Coliter ® F-Type Gas Tee Ball Valve, 0.015MPa, -20–60°C, GB/T 196 Threaded
QF3131 F-Type Gas Tee Ball Valve – Brass 3-Way Shut-Off Valve for Low-Pressure Gas Meter and Appliance Branch Connections
The Coliter® QF3131 F-Type Gas Tee Ball Valve is a specialized brass 3-way ball valve designed for low-pressure gas distribution systems, commonly used to create a branch connection from a main gas line—such as between a gas meter and household appliances. Its "F-type" tee configuration features three ports: one inlet and two outlets, allowing selective shut-off of gas flow to individual lines while maintaining supply to others. Constructed from high-quality forged brass with PTFE seals, it ensures reliable, leak-tight performance in natural gas, manufactured gas, and liquefied petroleum gas (LPG) applications. Rated for a nominal pressure of 0.015 MPa and operating temperatures from -20°C to 60°C, it meets safety standards for residential gas installations. Threaded ends conform to GB/T 196 (compatible with ISO 228 parallel threads), with standard size DN15. The quarter-turn handle includes a clear open/close indicator for safe, intuitive operation.
Installation diagram
Product Description
| DN | G | M | H | A |
| 15 | 2-Ø1.5 | 30x2 | 62.8 | 55 |
Technical Specifications
Nominal Pressure: 0.015MPa
Working Medium: Natural Gas, Manufactured Gas, Liquefied Petroleum Gas (LPG)
Working Temperature: -20℃ ≤ t ≤ 60℃
Pipe Threads: GB/T 196
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Introduction to Couplings For Gas Meters
Coliter®’s couplings for gas meters are precision-engineered brass fittings designed for secure, leak-free connections between gas meters and supply lines in residential and utility applications. The series includes the standard GJ3101 brass gas coupling and the enhanced GJ3102 extended anti-theft gas fitting, featuring a tamper-resistant design that prevents unauthorized removal or bypass. Both models are made from high-quality forged brass, comply with national gas piping standards, and support working pressures up to 0.1–0.5 MPa with operating temperatures from -20°C to +60°C. With ISO 228 parallel threads (e.g., G1/2", G3/4"), they ensure reliable sealing, corrosion resistance, and long-term safety—essential for gas utilities, smart metering projects, and regulatory-compliant installations.
