Coliter ® Brass Stop Valve, 1.6MPa, -20–120°C, Lead-Free, BSP Threaded
JZ1003 Brass Stop Valve – Compression-Type Shut-Off Valve for Water and Steam Systems
The Coliter® JZ1003 Brass Stop Valve is a compact, compression-type shut-off valve engineered for reliable isolation in residential and commercial plumbing systems. Made from high-quality forged lead-free brass, it delivers leak-free performance and long service life under demanding conditions. Rated for a nominal pressure of 1.6 MPa, it is suitable for use with water, non-corrosive liquids, and saturated steam within a temperature range of -20°C to 120°C. The valve complies with international potable water standards including WRAS and GB/T 17241. Featuring a full-port design to minimize flow resistance and ISO 228 (BSP parallel) threads, it is available in sizes DN15 (G1/2") through DN50 (G2"). Its simple, robust construction and smooth handwheel operation make the JZ1003 a trusted choice for plumbers and facility managers requiring dependable on/off control and easy maintenance.
Installation diagram
Product Description
| DN | G | D | L | H | A |
| 15 | 1/2" | 12 | 46 | 66 | 55 |
| 20 | 3/4" | 16 | 54 | 72 | 55 |
| 25 | 1" | 20 | 66 | 80 | 60 |
| 32 | 1¼ | 25 | 77 | 88 | 78 |
| 40 | 1½ | 33 | 84 | 95 | 78 |
| 50 | 2" | 43 | 103 | 113 | 100 |
Technical Specifications
Nominal Pressure:1.6 MPa
Working Medium:Water, Non-corrosive Liquids, Saturated Steam
Working Temperature:-20℃ ≤ t ≤ 120℃
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.
