valve HV 0 Bypass valve HV B Reverse flow valve HVR Non-return valve HVN Multi-function valve HVM c Filter Group For filter size 014/030 014/030 For filter size 045/070/125 045/070 For filter size 090/160/250/300 0 90/160 d Design Code Only for information X Valves a b d c VALVE - HVB - 014/030 / X Catalogue 9 § Edition 02/2023 Pressure Filters Note: For high dynamic applications and applications with very high cycle numbers (pressure and volume flow) please contact STAUFF. The service life of HVM, HVR valves may be affected by high flows or fast/frequent load changes. For more information, please contact STAUFF.