KM05-08

Rotary Piston Volumetric Water Meter

Name: Rotary Piston Volumetric Water Meter
Rating: 5 (99 reviews)

PREV: Dry Type Vane Wheel Plastic Body Multi Jet Cold Water Meter NEXT:Rotary Piston Volumetric Plastic Body Water Meter Domestic

Description

1. Application

Used for household or residential units to measure, memorize and display the volume of cold water flowing through the pipeline. High measurement grade, high sensitivity, high water quality requirements, small flow metering capacity, the more reliable movement material can meet the higher health and strength requirements, installation orientation is not limited.

2. Features

● Adopting volumetric rotary piston principle of measurement, high precision.

● Register is sealed in the capsule with special liquid ensure a clear reading.

● Non-return valve can keep back the backflow.

● Material: Brass, plastic Body for option.

● Non-return valve is available.

● Un-affected by grit and particulates.

● Provided with lead seal and dustproof cover.

● Confirm to ISO4064.

● Available for IP68.

3. Head Loss Curve

4. Accuracy Error Curve

5. Installation Dimension

Item No		LXH-15	LXH-20	LXH-25	LXH-32	LXH-40
L	mm	115	130	200	200
L1	mm	210	235	320	325
H	mm	85	85	105	105
W	mm	85	85	105	105
Connection Thread	D(mm)	G3/4"	G1"	G1 1/4"	G1 1/2"
Connection Thread	d(mm)	R1/2	R3/4	R1	R1 1/2
Weight	without unions(kg)	1	1.3	2.35	2.5
Weight

6. Main Technical Data

Model number	LXH-15			LXH-20			LXH-25			LXH-32			LXH-40
Nominal diameter (DN)[mm]	15			20			25			32			40
Ratio Q3/Q1	R100	R160	R200	R100	R160	R200	R100	R160	R200	R100	R160	R200	R100	R160	R200
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]	0.04	0.024	0.02	0.064	0.04	0.032	0.1	0.063	0.0504	0.16	0.1	0.08	0.256	0.16	0.128
Minimum flow rate (Q1) [m³/h]	0.025	0.015	0.0125	0.04	0.025	0.02	0.02	0.063	0.039375	0.1	0.0625	0.05	0.16	0.1	0.08
Accuracy class	2
Maximum permissible error for the lower flow rate zone (MPEι)	±5%
Maximum permissible error for the upper flow rate zone (MPEμ)	±2% for water having a temperature ≤30℃ ±3% for water having a temperature ＞30℃
Temperature class	T30,T50
Water pressure classes	MAP 16
Pressure-loss classes	△P63
Indicating range[m³]	99 999
Resolution of the indicating device[m³]	0.00005
Flow profile sensitivity classes	U10 D5
Orientation limitation	ANY

Get in Touch With Us

PALY
VIDEO

Who Are We?

NINGBO JINGCHENG TECHNOLOGY CO.,LTD.

NINGBO JINGCHENG TECHNOLOGY CO.,LTD. is located in Picturesque Jiangbei Investment Park, NINGBO, CHINA. It is a comprehensive high-tech China Rotary Piston Volumetric Water Meter Factory and Custom Rotary Piston Volumetric Water Meter Suppliers that integrates scientific research & development, production, sales, and service. It was established in 2002 as a manufacturer and exporter of the water meter for more than 22 years. The factory covers an area of 40 acres (30000squre meters) 200 staff, 100+ types of products, product capacity of 5 million per year. Its product range covers single jet, multi-jet, volumetric piston type, Woltma type, IC card intelligent water meter, remote control water mater, optoelectrical reading direct remote control water meter, purified water meter and ultrasonic water meter which conform to international standard ISO4064B, C, D grade. We have cooperation with many companies at home and abroad. Our main foreign markets are Asia， Africa， Europe, South America, etc.
"Constantly keep improving, insisting on sincerity and good faith " is our goal. We have passed ISO9001:2015 quantity management system and ISO14001:2015 environment system certifications, ISO 45001:2018 Occupation Health Safety Management System, established strict and scientific quality and operation management control procedures, and guaranteed numerous users ' interest.
Under the background of the Ningbo water meter industry's development, Jingcheng Meter actively researches and develops new products that meet the market demand and environmental protection requirements, and received favorable comments from both new and old customers. Following the operation idea of "technology and quality good, sincere service", we are ready to provide you with high-quality products and services for bright prospects with you hand in hand.

Honors and Qualifications

Every certificate has witnessed our speciality.

Explore More

Our News

Follow company information and understand industry trends.

Explore More

Complete Ultrasonic Water Meter Solutions from a 22-Year China Manufacturer
2026-10-26
How the Transit-Time Ultrasonic Water Meter Measures Flow The transit-time method is the dominant measuring principle used in modern ultrasonic wate...
Who Is Responsible for the Water Meter in Your House? A Manufacturer's Guide
2026-10-19
The short answer: ownership usually follows the meter, the property line, and the local tariff For most single-family houses, the water utility owns ...
What Runs Your Water Bill Up the Most? A Manufacturer's Troubleshooting Guide
2026-10-12
If your water bill suddenly jumps from $60 to $140 and no one filled a pool, the cause is almost never the water company. In most homes, the single l...
What Is a Water Meter? Types, Working Principles, Selection, and Smart Metering Guide
2026-10-05
At a factory gate in Ningbo, a pallet of DN15 water meters waits for final inspection. A technician opens a valve, watches the register advance, and ...