NOTE: DO NOT INSTALL THE 2000/RV-L in pressure tap locations subject to tank pressure. The 2000/RV-L is to ONLY be installed in pressure tap locations after tank pressure has been reduced. Installation elsewhere is in violation of NFPA publications 54 and/or 58.

High Pressure Regulator Tap Pressure Test:

The 1/8" NPT end of the LDS 2000/RV-L may be screwed into the plugged tap in the downstream side of the high-pressure regulator after tank pressure has been reduced and remain a permanent part of the regulator, using the brass cap to keep the opening capped until readings need to be taken. To take a reading; the cap is removed by hand (without tools) and a 30# gauge attached to a Presto-Tap_®Quick Adapter (RV/QA) screwed onto the LDS 2000/RV-L A leak test can be performed at this point by turning off the tank valve, dropping the pressure in the system slightly (a pound, or so) by loosening the Presto-Tap_® Quick Adapter, re-tightening the Adapter, and observing the low pressure gauge for upward or downward movement for three minutes. If the gauge rises, the tank service valve is leaking through; and, if the gauge needle falls, the system is leaking. If the system is determined to be leaking, the system must be turned off, the customer and service personnel informed, and the leak corrected. NOTE: Testing from this position does not provide tank pressure readings and does not indicate "Out-Of-Gas" situations and testing at this location is not described in NFPA Pub. 54 as a leak-test location.

Low Pressure Regulator Tap Pressure Test:

The 1/8" NPT end of the LDS 2000/RV-L may be screwed into the plugged tap in the downstream side of the low-pressure regulator and remain a permanent part of the regulator, using the brass cap to keep the opening capped until readings need to be taken. To take needed readings, the cap is removed. At this time, the hose barb of a water manometer or an ounce gauge is inserted onto the iron pipe thread end of the Presto-Tap_® Low Pressure Adapter (RV/QA) and the assembly screwed onto the LDS 2000/RV-L. With the upstream valve turned off, and determined to not be leaking through, all of the appliances turned off, and the pressure bled off of the system, the valve then turned back on until the motion of the manometer or gauge stops at its highest point, a lock-up pressure test can be made and recorded. A leak test can be performed at this point by turning off the service valve and observing the test equipment for a drop in pressure for a period of not less than three minutes, after dropping the system pressure to 9 in. (± 1/2 in.) water column (WC) to unlock all regulators. If a leak is proven, the system must be turned off and the customer and service personnel informed. If no leak is found, an operating pressure may be determined and recorded by lighting all of the appliances and turning them on.

Downstream Installation (Appliance) Pressure Testing:

It is HIGHLY RECOMMENDED that the LDS 2000/RV with “excess flow” capability be installed in this location because of the enclosed environment. Please refer to the LDS 2000/RV Installation and Operating Instructions. Attach a "Wrench" Cap on installations in this location (inside the structure) and tighten with a wrench to help prevent possible tampering with the valve stem.

External Service Line Shut-Off Valve:

The Presto-Tap_® LDS 2000/RV-L is also designed for insertion into service line shut-off valves (with a 1/8" pressure tap) located at or near the structure, upstream from the low pressure regulator (affording easy replacement of the regulator without closing the tank service valve) and/or into the 1/8" female tap on the downstream side of the low-pressure regulator, if located outside the structure. If a downstream leak has been detected at the LP tank (high-pressure) or the regulator pressure tap located at the tank, the source of the leak can be isolated and determined to be either inside or outside the structure.

Additional Pressure Testing Applications:

The Presto-Tap_® LDS 2000/RV-L is NOT designed for insertion into the tank service valve (downstream from the seat) and in the tank pressure side of regulator openings, as is the Presto-Tap_® LDS 2000/RV which meets NFPA Pub. 54 & 58 regarding “excess flow”.

NOTE: Other Presto-Tap_® LDS products are available that meet NFPA Pub. 54 & 58 requirements for high (tank) pressure insertion locations that provide "Out-of-Gas" AND leak testing capability. Refer to Presto-Tap_® LDS Model #s 1401, 1402, 3801 (pigtails), LDS 2000, TPF and TPF/Pigtail, and 2000/RV depending on the regulator being used.

Presto-Tap®, LLC

The Propane Safety Company™

3101 Little Theater Road, Greenville, Mississippi 38703

Telephone: 662-332-8559 Fax: 662-332-8657

8No-LPG-Leak: 866-574-5325

Member: NPGA

Member: NFPA