{"product_id":"ha791-minihelic-r-ii-differential-pressure-gauge","title":"HA791-Minihelic® II Differential Pressure Gauge","description":"\u003cul\u003e\n\u003cli\u003eHousing is molded from strong mineral and glass filled nylon\u003c\/li\u003e\n\u003cli\u003ePointer stops of molded rubber prevent pointer over-travel without damage\u003c\/li\u003e\n\u003cli\u003eFull view lens is removable\u003c\/li\u003e\n\u003cli\u003ePrecision litho-printed scale is accurate and easy to read\u003c\/li\u003e\n\u003cli\u003eRed tipped pointer of heat treated aluminum tubing is easy to see\u003c\/li\u003e\n\u003cli\u003e\"Wishbone\" assembly provides mounting for helix, helix bearings and pointer shaft\u003c\/li\u003e\n\u003cli\u003eJewel bearings provide virtually friction-free motion for helix\u003c\/li\u003e\n\u003cli\u003eHelix is free to rotate in jewel bearings and aligns with magnetic field of magnet to transmit pressure indications to pointer\u003c\/li\u003e\n\u003cli\u003eZero adjustment screw, located behind the removable lens, eliminates tampering\u003c\/li\u003e\n\u003cli\u003eRange spring calibration clamp fixes live length of spring for proper gauge calibration and is factory set and sealed\u003c\/li\u003e\n\u003cli\u003eSilicone rubber diaphragm allows accurate response to a broad range of temperatures at extremely low pressure and incorporates blow out area for overpressure protection\u003c\/li\u003e\n\u003cli\u003eDiaphragm support plates of lightweight aluminum on each side of the diaphragm minimize position or attitude sensitivity and help define pressure area\u003c\/li\u003e\n\u003cli\u003eFlat leaf range spring reacts to pressure on the diaphragm\u003c\/li\u003e\n\u003cli\u003eLow pressure tap connects to rear chamber\u003c\/li\u003e\n\u003cli\u003eCoil spring link provides a resilient connection between the diaphragm and the range spring\u003c\/li\u003e\n\u003cli\u003eCeramic magnet mounted on a molded bracket at the end of the range spring rotates the helix without direct mechanical linkage\u003c\/li\u003e\n\u003cli\u003eHigh pressure tap connects with the front chamber through passageway in the plastic case and a sealing ring molded into the edge of the diaphragm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDial Diameter: 2-1\/16\"\u003c\/li\u003e\n\u003cli\u003ePressure Range: 0 - 5 in. w.c.\u003c\/li\u003e\n\u003cli\u003eConnection: Panel Mount\u003c\/li\u003e\n\u003cli\u003eDial Type: Analogue\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAdditional Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLens Material: Acrylic\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dwyer","offers":[{"title":"Default Title","offer_id":51305535865125,"sku":"HA791","price":105.77,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0869\/2665\/5781\/files\/ha788_lr_ven_4b7306fa-32e9-47cb-b726-20b43148e11f.jpg?v=1759455820","url":"https:\/\/tgstore.ca\/products\/ha791-minihelic-r-ii-differential-pressure-gauge","provider":"TG Store","version":"1.0","type":"link"}