Volumetric Piston Liquid Type Class C/R160 Water Meter (Brass or Plastic)

Product Description

NWM PD-LFC is Piston Displacement (Volumetric) water meter with mechanical transmission, liquid sealed register has the sizes from Dn15 to Dn40 designed 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 and hot 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-LFC (B) can be used safely in water temperature up to 50ºC(T50); The rollers are protected by special liquid don't touch with the water which ensures the clear reading in any operating conditions; The mechanical transmission movement with the maximum reliability; no influence from the external magnetic field; Suitable for any position installation; Non Return Valve to avoid the reserve flow Rate; Dimension:

Size	Dn15	Dn20	Dn25	Dn32	Dn40
L	115	130	170/260	260	300
L1	209	234	290/380	384	431
D	G3/4B	G3/4B	G1-1/4B	G1-1/2B	G2B
d	R1/2	R3/4	R1	R1-1/4	R1-1/2
W	90	96	112	139	174

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	160	160	160	160
Q4	m3/h	3,125	5	7,875	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	200	200	200	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	250	250	250	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
Max. Reading	m3	9999,9999			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 (for T30):
From Q1 inclusive up to but excluding Q2 is ± 5%;
From Q2 inclusive up to and including Q4 is ± 2%;
OPTION VISION of PD-SDC (B):
Pulse output as option or AMR module for wireless application