{"product_id":"stf-yk306-series-refrigeration-pressure-controller","title":"Shangheng STF YK Series Refrigeration Pressure Controls","description":"\u003ch3\u003e\u003cspan\u003ePRODUCT DESCRIPTION\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eShangheng STF YK Series mechanical pressure controls are manufactured by Shanghai Thermostat Factory Co., Ltd. for pressure control and pressure protection in refrigeration, air-conditioning, heat-pump and chiller systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the system pressure reaches the selected set point, the internal electrical switch changes state to control or protect the compressor and other refrigeration equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe range includes YK306 dual-pressure controls for combined high- and low-pressure monitoring, together with YK30 single-pressure controls. Automatic-reset and manual-reset configurations are available depending on the complete model suffix.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKEY FEATURES\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• Mechanical refrigeration pressure control\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Single- and dual-pressure configurations\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Adjustable pressure range and differential\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Automatic- and manual-reset versions available\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Suitable for compressor operating control and pressure protection\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Suitable for HFC and HCFC refrigerants, compressed air, water and oil\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Visible adjustment scale\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Compact enclosure with mounting bracket\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Maximum published voltage: 250 V AC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Maximum published switching current: 21 A\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAVAILABLE MODELS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOption Name: Model\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• YK306FSE\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• YK306FSSE\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• YK306FE\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• YK30FE\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eYK306 SERIES REFERENCE DATA\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eControl Type: Dual high- and low-pressure control\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLow-Pressure Side:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Pressure setting range: −0.065 to 0.6 MPa\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Adjustable differential: 0.06–0.4 MPa\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Reset type: Automatic\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Published setting point: 0.2–0.3 MPa\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Pressure Side:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Pressure setting range: 0.8–3.0 MPa\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Differential: 0.4 MPa, fixed\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Published setting point: 1.6–2.0 MPa\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Manual-reset configuration available depending on model\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eYK30 SERIES REFERENCE DATA\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eControl Type: Single-pressure control\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Pressure setting range: 0.5–3.0 MPa\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Adjustable differential: 0.2–0.7 MPa\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Published setting point: 2.0–2.5 MPa\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Reset configuration: Confirm according to the complete model suffix\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eGENERAL TECHNICAL DATA\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• Product type: Mechanical pressure control\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Suitable media: HFC and HCFC refrigerants, compressed air, water and oil\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Standard published connection: M12 × 1.25\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Medium temperature: −20°C to +120°C\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Ambient temperature: −20°C to +70°C\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Supply voltage: 125 V AC \/ 250 V AC\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Non-inductive current: 15 A \/ 15 A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Inductive continuous current: 3.5 A \/ 2.5 A\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Inductive transient current: 21 A \/ 15 A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specifications printed on the supplied product nameplate take precedence over general series data.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAPPLICATIONS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• Cold-room refrigeration systems\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Condensing units\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Water chillers\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Heat pumps\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Commercial air-conditioning systems\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Compressor high-pressure protection\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Compressor low-pressure protection\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Refrigeration operating control\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eORDERING INFORMATION\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePlease confirm the following before ordering:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Complete model number\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Required pressure range\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Single- or dual-pressure control\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Automatic- or manual-reset configuration\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Pressure connection type\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Electrical rating\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Controlled medium or refrigerant\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDifferent suffixes may indicate different reset arrangements, pressure connections or electrical configurations.\u003c\/span\u003e\u003c\/p\u003e","brand":"STF","offers":[{"title":"YK306FSE","offer_id":43922401624123,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"YK306FSSE","offer_id":43922401656891,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"YK306FE","offer_id":43922401689659,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"YK30FE","offer_id":43922401722427,"sku":null,"price":11.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/8920\/8123\/files\/2026-08-12_084157_961.png?v=1786496019","url":"https:\/\/xiaxuecoldroom.com\/products\/stf-yk306-series-refrigeration-pressure-controller","provider":"XIAXUE Refrigeration","version":"1.0","type":"link"}