RPZ Short Form Test Procedures
NIIO
Purge Test Cocks:
Open test cocks # 4,3,2,1
Close test cocks # 1,2,3,4
Close Valves on Gauge and Connect Hoses:
install Fittings in test cocks using Teflon Tape
Connect High Hose to # 2 test cock. Connect Low Hose to # 3 test cock.
Open # 3 test cock, Open Low Bleed Valve.
Open # 2 test cock, Open High Bleed Valve.
Close # 2 test Shut Off Valve. Close High Bleed Valve. Close Low Bleed Valve.
Observe the gauge reading as Apparent Reading, (AR)
Test # 1: Differential Pressure Relief Valve:
Test Requirement: Has to keep the Zone at Least 2 psi Less than the Supply
Open High Control, (High Control Remains On Throughout the Test)
Piace Hand Under Relief Valve. Open Low Control.
Pointer Stops and Water is Dripping, Read the Gauge
Close the Low Control, (Remains Closed)
Record as the Relief Valve Opening Point, (RVOP) Must be 2 psi or more.
Test # 2: Check # 2 Check Valve for Tightness Against Backpressure:
Test Requirement: Must Hold Tight Against Backpressure
Open Bypass Valve on Gauge to purge Air from Hose. Close Bypass Valve
Connect the Bypass hose to the # 4 test cock and open the #4 test cock.
Normalize the Zone, (Open Low Bleed, Peg the Gauge, Close Low Bleed)
Perform the Test, (Open Bypass Valve. Bypass Valve Remains Open)
Evaluate Gauge Reading, (Gauge Reading must be above the RVOP)
If above the RVOP and the Relief Valve are not leaking: Record: Closed Tight.
If the gauge falls to the RVOP, Normalize the Zone: (DO NOT CLOSE BYPASS)
If Gauge Holds Above RVOP and Does Not Leak: Closed Tight, PASS.
If Reading Falls to RVOP and Leaks: Leaked, FAIL. Record NO TEST for #1 CK.
Test # 3: # 1 Check Valve: (Can only be performed if #2 Check Valve Passed)
Test Requirement: Must Be Above the RVOP and in No Case Less Than 5 psi
Open Low Bleed. Peg the Gauge. Close Low Bleed. Read the Gauge
Evaluate Gauge Reading. Record the Reading.
Remove Equipment. Complete and File Test Repair Form.
