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    2/2-Way Direct Acting, Solenoid Valves, Normally Closed, Energised to Open for gas & Air Application DATA SHEET
SG
   
FEATURES :
  • Gas safety valve group ‘A’ in accordance with DN 3391/3
  • Operating pressures 0 to 200 mbar, 0 to 360 mbar
  • Long life design
  • Internationally approved designs
  • Robust, maintenance free, leakage free construction
  • Fast opening or slow opening or adjustable initial opening
  • Fast closing
  • Large flow rate
  • Fitted with flow adjustment device
  • Low pressure loss through valve
  • Available with opening speed adjustment damper
  • Few models with single limit switch for position indication or proof of closure/opening.
 
APPLICATION :
 For protection, regulation and control of air and gas supply to gas burner/gas devices.
TECHNICAL SPECIFICATIONS :
Valve Body AISI Alloy cast, Pressure die-cast or gravity die cast
Valve Seat Buna Nitrile, on special request 'Viton'.
Magnectic construction 430F.
Operating Pressure Refer to the specification table
Operating Temperature (-)20° to (+)60°C
Opening time SG..N without damping unit, fast opening~ 0.5 Sec. SG..L with damping unit, slow opening approx. 10Sec.
Closing time Less than 1 second
Switching frequency Arbitary
Coil protection IP-54 according to IS-2147.
Power factor 1.
Coil insulation Class "F"
Standard Voltages 110/220/240V +10% / -5%, 50Hz;24V +10% /-15% DC.
Coils on AC voltage (24 VAC excluded) are fed through protective circuit and rectifier. For 24V AC protective external protective circuit with rectifier must be provided. For 24V DC external protective circuit must be provided.
Power Consumption Will be in accordance with specification table. Power consumption does not change during pick-up and holding operation.
Duty Cycle 100%
Fuse Max. 6.3 Amperes with anti surge protection.
Cable Entry Valves provided with coupler plug as per DIN 43650.
Cable Gland PG 11 for size 15 to 25 NB, Pg 13.5 for size 40 to 100NB
Fluids All gases in accordance with DVGW Code of practice G260/1 Natural gas, LPG, Methane, Bio-gas(special construction required), air or any other inert gas.





 

 

 
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INSTALLATION INSTRUCTION :
  • While installing the valve in the pipe work do not use Solenoid portion as a leaver. Use suitable holding device for the valve.
  • Remove pipeline strain by installing suitable flexible joints.
  • Read pressure loss and flow rate for the valve from the flow diagram. However valves can be also chosen by determining Kv value.
P [ kg/m³  ]; ∆p [ milibar ]; ↓[ m³ /hr  ]
(Conversion of SI Units) 1 milibar = 100Pa
  • Fix all valves in horizontal pipeline, keeping Solenoid vertical and upright.
  • Housing must not touch its surrounding walls. Keep minimum 20mm distance.
  
For Regulators With Flanged Connection,
Flanged Bolts, Nuts and Washers Can Be Supplied.

 
 
SELECTION TABLE :
SG Type
40 Size
R/F/A Connection
02 Maximum inlet pressure
L Damping Unit
T Voltage 15, 20, 25, 40
3 Terminal box
1 Test Plug
*D  
*S Closed Position Indicator
*M Suitable for Bio Produced methane
*V Seat Material
(*) IF NOT APPLICABLE THIS LETTERS IS OMITTED, i.e. THE NEXT LETTER MOVES ONE UP
 
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TABLE 1 : FOR SCREWED END CONNECTION VALVES 200mbar
TYPE DN Dimensions Max.
Press
Gr. A
CI. 1 		∆p=
1mbar
of air 		Kv
****		 p   p Weight Weight(1)
L H1 H2 H3 E (1) 220V
110V
24V
AC		 (1) 240 V
AC 		(1)
  mm mm mm mm mm mm mm mbar m³/hr m³/hr VA/W VA/W VA/W VA/W kg*** kg***
SG 15 R 02 15 71 161 112 24 56 185 200 3.8 4.3 32 38 38 38 1.26 1.46
SG 20 R 02 20 91 175 126 33 61 208 200 8 9.1 31 42 37 42 1.91 2.11
SG 25 R 02 25 91 175 126 33 61 208 200 10 11.4 31 42 37 42 2.10 2.30
TABLE FOR SCREWED END CONNECTION VALVES 360mbar
SG 15 R 03 15 71 161 112 24 56 185 360 3..8 4.3 32 31 38 37 1.26 1.46
SG 20 R 03 20 91 175 126 33 66 208 360 8 9.1 36 42 42 42 2.25 2.45
SG 25 R 03 25 91 175 126 33 66 208 360 10 11.4 36 42 42 42 2.25 2.45
Note:
(1) Model with Damper
*** Model with position indicator
**** Refer to formulate to obtain kv
TABLE 2 : FOR FLANGED END CONNECTION VALVES
MODEL - SGXXA WITH ANSI FLANGES   MODEL - SGXXF WITH DIN FLANGES
Type DN L Dimensions Flange No.
of
holes		 Max
Press
Gr.A
CI.1		 ∆p=
1mbar
of air		 Kv*** p
220V
110V
24V
AC		 P
240 V 		Weight
OD H1 H2 H3 D2 K d2
  mm mm mm mm mm mm mm mm mm   mbar m³/hr m³/hr VA/W VA/W kgs*
ANSI TYPE FLANGE DIMENSIONS FOR 200mbar
SG 40 A 02 40 200 128.5 279.5 204.5 50.5 127 98 16 4 130 24 27.3 67 75 7.5
SG 50 A 02 50 230 156.5 291 216 62 152 121 19 4 130 37 42.1 73 86 9.6
SG 65 A 02 65 290 183.5 303 228 74 178 140 19 4 130 57 64.8 85 99 15.8
SG 80 A 02 80 310 210 404 329 103 191 152 19 4 130 90 102.3 105 125 25
SG 100 A 02 100 350 210 428 353 110 229 191 19 8 130 142 161.5 158 187 41
ANSI TYPE FLANGE DIMENSIONS FOR 360mbar
SG 40 A 03 40 200 128.5 279.5 204.5 50.5 127 98 16 4 360 24 27.3 73 86 8.8
SG 50 A 03 50 230 156.5 291 216 62 152 121 19 4 360 37 42.1 85 99 14.3
SG 65 A 03 65 290 183.5 393 318 74 178 140 19 4 360 57 64.8 105 125 21.6
SG 80 A 03 80 310 210 404 329 103 191 152 19 4 360 90 102.3 158 187 36
SG 100 A 03 100 350 210 428 353 110 229 191 19 8 360 142 161.5 158 187 50
DIN TYPE FLANGE DIMENSIONS FOR 200mbar
SG 40 F 02 40 200 128.5 279.5 204.5 50.5 150 110 18 4 130 24 27.3 67 75 7.5
SG 50 F 02 50 230 156.5 291 216 62 165 125 18 4 130 37 42.1 73 86 9.6
SG 65 F 02 65 290 183.5 303 318 74 185 145 18 4 130 57 64.8 85 99 15.8
SG 80 F 02 80 310 210 404 329 103 200 160 18 8 130 90 102.3 105 125 25
SG 100 F 02 100 350 210 428 353 110 220 180 18 8 130 142 161.5 158 187 41
DIN TYPE FLANGE DIMENSIONS FOR 360mbar
SG 40 F 03 40 200 128.5 279.5 204.5 50.5 150 110 18 4 360 24 27.3 73 86 8.8
SG 50 F 03 50 230 156.5 291 216 62 165 125 18 4 360 37 42.1 85 99 14.3
SG 65 F 03 65 290 183.5 393 318 74 185 145 18 4 360 57 64.8 105 125 21.6
SG 80 F 03 80 310 210 404 329 103 200 160 18 8 360 90 102.3 158 187 36
SG 100 F 03 100 350 210 428 353 110 220 180 18 8 360 142 161.5 158 187 50
Note:
* With Slow Opening Valve + 0.5 kg. for the damping unit, version with position indicator +0.2 kg.
*** Withot damping unit, without position indicator, without flow rate restrictor.
 
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VOLUMETRIC FLOW DIAGRAM
VOLVES WITH LOW INLET PRESSURE
SPECIFIC GRAVITY :
Natural Gas 0.62
Town Gas 0.45
LP Gas 1.56
Air 1.0
Note:
when reading operating cubic meter in the diagram, without converting to m³/hr (n), the pressure loss as read, is to be multiplied with the absolute pressure in
bar (positive pressure in bar).
 
Note:
Technical specifications details & dimensions are subject to change without prior notice.
Dimensions in the table are approximate subject to final confirmation by AVCON.
   
 
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