DSS7N-56 3 /4

BRAND: CAVAGNA GROUP KOSAN

PART NUMBER: DSS7N-56

APPLICATION: HEAVY DUTY SECOND STAGE REGULATOR WITH

AUTOMATIC SHUT OFF FOR TOO HIGH OR TOO LOW PRESSURE

CONFIGURATION: 90 DEGREE

INPUT SIZE: 3/4″ FEMALE NPT

OUTPUT: 9.0″-13.0″ WC

OUTPUT SIZE: 3/4″ FEMALE NPT

BTU CAPACITY: 2.3 MILLION BTU/HR AT 10 PSI INLET

Key features:

–  The dual stage design provides superior stability and performance, even with elevated inlet pressures up to 30 PSI

–  It has a sensing tube in the outlet connection which monitors the downstream pressure and provides feedback to the diaphragm

–  It has a “slam-shut” shut-off device which activates when the set point is reached in overpressure or underpressure or situations, requiring a manual reset.

–  In an overpressure scenario, when the 11” WC outlet pressure exceeds 1.5 psi, the downstream flow is shut-off. This is known as OPSO, or Over Pressure Shut Off.

–  In an underpressure scenario, when the 11” WC outlet pressure decreases below 3” to 4“ WC, the downstream flow is shut-off. This is known as UPSO or Under Pressure Shut Off.

–  When the slam-shut device is activated it prevents gas flow downstream or out through the relief vent

–  The flow remains closed until the condition can be properly resolved by a qualified technician

–  The device is reset by lifting the control disc using the gripper tool provided on the indicator cover (and during initial start-up)

–  The regulator body is die-cast aluminum with stainless steel internals and a Nitrile diaphragm

–  It has a 1/2″ orifice with a capacity of 2.3 million BTU/hr at 10 PSI inlet (2.5 million BTU/hr with the 1″ FPT outlet) 

–  The 11″ WC version has a spring range of 9″ to 13″ WC, and the 2 PSI version has a spring range of 1 PSI to 2.2 PSI

–  The relief vent is over the outlet and it has an 1/8″ FPT pressure test tap on the outlet side

–  It is designed for use in domestic and light commercial applications on individual installations or in community gas grid systems

–  It is UL listed to the 144 standard with an operating temperature range of -40F to 140F

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