{"title":"Siemens VKP Proportioning Gas Valves","description":"\u003ch2\u003eSiemens VKP Proportioning Gas Valves\u003c\/h2\u003e\n\u003cp\u003eSiemens VKP valves are proportioning gas valves designed for precise modulation and continuous control of gas flow in industrial combustion systems. They are specified in applications where variable gas flow is required, rather than simple ON\/OFF shut-off.\u003c\/p\u003e\n\u003cp\u003eVKP valves are used as control elements within a gas train, supporting stable combustion and accurate gas–air ratio control in conjunction with the wider combustion control system.\u003c\/p\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProportional gas flow control\u003c\/li\u003e\n\u003cli\u003eCombustion systems requiring continuous modulation\u003c\/li\u003e\n\u003cli\u003eRatio-controlled industrial burners\u003c\/li\u003e\n\u003cli\u003eGas trains incorporating separate safety shut-off valves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eValve Function and System Role\u003c\/h3\u003e\n\u003cp\u003eSiemens VKP valves are designed to regulate gas flow proportionally in response to control signals from the combustion management system. Unlike safety shut-off valves, VKP valves are not intended to provide primary gas isolation.\u003c\/p\u003e\n\u003cp\u003eFor this reason, VKP valves are typically installed downstream of dedicated safety shut-off valves such as Siemens VGG or VGD valve bodies. This separation of safety and control functions supports safe and stable system operation.\u003c\/p\u003e\n\u003ch3\u003eIntegration with Siemens Combustion Systems\u003c\/h3\u003e\n\u003cp\u003eVKP proportioning valves are commonly used as part of integrated Siemens combustion systems, working alongside safety shut-off valves, SKP actuators, pressure switches, and burner management controls.\u003c\/p\u003e\n\u003cp\u003eCorrect system design ensures that safety shut-off and modulation functions are handled by the appropriate components within the gas train.\u003c\/p\u003e\n\u003ch3\u003eAvailable Valve Sizes and Specifications\u003c\/h3\u003e\n\u003cp\u003eSiemens VKP valves are available in a range of sizes and configurations to suit different industrial combustion requirements. Detailed technical specifications for each VKP valve model are provided within the individual product listings below.\u003c\/p\u003e\n\u003ch3\u003eSelection and Replacement Guidance\u003c\/h3\u003e\n\u003cp\u003eWhen selecting or replacing a Siemens VKP valve, the required control range, valve size, and system compatibility must be confirmed to ensure correct operation.\u003c\/p\u003e\n\u003cp\u003eIf you are unsure whether a VKP proportioning valve is suitable for your application, or if a different Siemens valve type is required, technical confirmation is recommended before ordering.\u003c\/p\u003e","products":[{"product_id":"siemens-vkp40-15-proportional-controlling-eleme","title":"Siemens VKP40.15 Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 1\/2\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 15\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e1\/2\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e11\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579714498814,"sku":"SPA2011","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP.png?v=1753851890"},{"product_id":"siemens-vkp40-20-proportional-controlling-eleme","title":"Siemens VKP40.20 Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 3\/4\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 20\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e3\/4\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e20\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579714564350,"sku":"SPA2009","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP_1142e7b8-5202-4ed7-abd0-874e1e4c99e3.png?v=1753851889"},{"product_id":"siemens-vkp40-25-proportional-controlling-eleme","title":"Siemens VKP40.25 Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 1\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 25\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e1\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e28\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579715088638,"sku":"SPA2010","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP_cf85614d-f1c2-4b79-b08d-b60b33dbce71.png?v=1753851888"},{"product_id":"siemens-vkp40-32-proportional-controlling-eleme","title":"Siemens VKP40.32 Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 1 1\/4\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 30\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e1 1\/4\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e50\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579715154174,"sku":"SPA2012","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP_23a16909-8c10-4ee8-95ae-a4b082f50430.png?v=1753851887"},{"product_id":"siemens-vkp40-40-proportional-controlling-eleme","title":"Siemens VKP40.40 Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 1 1\/2\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e1 1\/2\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e69\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579715186942,"sku":"SPA2013","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP_4258f166-2445-45ee-8292-62803005651b.png?v=1753851886"},{"product_id":"siemens-vkp40-50-proportional-controlling-eleme","title":"Siemens VKP40.50 Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 2\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 50\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e2\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e88\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579715219710,"sku":"SPA2014","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP_4b6c3600-2838-4775-bbad-440970e85b4f.png?v=1753851885"},{"product_id":"siemens-vkp40-50h-proportional-controlling-eleme","title":"Siemens VKP40.50H Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 2\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 50 H\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e2\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e200\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579715252478,"sku":"SPA2015","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP_50238f22-3b6d-462b-bf26-15e7d60f5f94.png?v=1753851884"},{"product_id":"siemens-vkp40-50s-proportional-controlling-eleme","title":"Siemens VKP40.50S Proportional Controlling Element","description":"\u003cp\u003eProportional controlling element designed for fitting between counter-flanges, for\u003cbr\u003eintegration into gas trains.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWide modulation range\u003c\/li\u003e\n \u003cli\u003eFlanged connections 2\"\u003c\/li\u003e\n \u003cli\u003eAngular rotation 90°\u003c\/li\u003e\n \u003cli\u003eSuited for use with gases of families I...III and air\u003c\/li\u003e\n \u003cli\u003eFor use with actuators \u003ca title=\"Siemens Actuators\" href=\"https:\/\/comtherm.co.uk\/collections\/damper-motors-servos?filter.p.vendor=Siemens\"\u003eSQN13, SQN30, SQN72, SQM33, SQM4 or SQM5\u003c\/a\u003e\n \u003c\/li\u003e\n \u003cli\u003eCan be attached to \u003ca title=\"Siemens VGD\" href=\"https:\/\/comtherm.co.uk\/collections\/siemens-vgd\"\u003eVGD2 \u003c\/a\u003edouble gas valves\u003cstrong\u003e\u003c\/strong\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eSpecifications\u003c\/h3\u003e\n \u003cp\u003e\u003cstrong\u003eHousing Size:\u003c\/strong\u003e DN40\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eNominal Size Of Built In Rotational Cylinder:\u003c\/strong\u003e 50 S\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAvailable Flange Sizes (AGF10): \u003c\/strong\u003e2\"\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eAir-volumetric flow m³\/h at ˆ p 1 kPa when fully open: \u003c\/strong\u003e270\u003c\/p\u003e\n \u003cp\u003e \u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eOption when used in connection with burner management system LMV2\/LMV3\u003c\/strong\u003e\u003c\/p\u003e\n \u003cp\u003eA screw can be fitted to provide a mechanical stop either at an angular position of\u003cbr\u003eapprox. -5° (fully closed) or approx. 100° (fully open). The VKP40 is supplied with the\u003cbr\u003emechanical stop at -5°. Depending on the position of the stop, the reference travel\u003cbr\u003e(LMV2\/LMV3 parameters) predefined for the relevant actuator is prevented. Incorrectly\u003cbr\u003efitted \/ connected or interchanged air or gas actuators can be detected.\u003c\/p\u003e\n \u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/Screenshot_2025-01-21_120217_600x600.png?v=1737460955\" alt=\"\" style=\"margin: 10px 10px 10px 10px; float: none;\"\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":44579715285246,"sku":"SPA2016","price":242.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/files\/SiemensVKP_2bbcc6c3-b600-4486-90db-fc6a0577f1e6.png?v=1753851883"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/4028\/9022\/collections\/SiemensVKP.png?v=1768499783","url":"https:\/\/comtherm-shop.myshopify.com\/zh-cn\/collections\/siemens-vkp-proportioning-gas-valves.oembed","provider":"Comtherm Ltd","version":"1.0","type":"link"}