Single-jet Dry Type Water Meter - Welle Digital Technology Co., Ltd.

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Introduction

The single jet dry type water meter features a dry-type vacuum sealing design for long-term clear and stable readings, unaffected by water quality or environmental factors. Its built-in anti-magnetic drive mechanism ensures accurate and reliable measurement, adapting to complex water environments. Ideal for home water supply, commercial buildings, industrial pipelines, and HVAC systems.

Features

Dry dial, Vacuum sealed to keep clean reading for long time
Available for cold water 0~50℃ and hot water 50℃~90℃
Magnetic transmission
Antimagnetic type
360° Rotating dial

Work Condition

Water temperature≤50℃; hot water meter≤ 90℃
Water pressure≤1MPa(PN:1.6MPa/16bar)
ΔP≤0.1MPa

Accuracy

From minimum flow-rate(qmin) inclusive, to transitional flow-rate(qt) exclusive:±5%

From transitional flow-rate(qt) inclusive, to overload flow-rate(qs) exclusive:±2%(Hot water meter: ±3%)

Upon Request

Remote transmission device can be added upon request

Pulse output 10L/Pulse

Head Loss

Error Curve

Dimension

Model Number		WD-13D3	WD-20D3	WD-32D3	WD-32D3	WD-40D3
Length L(mm):		110/115	130	160	160	200
Size	mm	15	20	25	32	40
L	mm	110/115	130	160	160	200
L+unions	mm	169/174	218	260	272	316
H	mm	80.5	83	91.5	119	119
W	mm	80	80	80	102	102
D	inch	3/4	1	1 1/4	1 1/2	2
Connection Thread:		G 3/4B	G 1B	G1 1/4B	G1 1/2B	G 2B
Weight	with unions kg	0.4/0.42	0.83	1.3	2.1	2.6
Weight	without unions kg	0.28/0.30	0.6	0.9	1.5	1.8

Technical Specification

Model Number	WD-15D3			WD-20D3			WD-32D3			WD-32D3			WD-40D3
Nominal diameter(DN)[mm]	15			20			25			32			40
Ratio Q3/Q1	R80	R100	R160	R80	R100	R160	R80	R100	R160	R80	R100	R160	R80	R100	R160
Overload flow rate(Q4)[m³/h]	3.125	3.125	3.125	5	5	5	7.875	7.875	7.875	12.5	12.5	12.5	20	20	20
Permanent flow rate(Q3)[m³/h]	2.5	2.5	2.5	4	4	4	6.3	6.3	6.3	10	10	10	16	16	16
Transitional flow rate (Q2)[m³/h]	0.05	0.04	0.025	0.08	0.064	0.04	0.126	0.1008	0.063	0.2	0.13	0.1	0.32	0.256	0.16
Minimum flow rate(Q1)[m³/h]	0.03125	0.025	0.015625	0.05	0.04	0.025	0.07875	0.063	0.039375	0.125	0.1	0.0625	0.2	0.16	0.1
Accuracy class	2
Maximum permissible error for lower the flow rate zone(MPEt)	±5%
Maximum permissible error for the upper flow rate zone(MPEμ)	±2%for water having a temperature s50℃ ±3%for water having a temperature >50℃

Temperature class	T50
Water pressure classes	MAP 16
Pressure-loss classes	△P63
Indicating range[m³]	99999
Resolution [m³]	0.00005
Flow profile sensitivity classes	U0 D0
Orientation limitation	H

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Phone：+86 （0）25-86618785

Whatsapp:+86 18115602654

Factory 1 Address：No. 5 Industry Building, Yining Industry Zone, Xinjiang, China

Factory 2 Address：Changde Water Meter Smart Technology Industrial Park, No. 9 Gangzhong West Road, Changde, Hunan Province