2WPS Pressure Switch
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Description & Features: • • Diaphragm Actuated: 2 to 300 PSI Bellows Actuated: 10 to 3000 PSI Can be supplied with 1 SPDT electric switch or 2 SPDT electric switches that are independently adjusted Can be supplied with no housing or enclosed in a rugged die cast NEMA 4X, 12 and 13 housing. With the cover of the enclosure removed, the terminals of the electric switch(es) and pressure adjustment(s) are exposed for easy wiring and adjustment of the pressure setting Field adjustable set points Diecast cover is equipped with captive stainless steel screws that retain the cover gasket when the cover is removed. A useful feature of the single switch enclosed model is a calibrated pressure adjustment that aligns with a numerical pressure indicating scale showing the set point range 1 year warranty Common applications include: tank and compressor level and precision control, hydraulic systems, pumping controls and hazardous area lift station controls Specifications Housing Diecast aluminum Switches /4” NPT female standard /2” NPT male available Pressure Connection Electrical Connection Port Material Installation Notes Orientation - The 2WPS Diaphragm Actuated will operate satisfactorily in any position. However, mounting the device vertically will allow the easiest adjustability and reduce sediment in the pressure chamber. Wiring - Switches may be wired to 'normally open' or 'normally closed' terminals on electric switch(es). Single switch units have screw terminals while dual switch versions use a terminal block. Pressure Connection - 1/4" NPT female is standard. 1 /2" NPT male is available. Diaphragm Actuated: Brass Bellow Actuated: SS with silver braze Diaphragm Material Buna N, Teflon® protected, Viton® Contact Ratings Screw type, field adjustable No. of Contacts Maximum Ambient Temperature Minimum Ambient Temperature One or Two SPDT Diaphragm Actuated: 180°F (82°C) Bellows Actuated: 180°F (82°C) Diaphragm Actuated: -20°F (-29°C) Bellows Actuated: -40°F (-40°C) Adjustment - Turn pressure adjustment nut(s) clockwise to increase setpoint. Detailed installation and calibration instructions are provided for every shipment. Settings adjustment is available at no charge. Teflon® is a registered trademark of Dupont Corporation Viton® is a registered trademark of DuPont Performance Elastomers WINTERS INSTRUMENTS

Diaphragm Actuated Bellows Actuated Type 1 Low Deadband - Use 72 Type 2 table values Type 2 Std. Deadband - Use table values Type 3 High DC Rated - Multiply Type 2 table values by two Type 5 Sub Miniature - 2 SPDT - Use Type 5 table values Type 6 Gold Contact - Use Type 2 table values Diaphragm Actuated Bellows Actuated Series Number (how to order) ^MTG. BRACKET BELLOWS ASSEMBLY - MODEL SERIES NUMBER OF ELECTRIC SWITCHES - 2 - TWO S.P.D.T. - (SWITCH TYPE "5" ONLY) SENSING ELEMENT - B - BELLOWS SENSING ELEMENT (STANDARD) TYPE OF ELECTRIC SWITCHES 3 - HIGH DC RATED (MAGNETIC BLOWOUT) 5 - SUB...