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Control valves S11T

Control valves S11T
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Control valve S11T Pilot burners ZTA, ZT 40 and ZTI 55 Product brochure · GB 9 Edition 01.12 Control valve S11T • Independent of mains power supply due to thermo-electric safeguarding • Installation facilitated by pilot gas connection on both sides • Available with contact switch for ignition with electrode • Control valve S11T..R15 suitable for gas inlet pressures up to 1.5 bar Pilot burners ZTA, ZT 40 and ZTI 55 • Flame monitoring using a thermocouple, and in the case of ZTI 55 also using an ionization electrode • Thermo pilot burners, optionally available with forced draught connection • Electrical ignition with an electrode • Save space due to their compact dimensions • Different lengths make them suitable for individual installation situations • Maintenance-friendly due to use of stainless steel www.kromschroeder.com

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2 · S11T, ZTA, ZT 40, ZTI 55 · Edition 01.12 Pilot burner ZTA with grounding cable and thermo-cable, pilot burner ZT 40 with protective tube and air nozzle Control valve S11T..S with switch to control an ignition transformer Application Control valve S11T For thermo-electric safeguarding of gas-fired installations of any kind in conjunction with thermo pilot burners ZT. The control valve S11T operates independently of mains power supply. The control valve S11T..S is fitted with a switch to control an ignition transformer. Pilot burners For safe ignition and thermo-electric safeguarding in...

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Thermo-electric safeguarding As soon as voltage is supplied to the ignition transformer, the pilot burner is ignited using an ignition spark. An additional gas solenoid valve VG 6 can be used as a safety valve, e.g. for overtemperature shut-down or power shortage cut-out. Thermo-electric safeguarding with electrical ignition via control A contact is closed via the switch on the control valve S11T..S so that voltage is supplied to the ignition transformer. The pilot burner is ignited using an ignition spark. An additional gas solenoid valve VG 6 can be used as a safety valve, e.g. for...

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4 · S11T, ZTA, ZT 40, ZTI 55 · Edition 01.12 Technical data Flow rate Control valve S11T Gas types: natural gas, town gas or LPG. 50 Pilot gas connection: for 8 x 1 tube. ∆p [mbar] 100 20 Opening time: 10 – 15 s. 10 Closing time (decrease of thermo-electric voltage + valve closing time): < 30 s. 5 0.5 0.8 1 Max. inlet pressure pu: S11T..01 = 100 mbar, S11T..15 = 1.5 bar. 2 S1 1T S1 20R0 1T 1 S1 2 5 R 1T 15 25 R0 1 15 R0 1 1 S1 1T Thermo-electric voltage: extinction voltage: 8 mV. S11 T1 5R 15 Ambient temperature: -20 to +60°C. 5 Vn [m3/h] ' 10 20 50 S11T Pilot burner Burner ZTA B ZTA G ZTA...

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