{"product_id":"2-watson-mcdaniel-w94-05-08s15-c17u-self-operating-temperature-regulators-for-cooling-die-cast-aluminum-housing-75-165-f-temperature-indicating-dial-integral-union-with-npt","title":"2\" Watson McDaniel W94-05-08S15-C17U Self-Operating Temperature Regulators (For Cooling), Die-Cast Aluminum Housing, 75 - 165°F, Temperature Indicating Dial, Integral Union (With NPT)","description":"\u003ch2\u003eWatson McDaniel W94-05-08S15-C17U Self-Operating Temperature Regulators For Cooling, 75 - 165°F Indicating (2\" Integral Union With NPT)\u003c\/h2\u003e\u003ch2\u003eFeatures:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSelf-Operating (No External Power Source Required)\u003c\/li\u003e\n\u003cli\u003eTemperature Indicating \u0026amp; Non-Indicating models available.\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Die-Cast Aluminum Housing\u003c\/li\u003e\n\u003cli\u003e1\/2\" Thru 4\" Valve Sizes\u003c\/li\u003e\n\u003cli\u003eFully Enclosed Bellows\u003c\/li\u003e\n\u003cli\u003eTemperature Over-range protection spring to protect thermal system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOptions \u0026amp; Features (See Specification Sheet For Full List):\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eW94 Series For Cooling\u003c\/h2\u003e\u003cp\u003eThe W91\/W94 Self-Operating Temperature Regulator is a mechanically operated device designed to regulate system temperature by modulating the flow of a heating or cooling fluid in response to temperature changes; requires no external power source.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReverse-Acting:\u003c\/strong\u003e Normally Closed Valves are used for COOLING, The actuators are designed to move the valve stem open (In-To-Open) as the control signal (Temperature) increases.\u003c\/p\u003e\u003cp\u003eThe W91 \u0026amp; W94 Self-Operating Temperature Regulators are the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers. They require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment. The Actuator is noted for its rugged die-cast aluminum housing, fully-enclosed bellows assembly and internal over-temperature range protection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModel \u003cstrong\u003eW91 Non-Indicating\u003c\/strong\u003e (Without Indicating Dial) features a lower profile and should be specified where space constraints may be an issue.\u003c\/li\u003e\n\u003cli\u003eModel \u003cstrong\u003eW94 Temperature Indicating\u003c\/strong\u003e (With Indicating Dial) will allow the operator to verify the process temperature and to aid in temperature adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow It Works\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eW91\/W94\u003c\/strong\u003e Temperature Regulator is a fully self-contained unit requiring no external power source (i.e., compressed air or electricity). Regulation takes place when the sensing element (bulb) of the thermal system is exposed to changes in temperature. The thermal system is charged with a predetermined amount of vapor fill, which, when heated, will cause the bellows within the unit’s actuator housing to expand. The valve action is either In-To-Close for Heating or In-To-Open for Cooling.\u003c\/p\u003e\u003cp\u003eNormally Closed Valves are used for \u003cstrong\u003eCOOLING\u003c\/strong\u003e, so the valve stem opens (in-to-open) as the control signal (temperature) increases.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDouble-Seated Balanced Valves\u003c\/strong\u003e are used for Cooling Applications where larger flow rates of water are frequently required, and a small leakage rate through the valve is normally acceptable. Leakage rate can be up to 0.5% of the maximum valve capacity (Class II shut-off).\u003c\/p\u003e\u003ch2\u003eSelection \/ Sizing \/ Capacities\u003c\/h2\u003e\u003cdiv style=\"clear: both;\"\u003e\u003cp\u003e\u003cstrong\u003eActuator Selection:\u003c\/strong\u003e The recommended working span for W91 \u0026amp; W94 Actuators typically falls within the upper third of the nominal range. Single-Seat In-To-Close, all Double-Seat, and all 3-Way valves have a recommended working span in this part of the nominal range. Using the valve in the recommended working span improves temperature response time of the system.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e\u003cdiv class=\"tech\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"specs\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eModel\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eW94 (Temperature Indicating Dial)\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eService\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eWater, Steam, Other Liquids\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eSize\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e2\"\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eConnections\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eThreaded, Union Ends, 125# FLG, 150# FLG, 250# FLG (Optional)\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eSeat Material\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eStainless Steel\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eBody Material\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\n\u003cdiv\u003e1\/2\" - 2\": Stainless Steel (Class IV)\u003c\/div\u003e\n\u003cdiv\u003e1\/2\" - 2\": Bronze (Reverse-Acting Class II)\u003c\/div\u003e\n\u003cdiv\u003e1\/2\" - 4\": Cast Iron\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003eMax Inlet Pressure\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003e250 PSIG\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"left\"\u003ePart Number\u003c\/div\u003e\n\u003cdiv class=\"right\"\u003e\u003cdiv\u003eW94-05-08S15-C17U\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e\u003ch2\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0721\/4576\/4430\/files\/Watson-McDaniel-W94-Series-Direct-Operated-Temperature-Regulators-Cooling-Spec-Sheet.pdf?v=1786495779\"\u003eView Technical Specification Sheet Here\u003c\/a\u003e\u003c\/h2\u003e","brand":"Watson McDaniel","offers":[{"title":"Default Title","offer_id":44166230179918,"sku":"W94-05-08S15-C17U","price":3791.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/4576\/4430\/files\/Watson-McDaniel-W94-Series-Direct-Operated-Temperature-Regulators-Cooling__30082.1780311762.1280.1280.jpg?v=1786669308","url":"https:\/\/valveman.com\/products\/2-watson-mcdaniel-w94-05-08s15-c17u-self-operating-temperature-regulators-for-cooling-die-cast-aluminum-housing-75-165-f-temperature-indicating-dial-integral-union-with-npt","provider":"ValveMan","version":"1.0","type":"link"}