Import Diaphram Gas Meter — Buy in Bulk from Supplier in China

The Diaphram Gas Meter from Longreen Technology Development Limited is a positive displacement meter that measures gas volume using flexible diaphragms that expand and contract with gas flow. It is designed for natural gas, coal gas, and LPG applications, with measurement ranges from 1.6 to 25 cubic metres per hour. Accuracy is typically ±2% within the calibrated range, and the meter operates without external power, relying on mechanical displacement.

The internal mechanism consists of two or four chambers with elastomeric diaphragms connected by a central linkage. The housing is cast aluminium or engineered polymer, rated for operating temperatures from -10°C to +50°C. Standard models comply with EN 1359 and OIML R137 for gas metering accuracy. The meter includes a mechanical counter with resettable and non-resettable registers, and optional pulse output for remote monitoring.

This meter is commonly used in residential gas installations, small commercial boilers, and industrial process lines requiring basic consumption tracking. Buyers in Southeast Asia, Africa, and Eastern Europe often source these units for municipal gas distribution projects. Packaging is in sealed plastic and cardboard boxes with foam cushioning. Trade terms are typically FOB Shenzhen, with lead times of 3 to 5 weeks for standard models and payment via T/T or L/C.

Longreen Technology Development Limited is a registered entity based in Shenzhen, Guangdong, with a physical address listed in the Baoan District. It is classified as an imported supplier with harbor trust tier, indicating compliance with export documentation but no verified manufacturing facility. The listing provides no information on factory size, workforce, or years in business.

There is no public evidence of ISO certification, in-house testing lab, or R&D department. The company does not disclose supplier relationships or production capacity. Buyers should treat this as a trading company sourcing meters from third-party manufacturers in China. Request factory audit reports, serial number traceability, and calibration certificates before placing orders.