Test Objective, Method, and Reporting Requirements for Check Valve and Air Inlet Valve: Note: Once the test gauge is elevated when testing an SVBA, it should remain elevated while testing the check valve and air inlet valve opening point. Test the check valve for tightness in the direction of flow and determine the static pres-

SVB Test Procedures – Short Form . 1. Preliminary Steps: a. Notify b. Identify c. Inspect d. Observe. 2. Purge: a. Open test cock, purge and close b. Loosen Vent Screw, purge and close. 3. Set Up: a. Remove Air Inlet Valve Cover b. Install fittings using Teflon Tape c. Install Compensating Valve to the test cock d. Connect High Hose to ...

Test No. 1 - Differential Test. Requirement: Differential pressure across check must be 1.0 psid or above Step 1: Remove two screws on top of hood then remove hood. Step 2: Install hose between test cock and connection “A” high side (red) of test kit. Step 3: Open test cock then open bleed valve “A” on top of test kit.

test procedures and troubleshooting scenarios for the reduced pressure principle backflow prevention assembly (RP), double check valve backflow prevention assembly (DC), pres-sure vacuum breaker assembly (PVB) and for the first time ever the spill-resistant pressure vacuum breaker assembly (SVB). Contents Disc Compression p. 5 Hydraulic Lock p. 4

Check out our video on how to test the ASSE 1056 Spill Resistant Vacuum Breaker using the University of Southern California (USC) 10th Edition Procedures. More info about the Kruger Instruments...

Determine the direction of flow. Identify and “blow out” test cocks and install appropriate adapters. All test kit valves are closed. IMPORTANT: THE TEST KIT AND HOSE MUST BE HELD AT THE SAME LEVEL AS THE PVB DURING TESTS 1 AND 2. TEST NO. 1 – DOES THE AIR INLET VALVE OPEN WHEN THE PRESSURE IN THE BODY IS AT LEAST 1 PSI ABOVE ATMOSPHERIC PRESSURE?

ability to perform a field test on a reduced pressure principle backflow prevention assembly, a double check backflow prevention assembly, and a pressure vacuum breaker. Beginning January 2004, the spill resistant pressure vacuum breaker was added to the written and performance examinations. This performance examination

This field test procedure utilizes a three valve differential pressure test kit to measure the static differential pressure across the check valve and determine the opening point of the air inlet valve.

SVB (CHECK VALVE TEST) (Notify Identify Inspect Observe) 1. Remove the air inlet canopy, flush TC and vent valve, in any order. 2. (If needed) Install appropriate fitting on TC. 3. Attach bleed valve tool and high side hose to TC #1, then open TC #1. 4. Open high side bleed valve to remove the air from hose and gauge, then close high side bleed ...

TEST RESULTS. If the air inlet is visually open when the differential gauge: reading is 1 psid or greater, record valve passed. Restore System. 1. Close all TCs: 2. Remove hoses: 3. Open all valves on test kit to drain water: 4. Restore to pre-test state: 5. Reinstall air-inlet canopy/hood: Test #1. Test #2: Attach Test Kit. Flush TCs