Two-position solenoid safety gas valves with electric power drive (BH series, aluminum housing, explosion proof version)

Transcription

1 Two-position solenoid safety gas valves with electric power drive (BH series, aluminum housing, explosion proof version) Type of the electric power drive applied (climatic version, electrical connection schemes) Two-position solenoid safety gas valves with electric power drive (ÂÍ series, aluminum housing, explosion proof version)

2 This type of valves are equipped with the following single turn power drives (in explosion proof version): - SP-Ex BFA; - SP-Ex BFA; - SP-Ex BVA; - SP-Ex BVA. Climatic versions (for power drives): - SP-Ex BFA è SP-Ex BVA : Ñ; - SP-Ex BFA è SP-Ex BVA : Ñ. Power source of the a/m power drives - V AC; the power drives are equipped with two auxiliary position switches, two torque switches, heating resistance, mechanical limit stops along rotation. The a/m power drives have a special type of explosion proofness - explosion-proof enclosure and EExdeIIT6 marking. The power drives can be applied in explosion hazard zones. For switching schemes of the power drives see figure 3-. S M~ S2 F S3 S4 F2 E B 3 2 X à) F2 E S M~ S2 F S3 S4 Â3 I X GND I PE L N L b) DC R L Figure 3-. Electrical connection scheme for SÐ-Ex type actuator: a) For P-766 scheme ( SP-Ex BFA and SP-Ex BFA type actuators - with resistive type transmitter, resistance Ohm); b) For Z258 scheme (SP-Ex BVA and SP-Ex BVA type actuators - with three-wire electronic trasmitter) JV TermoBrest Ltd, 204, Smirnova str. 66, Brest Tel./fax: (375-62) -7-04,

3 Í Valves in aluminum housing Two-position solenoid safety gas valves with electric power drive (BH series, aluminum housing, explosion proof version) D K N PE L B D d L À Figure 3-2 The rotary flapper, inbuilt in the valve, regulates and controls gas flow rate. The rotary flapper is placed downstream after the closing member mechanism. The valve with proportional regulation have the following operation modes: - closed (when de-energized); - rated flow rate (both the solenoid and the actuator are energized; the flow rate is regulated with the help of the actuator s limit travel switches). The valve has an increased level of explosion proofness - increased protection against explosion, which is guaranteed by a special type of explosion protection and 2ExmIIT4 marking. This type of valves can be applied in explosion hazard zones (according to provision 7.3 of Electrical installation system rules and other documents specifying the rules of electrical devices application/usage in explosion dangerous zones). JV TermoBrest Ltd, 204, Smirnova str. 66, Brest Tel./fax: (375-62) -7-04,

4 Switching frequency, /h, max: Service term, switchings, min: 40 switchings times Power source: Housing material: - Of the solenoid: VAC, 0 VAC, aluminum alloys VAC; VDC; Mounting position: onto horizontal pipeline - Of the actuator: VAC (solenoid facing upwards) Î Climatic version: Ñ; Î Î Regulator s rotation angle: Ñ. Regulator s total travel time, s: Degree of protection: - of the valve - IÐ67; - of the actuator - IÐ54. Valve s model DN, mm General technical characteristics General technical information, overall dimensions and connection sizes of two-position solenoid safety gas vales with electric power drive, explosion proof version Operating pressure range, bar Dimensions, mm L B D K H A D d Power W, max* Weight, kg Resistance factor ÂÍ / 2Ì-ÊÅ fl. ÂÍ / 2 Ì-2ÊÅ fl / 2,5 6,5 7,, ÂÍ / 2 Ì-3ÊÅ fl. ÂÍ2Ì-ÊÅ fl. ÂÍ2Ì-2ÊÅ fl , / 7,5 25 / 2,5 7,2 7,0 7,6 4,8 ÂÍ2Ì-3ÊÅ fl. 35 / 7,5 7,7 ÂÍ2 / 2 Ì-0,5ÊÅ / 20 20,4 ÂÍ2 / 2 Ì-ÊÅ ,0 5,0 ÂÍ2 / 2 Ì-3ÊÅ 590 2,3 ÂÍ3Ì-0,5ÊÅ ÂÍ3Ì-ÊÅ ,7 23,0 5,4 ÂÍ3Ì-3ÊÅ ÂÍ4Ì-0,5ÊÅ ÂÍ4Ì-ÊÅ / 45 25,3,,4 7,7 ÂÍ4Ì-3ÊÅ / 45 26,7 * First value - at the time of valve opening; second value - energy saving mode JV TermoBrest Ltd, 204, Smirnova str. 66, Brest Tel./fax: (375-62) -7-04,

5 Electrical characteristics of the valves For the solenoid Power Power supply voltage, V W, max Consumption current, ma, max For the actuator Power supply voltage V AC 50 Hz Power max 4 W Example of identification code for the valve with electric power drive in explosion proof version, with flange type connection, connection size DN mm, operating pressure bar; the actuator (proportional regulation mode) is equipped with resistive type transmitter, resistance 2000 Ohm, Ñ climatic version: Valve ÂÍ3Ì-ÊÅ, (2000 Ohm), Ñ climatic version, V, 50 Hz. When ordering the valve with position indicator letter P should be added to the identification code. Example: Valve ÂÍ4Ì-0,5ÊPÅ. Thereby, valve height dimensions increase by 00 mm, and its weight by 0,3 kg. For notes JV TermoBrest Ltd, 204, Smirnova str. 66, Brest Tel./fax: (375-62) -7-04,