Coliter ® Mechanical Lockout Stop Valve, 1.6MPa, -20–110°C, Lead-Free Brass, BSP Threaded
JZ1018 Mechanical Lockout Stop Valve – Tamper-Proof Brass Stop Valve for Water Systems
The Coliter® JZ1018 Mechanical Lockout Stop Valve is a specialized brass stop valve designed for secure shut-off and tamper-resistant isolation in residential and commercial water systems. Featuring a forged lead-free brass body and a mechanical slide-lock mechanism, it prevents unauthorized operation—ideal for utility meter installations, rental properties, or public facilities. Rated for a nominal pressure of 1.6 MPa, it handles water, non-corrosive liquids, and saturated steam within a temperature range of -20°C to 110°C. The valve complies with WRAS and GB/T 17241 standards for potable water safety and features full-port flow for minimal pressure drop. Threaded ends conform to ISO 228 (BSP parallel), with standard sizes DN15 (G1/2") and DN20 (G3/4"). Its compact design, reliable sealing, and integrated lockout function make it a trusted choice for plumbers and water utilities seeking durability, safety, and controlled access.
Installation diagram
Product Description
| DN | G | D | L | H |
| 15 | 1/2" | 13 | 46 | 65 |
| 20 | 3/4" | 16 | 54 | 70 |
Technical Specifications
Nominal Pressure:1.6 MPa
Working Medium:Water, Non-corrosive Liquids, Saturated Steam
Working Temperature:-20℃ ≤ t ≤ 110℃
Pipe Threads:ISO 228
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Faq - Frequent questions
Introduction to Stop Valve
Coliter® offers a specialized range of brass stop valves designed for reliable shut-off and secure isolation in residential and commercial water systems. The series includes the JZ1003 and JZ1005 standard compression-type stop valves with forged brass bodies for leak-free performance, the JZ1018 mechanical lockout stop valve featuring a tamper-proof slide lock to prevent unauthorized operation, and meter-lead compatible models ideal for water meter installations. All valves are made from lead-free brass, comply with WRAS and GB/T 17241 standards for potable water, and operate up to PN16 (1.6 MPa) and 120°C. With compact design, full-port flow, and ISO 228 threads, they are trusted by plumbers and utilities for durability, safety, and easy maintenance.
