21 pcs 1" water meter

21 Pcs 1”Ø Water Meter ₱15,625.00 / pc STANDARD SPECIFICATIONS FOR ½”Ø, ¾”Ø, 1”Ø, AND 1½”Ø WATER METERS I. TYPE OF METER: a) Multi-jet dynamically balanced vane wheel. (DMD-A) b) Register assembly must be dry type hermetically sealed. c) Anti-magnetic. Magnetic coupling must be protected from external magnetic fields of 1,500 gauss. d) With removable strainer at the inlet with an effective area of at least three (3) times the body inlet. e) The dial lens shall be high impact glass lens and abrasion resistant. f) Regulator knob must be located outside the meter casing and shall be provided with a seal protector. II. DIMENSIONS: · The size of the meter mean the clear internal diameter inlet to all outlet from meter · The overall length of the meter between connector faces shall be as follows: 1”Ø Overall Length of meter with connectors and gaskets, mm = 225 - 260 III. MAIN CASING: • The body must be made of corrosion-resistant copper alloy ) The casing must have the following markings: (a) Direction of flow on at least one side (b) Meter serial number and shall be located at the bonnet or at the body of the meter (c) The BWD logo shall be inscribed inside the face dial (as per sample). IV. PERFORMANCE: The meter must be able to retain accuracy based on the following performance index when tested in the test bench: Item / Unit / 1”Ø Maximum flow rate, Qmax / Cu.m/hr / 7 Nominal flow rate, Qn / Cu.m./hr / 3.5 Transitional flow rate, Qt / l/h / 280 Minimum flow rate, Qmin / l/h / 70 Accuracy between Qmax and Qt / - / ±2% Accuracy between Qt and Qmin / - / ±5% Register capacity / Cubic meter / From 4 to 6 digits Smallest readable unit / Cubic meter / 0.0001 The meter must still be to register the flow when subjected to “JERKING “ test @ Qmax V. WORKING PRESSURE: The meter working pressure shall be 10 bars or 145psi VI. HEADLOSS: Meter shall allow a loss of head not to exceed 1.00 bar at Qmax: Size / 1”Ø Head loss at Qmax / Not to exceed 1 bar Head loss shall be undertake