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Home > Gas Produts > SGR |
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Safety Shut-Off Solenoid Valve, Manually Operated, Electrically Trip, Type SGR |
DATA SHEET
SGR |
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INTRODUCTION :
SGR Valves are unique in construction and forms most essential part of Safety System in the Gas installation. These valves are mounted prior to Burner, to give maximum importance to the safety, due to failure of electrical supply.
These safety Solenoid are closed when de-energized, opened manually, continuous to remain open, when electric supply is present. If power is interrupted, Safety Shut off valve closes. “After closure, valve does not open, even when power supply is restored”.
Valves suitable for Gas application are in aluminum bodies, available in BSP screwed version; Also in Flanged version, as per DIN or ANSI standard. The valve is robust & reliable in design, practically maintenance free. IF NEEDED, valve can be fitted with Limit Switch assembly to register either opening or closing of the valve.
SGR valves can be applied on Air, Non-Corrosive Gas, Combustible gas, etc. System switch can be installed to make SGR Valves trip, in event of insufficient Gas volume, or insufficient Pressure or failure of power supply. |
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DESCRIPTION :
Manually operated electrically Trip type valves, Type SGR, are suitable for closing within 1-second time. Valve does not open, even through the power supply is restored.
Size: - from ½" (15 MM) to 4" (100 MM) are available in Screwed / Flanged design. The larger sizes are supplied with lever mechanism, for opening of the valve. The maximum working pressure 500 mbar. For large size valves, it is essential to introduce small ½" size valve in parallel with the main valve and to be operated before attempting opening of main valve. This relieves pressure on the main valve body, making it easy to operate. |
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INSTALLATION AND INSTRUCTION FOR ASSEMBLY :
Use proper size wire connect through plastic DIN connector, provided on the solenoid valve box, using flexible cables, to relieve strain on connection box with firm internal and external earthing.It is very essential to use high quality Filter, before this valve. The most essential part of the installation is, valve should be installed in horizontal pipeline, keeping solenoid vertical and upright. The electrical connections are through junction box, as valve uses AC MAINS, Rectifier DC system in the coil. The coils are supplied with spike suppressor and DC rectifier. All DC valves are supplied only with spike suppressor. |
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| TECHNICAL SPECIFICATIONS : |
| Valve Body |
AISI Alloy Sand cast/Pressure di -cast/Gravity die cast. |
| Seats |
Supplied in Buna Nitrile, or on special request 'Viton'. |
| Internal Magnectic Material |
430F. |
| Type of Gas |
All gase non-corrosive to aliminum material including Natural gas, LPG, Methane,Bio gas.
Air or any other inert gas. |
| Operating Pressure |
Please refer to Table (2). |
| Flow Rate |
Please refer to graph. |
| Opening Time |
Less than 1 second. |
| Closing Time |
< = 1 second. |
| Switching Frequency |
Arbitary. |
| Ambient temp. |
(-)20°C to (+) 60°C |
| Coil Protection |
IP 54 according to IS-2147. |
| Power Factor |
1 |
| Coil Insulation |
Class "F" |
| Standard Voltages |
110/220/240V +10% / -15%, 50Hz,
24V +10% /-15%
In case of DC coils, a surge suppressor must be used. |
| Power Consumption |
Power consumption varies in accordance with thw table & size of the valve however
remains steady during pick up and holding. |
| Duty Cycles |
100% |
| Anti Surge Protection |
Fuse must be installed by client maximum 1.3 amps. |
| Cable Glant Entry |
For Size 15-40 (Screwed) -Pg 11
For size 40-100(Flanged) -Pg 13.5 |
| Optional Accessory |
Factory installed only-Limit switch, valve.
Position indicator "S".
Without Damping Unit "N".
Flow adjuster "D"- Gas flow can be adjusted from minimum to 100% as per requirement.
"D" type is not available when limit swith is provided. Flow adjustment is not done at factory
and adjuster is kept "FULL OPEN". |
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| Model |
Size
mm |
End
Connections |
Kv
m³/hr
(Air)
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max.
Inlet
Pres.
Bar |
Power
Watt |
Dimensions |
Flange
Details |
Approximate
Weight kgs. |
L
mm |
D
mm |
H1
mm |
H2
mm |
D2 |
k |
d2 |
n |
No. of
Holes |
| BSP SCREWED DIMENSION |
| SGR 15R |
15 |
RP 1/2 |
4.3 |
0.5 |
18 |
71 |
--- |
179 |
24 |
--- |
--- |
--- |
--- |
--- |
2.10 |
| SGR 20R |
20 |
RP 3/4 |
9.1 |
0.5 |
18 |
91 |
--- |
184 |
33 |
--- |
--- |
--- |
--- |
--- |
2.55 |
| SGR 25R |
25 |
RP 1 |
11.4 |
0.5 |
18 |
91 |
--- |
184 |
33 |
--- |
--- |
--- |
--- |
--- |
2.55 |
| SGR 35R |
35 |
RP 1/2 |
27.3 |
0.5 |
18 |
150 |
128.5 |
198 |
55 |
--- |
--- |
--- |
--- |
--- |
4.0 |
| SGR 50R |
50 |
RP 2 |
42.1 |
0.5 |
18 |
180 |
156.5 |
208 |
64 |
--- |
--- |
--- |
--- |
--- |
5.55 |
| ANSI TYPE FLANGE DIMENSIONS |
| SGR 40A |
40 |
40mm |
27.3 |
0.5 |
18 |
200 |
128.5 |
198 |
63.5 |
127 |
98 |
16 |
14 |
4 |
6.26 |
| SGR 50A |
50 |
50mm |
42.1 |
0.5 |
18 |
230 |
156.5 |
208 |
76.0 |
152 |
121 |
19 |
16 |
4 |
7.24 |
| SGR 65A |
65 |
65mm |
64.8 |
0.5 |
20 |
290 |
183.5 |
215 |
89.0 |
178 |
140 |
19 |
17.5 |
4 |
9.31 |
| SGR 80A |
80 |
80mm |
102.3 |
0.53 |
20 |
310 |
210.0 |
225 |
95.5 |
191 |
152 |
19 |
19 |
4 |
12.12 |
| SGR 100A |
100 |
100mm |
161.3 |
0.2 |
20 |
350 |
210.0 |
250 |
114.5 |
229 |
191 |
19 |
24 |
8 |
14.50 |
| DIN TYPE FLANGE DIMENSIONS |
| SGR 40F |
40 |
40mm |
27.3 |
0.5 |
18 |
200 |
128.5 |
198 |
75.0 |
150 |
110 |
18 |
18 |
4 |
6.26 |
| SGR 50F |
50 |
50mm |
42.1 |
0.5 |
18 |
230 |
156.5 |
208 |
82.5 |
165 |
125 |
18 |
20 |
4 |
7.24 |
| SGR 65F |
65 |
65mm |
64.8 |
0.5 |
20 |
290 |
183.5 |
215 |
92.5 |
185 |
145 |
18 |
20 |
4 |
9.31 |
| SGR 80F |
80 |
80mm |
102.3 |
0.3 |
20 |
310 |
210.0 |
225 |
100.0 |
200 |
160 |
18 |
22 |
4 |
12.12 |
| SGR 100F |
100 |
100mm |
161.5 |
0.2 |
20 |
350 |
210.0 |
250 |
110.0 |
220 |
180 |
18 |
24 |
8 |
14.50 |
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| SPECIFIC GRAVITY : |
| Natural Gas |
0.62 |
| Town Gas |
0.45 |
| LP Gas |
1.56 |
| Air |
1.0 |
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| 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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