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DUNGS
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Visual Indicator
shows closed and open position of the safety valve.Closed position
indicator, CPI 400
indicates closed and open position by a lamp. Interlock switch for
electrical signal SPDT 10A @ 120 VAC. |
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VPS 504
Valve proving system for Dual Modular Safety Valves (DMV)max. operating
pressure: 7 PSI
test volume: 0.14 cft
sensitivity limit: <2.0 cft/hr
test cycle: approx. 10 to 30 s
ambient temperature: +5 to +140°F |
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VDK 200 A
Valve proving system for use with gas trains with two single safety shutoff
valvesmax. operating pressure: 5 PSI
test volume: 0.71 cft
sensitivity limit: <2.0 cft/hr
test cycle: approx. 32 s
ambient temperature: +14 to +140°F
CM 100/101
Control module(not shown); used with VPS or VDK when checking on start and
shut down is required. |
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GAO-A4-4...Pressure Switch; auto reset
GMH-A4-4...High Pressure Limit; manual reset
GML-A4-4...Low Pressure Limit; manual resetGMH locks out and indicates
when the pressure exceeds the set-point.
GML locks out and indicates when the pressure is below the set-point.
G...-A2-4...Pressure Switches are to be used on DMV valves.
G...-A4-4...Pressure Switches are to be used with 1/4" NPT pipe.
ambient temperature: -40 to +140°F
enclosure: NEMA 4, indoor use only
switch rating: SPDT 10A @ 120 VAC
visual indication: neon light
ventless
Gas pressure switch set-point ranges:
0.16 to 1.20" wc, 0.40 to 4.00" wc,
2.00 to 20.00" wc, 12.00 to 60.00" wc,
40.00 to 200.00" wc |


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Tech Bulletins
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