1. Introduction

 It is a one-piece security and sealing component for water meters, usually made of 300-series stainless steel (e.g., 304). It mainly fixes and seals the water meter movement and shell to ensure leak-proof operation and anti-tampering, which is essential for water meter stability. Here is a detailed introduction:

1. Core Structure: Most are integrated structures without redundant welding parts. The top often has a inward-bent pressure ring to press the water meter's internal sealing ring; the inner wall is equipped with trapezoidal internal threads for stable connection with the meter body, and some have notched rear flanges or outer grooves to facilitate tool-assisted installation and tightening.

2. Key Advantages: It has superior corrosion resistance, so it is suitable for harsh environments such as coastal areas without galvanic corrosion caused by dissimilar metals. Its optimized thread and integral design enhance structural strength, which can resist water pressure and avoid seal failure. Besides, it is easy and low-cost to install, and some models support tool-free or keyless installation with retained locks to prevent parts loss. It also has a permanent sealing tab to prevent tampering and ensure accurate water metering.

2. Application

It is widely used in residential, municipal and industrial water meter assemblies. It matches most ring-type water meter sockets and is especially suitable for wet-type water meters and buried water meters that require high sealing and corrosion resistance. It can also be adapted to different water meter specifications by matching standard or short-length barrel locks.

3. Size