Dungs GW A4/2 HP SGS High Pressure Gas Switch
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The GW...A4/2 HP pressure switch is an adjustable pressure switch for automatic gas burning equipment controls. It is suitable for closing, opening or switching over a current circuit when the actual pressure value deviates from the specified pressure setpoint. The specified pressure setpoint (operating point) is set at a setting wheel using a scale.
Pressure monitoring in control systems suitable for gaseous fuels and other neutral gaseous media as well as air, flue gases and products of combustion. Contacts are Silver, gold-plated (Au). This switch has Stainless Steel membrane and viton seals for compatibility for gases up to 1% H2S (Digester / Landfill)
Die cast zinc, powder coated 1/4" NPT pipe mount, screw terminals with M20x1.5 cable gland. Special gas rated up to 1.0% by volume H2S wet
Specifications:
- Max. operating pressure: 2-8 barg (gas)(30-115 Psig). Setpoint range 0.1 to 6 barg (40-2400"wc).
- Enclosure Rating: IP65 (NEMA 4)
- Ambient Temperature Rating: 15°C to +70°C (5°F to 158°F)
- Contacts Ratings:
- 24-250VAC 20mA - 3Amps
- 5-48VDC 5mA-1amp
- Note: After use with more than 24VDC/20mA, rating becomes 24VDC/20mA
| Model | pmax. bar [PSI] | Order No. | Adjusting range bar [PSI] | Switching hysteresis Δp bar [PSI] |
| GW 500 A4/2 HP SGS | 2 @ 0.1 - 0.15 [29 @ 1.5 - 2.0] 5 @ 0.15 - 0.5 [72.5 @ 2.0 - 7.0] |
273274 | 0.1 - 0.5 [1.5 - 7.0] (40-200"wc) |
≤ 0.03 [0.5] |
| GW 2000 A4/2 HP SGS | 5 [75] | 273275 | 0.4 - 2.0 [6 - 30] (160-800"wc) |
≤ 0.05 @ 0.4 - 1 [0.05 @ 6 - 15] ≤ 0.1 @ > 1 - 2 [1.5 @ 15 - 30] |
| GW 6000 A4/2 HP SGS | 8 [120] | 255571 | 1.0 - 6.0 [15 - 85] (400-2400"wc) |
≤ 0.3 [4.5] |
Also See:
- Dungs GAO High or Low Pressure Switch
- Dungs GGAO High or Low Pressure Switch with Gold Contacts
- Dungs GMH High Pressure Switch
- Dungs GML High Pressure Switch
- Dungs AA-A2 Differential Pressure Switch
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