SPECIAL OPTIONS
– Dual GPM/LPM Scale
– Standard: GPM Scale
– Nitronic Meter
– Standard: Aluminum Meter
– Stainless Steel, Epoxy or Monel Venturi
– Standard: Carbon Steel Venturi
– Hose Lengths for Remote Mounting
– Standard: 21″ Hose Assembly
Attached to the meter with a brass chain is an oblong metal tag with the suggested piping diagram of the
system on one side, and the following operating instructions on the reverse side:
1. Close system OSY valve “A”
2. Open by-pass valve and “B” butterfly throttle valve
3. Purge meter, located on venturi, as follows:
a) Open station shut-off valves on venturi, and vent valves attached to meter.
When a steady stream of water without air bubbles passes through the clear plastic hoses,the meter is purged of air.
b) Close the vent valves after purging.
4. Start the fire pump, and read meter in GPM.
5. Refer to pump GPM requirement and adjust throttle valve to meet the requirement.
6.After the test, open valve “A” and close the by-pass and “B” valves.
– PIPES : ASTM A53B ERW – ANSI B36.10
2-1/2” – 10” SCH 40
12” & ABOVE STD
– COUPLINGS: 12L14 STEEL ASTM 108
– SPINNINGS: HOT ROLLED A621 or COLD ROLLED A620 STEEL
– ZING PLATING: .005 THICK ASTM B633-TYPE III
SERVICE SG3-VENTURIS STEEL ” -30”
– FLANGES: ASTM A105 2-1/2” -10” SCH 40 BORE
12” & ABOVE STD. BORE
– VENTURI & INDICATORS : CA36 ASTM B16 BRASS
– IW-GO’S: /25 CARBON STEEL PLATE ASTM A36
– TAG CHAIN/GROMMET: BRASS
– TAG: ALUMINUM- 3.21” THICK #200 MILL
– TAG SET SCREW: STEEL ZINC PLATED
– METER FITTING & DISCONNECTS: PIPE NIPPLE – B16 / 1/8” NEEDLE VALVE-B16
DISCONNECTS-B16