Catalogue 9 - STAUFF Filtration Technology

54 www.stauff.com/9/en/#54 C Catalogue 9 § Edition 02/2023 Pressure Filters Dimensional drawings: All dimensions in mm/in. Clogging Indicators Product Description STAUFF Pressure Filters have a wide range of clogging indicators available. If no indicator is specified, the port is sealed by a plug (HI-O). The clogging indicators are actuated by the differential pressure (Δp) across the element. The special piston design minimizes the effects of peak pressures in the system. An optional thermal lockout (thermo-stop) is available to prevent false indication under cold start conditions. Fluid temperature have to be at least +20 °C / +68 °F for the indicator to function. Plug Type HI-O and visual Clogging Indicators Type HI-A and HI-V Technical Data Materials Body: Stainless Steel The visual clogging indicators are available in the following configurations: Manual reset: The indicator continues to display the clogged signal even through the Δp may have fallen. Pressing the plastic cover down will reset the indicator. Order Code a Type Clogging Indicator for Pressure Filters HI b Indicator Type c Thermostop Without thermostop none With thermostop T c Sealing Material NBR (Buna-N®) B FKM (Viton®) V EPDM E d Differential Pressure Setting (only HI-A and HI-V) 1,72 bar / 25 PSI B1.7 2,0 bar / 29 PSI B2.0 2,5 bar / 36.3 PSI B2.5 3,0 bar / 43.5 PSI B3.0 5,0 bar / 72.5 PSI (standard option) B5.0 7,0 bar / 101.5 PSI B7.0 Note: Bold types identify standard option e Design Code Only for information X Plug 0 Visual, automatic reset A Visual, manual reset V Electrical and Visual-electrical Clogging Indicators Type HI-E, HI-ED and HI-P Automatic reset: The clogged signal will disappear when the Δp drops below the setting for the indicator. Continued on page 55. G1/2 25,4 10,5 1.00 .41 1.00 25,4 G1/2 27 1.06 Visual red Pin HI-O HI-A / HI-V G Y(R) GND 1 2 3 4 G1/2 G1/2 1.00 25,4 87,5 3.45 1 4 2 3 GND 1 3 2 1.00 25,4 78 3.07 LED + Switch Switch G1/2 1.00 25,4 75 2.95 GND 1 3 2 Switch + HI-E HI-ED HI-P a b c fed HI - A - T - B - B5.0 / X