Volumetric Piston Dry Type Class D/R630 Water Meter (Brass or Plastic)

Product Description

NWM PD-SDC is Piston Displacement (Volumetric) water meter with magnetic transmission, dry type register at sizes Dn15 to Dn25 designed and manufacture by NWM and meets to the requirements of Directive 2004/22/EC on measuring instruments; the European Standard EN14154+A1+A2: Water Meter; the International Organization of Legal Metrology OIML R-49: 2006(E): Water meters intended for the metering of cold potable water.
CHARACTERISTICS: All the components are produced with high resistance and quality materials, technical plastics and stainless steel parts; Cold water meter under current standard for lower than 30ºC(T30), but NWM PD-SDC can be used safely in water temperature up to 50ºC(T50); The ROTARY indicator register for the most comfortable reading position is of 8 Rollers and 1 Pointer; Suitable for any position installation; The Piston is the main moving parts in contact with water permitting the most reliable; The extra inlet filter at the inlet of the meter body permits cleaning it without breaking the metrological seal; The conception of the Magnetic Protection to against the external influences; Pulse output pre-equipped at 10 liters/pulse; Non Return Valve to avoid the reserve flow Rate AS OPTION; DIMENSION:

Size	Dn15	Dn20	Dn25	Dn32	Dn40
L	110/165/170	165/190	260	260	300
L1	204/259/265	269/294	380	384	431
D	G3/4B	G1B	G1-1/4B	G1-1/4B	G1-1/4B
d	R1/2	R3/4	R1	R1	R1
H	109.5	121	143	143	164.5
H1	181	192.5	231	226.5	249
W	84	95	110	145	173.5

L1: the total length with connection and the gasket without compression.
MAIN TECHNICAL DATA:

Size	mm	Dn15	Dn20	Dn25	Dn32	Dn40
R	Q3/Q1	160
Q4	m3/h	3,125	5	7,785	12,5	20
Q3	m3/h	2,5	4	6,3	10	16
Q2	l/h	25	40	63	100	160
Q1	l/h	15,625	25	39,375	62,5	100
R	Q3/Q1	200
Q4	m3/h	3,125	5	7,785	12,5	20
Q3	m3/h	2,5	4	6,3	10	16
Q2	l/h	20	32	50,4	80	128
Q1	l/h	12,5	20	31,5	50	80
R	Q3/Q1	250
Q4	m3/h	3,125	5	7,785	12,5	20
Q3	m3/h	2,5	4	6,3	10	16
Q2	l/h	16	25,6	40,32	64	102,4
Q1	l/h	10	16	25,2	40	64
R	Q3/Q1	315
Q4	m3/h	3,125	5	7,785	12,5	20
Q3	m3/h	2,5	4	6,3	10	16
Q2	l/h	12,70	20,31	32,00	50,79	81,27
Q1	l/h	7,94	12,69	20,00	31,75	50,79
R	Q3/Q1	400
Q4	m3/h	3,125	5	7,785	12,5	20
Q3	m3/h	2,5	4	6,3	10	16
Q2	l/h	10	16	25,2	40	64
Q1	l/h	6,25	10	15,75	25	40
R	Q3/Q1	613
Q4	m3/h	3,125	N/A	N/A	N/A	N/A
Q3	m3/h	2,5	N/A	N/A	N/A	N/A
Q2	l/h	6.52	N/A	N/A	N/A	N/A
Q1	l/h	4.08	N/A	N/A	N/A	N/A
R	Q3/Q1	800
Q4	m3/h	3,125	N/A	N/A	N/A	N/A
Q3	m3/h	2,5	N/A	N/A	N/A	N/A
Q2	l/h	5	N/A	N/A	N/A	N/A
Q1	l/h	3.125	N/A	N/A	N/A	N/A
Max. Reading	m3	99999,9999
Min. Reading	Liter	0.02
Pressure Loss	ΔP	ΔP<63 at Q3
Max. Pressure	MAP	MAP16
Max. Temperate	ºC	T30 or T50

MAX PERMISSION ERROR:
From Q1 inclusive up to but excluding Q2 is ± 5%;
From Q2 inclusive up to and including Q4 is ± 2% for T30 and ± 3% for T50.

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