Quality Assurance
As a professional water meter manufacturer, Langhua has over 57 years of experience. Our factory, spanning 26,000 square meters with an existing building area of 12,000 square meters and a new building area of 10,000 square meters, is equipped with 15 water meter production lines. With more than 280 employees across departments like sales, R&D, quality control, and production, our comprehensive annual production capacity exceeds 3 million units. We are committed to delivering high-quality flow meters, providing reliable and efficient products and services to our clients. Our manufacturing process covers everything from raw material procurement and component injection molding to core assembly, complete unit assembly, final inspection, packaging, and shipping.
Our mature production and inventory system ensures the capability for mass production, guaranteeing rapid delivery times. Our annual production includes:
Injection molding line
Assembly line 
Meter calibration line
Flow meter mold production line
Various injection molding machine
Laser machines
Ultrasonic plastic welding machine
CNC lathe
CNC engraving machine
Engraving and milling machine
CNC wire cutting EDM machines
Reciprocating wire cutting EDM machines
Horizontal spindle grinding machine
Radial drilling machine
Vertical lifting table milling machine with digital display
Universal lifting table milling machine
Vertical lifting table milling machine
Jig boring machine
Lathe
Surface grinding machine with horizontal spindle and rectangular table
Metal band sawAs a water meter manufacturer with many years of experience in the industry, our commitment has always been to deliver exceptional quality and reliability. We know that when it comes to making products people rely on, quality isn't something minor, it's everything. That's why we've developed a rigorous quality control process to ensure every water meter that leaves our factory is up to our clients’ expectations.
Excellence in water meters design
Our water meter designs are the result of meticulous research and optimization, ensuring accurate measurements in various applications. Our design team is dedicated to continuous innovation to meet the evolving demands of the market.
Rigorous material selection
At Langhua, we're meticulous about the materials we use. Our priority is to ensure they're not just tough and long-lasting, but also resistant to corrosion. We choose only materials that meet international standards, so our water meters maintain their excellent performance over many years.
Strict production workflow
Our manufacturing process sticks closely to ISO quality management standards. Every water meter we produce goes through multiple inspections and tests, guaranteeing the highest level of performance and precision. Our production team is a group of seasoned professionals, armed with extensive experience and skills.
Our water meters undergo a thorough quality inspection process, which includes performance testing, water quality testing, and reliability testing. This rigorous approach ensures that each water meter we produce meets the highest standards of quality and durability. Additionally, we are proud to hold various international and industry-specific certifications. These certifications are a testament to our commitment to excellence and to meeting the top standards of the water meter industry.
195A universal tool microscope (to measure product dimensions) 
M7160 large tool microscope (to measure product dimensions) 
Spectrum analyzer (to analyze metal content measurements of housings) 
DN65~80 large diameter water meter calibration device (to test the accuracy of large diameter water meters) 
DN100~125 large diameter water meter calibration device (to test the accuracy of large diameter water meters)
DN150~300 large diameter water meter calibration device (to test the accuracy of large diameter water meters)
DN50~65 pressure test bench (to test the pressure resistance of water meters, and check whether there’s water leakage) 
DN80~300 pressure test bench (to test the pressure resistance of water meters, and check whether there’s water leakage) 
DN15~50 pressure test bench (to test the accuracy of small diameter water meters) 
DN15~25 pressure test bench (to test the accuracy of small diameter water meters)
DN15~50 pressure test bench (to test the accuracy of small diameter water meters) 
195A universal tool microscope (to measure product dimensions) Whether you're curious about the latest in smart water meter technology or need guidance on choosing the right meter for your needs, we're here to help. Contact Langhua for expert advice and information on our range of water meter solutions.
We are a professional electricity meter manufacturer and supplier.
Since 1966, Lianyungang Water Meter Co., Ltd. has been an innovation in water meter technology. Based in Jiangsu Province, we're recognized as a high-tech enterprise for our innovative and reliable solutions. We combine decades of experience with a commitment to quality, making us a trusted choice for customers worldwide. Langhua is not just about water meters; it's about delivering efficient and accurate water management tools.
Company experience
58+
Established in 1966, Lianyungang Water Meter Co., Ltd. has been at the vanguard of the water meter industry for over 57 years. Our journey from a modest beginning to a nationally recognized high-tech enterprise in Jiangsu Province exemplifies our commitment to quality and customer satisfaction.
Annual output
3,000,000+
Thanks to our advanced manufacturing facility and advanced production lines, we can achieve an annual output of over 3 million water meters. This capacity reflects our excellent manufacturing capabilities and our ability to meet the growing demands of both national and international markets.
OEM Service
Our OEM services demonstrate our flexibility and expertise in customization. Catering to a broad range of needs, we've provided hundreds of companies with tailor-made water meters, ensuring precise measurements and durability across various applications.
Smart Water Meters
Renowned for our expertise since 1966, Langhua offers a comprehensive array of water meters. From the simplest residential meters to complex industrial solutions, our products embody innovation, durability, and accuracy, serving a diverse global market.
