YH-216A Brass Excess Flow Shut-Off Valve（F/Hose Connector）

【Core Advantages】
Provides automatic safety protection for indoor gas pipelines. Built‑in excess‑flow mechanism will auto‑shut gas supply once downstream hose/appliance bursts and gas flow exceeds preset value to prevent dangerous leakage. Female‑thread plus hose‑barb for fast connection of rigid pipe and flexible hose. Yellow butterfly handle supports manual on‑off. Two optional shut‑off flow rates (1.2 m³/h,1.5 m³/h) for matching different appliance loads.

【Product Features】
• Nominal Pressure: 0.015 MPa
• Working Medium: Natural gas, Artificial gas, Liquefied petroleum gas
• Working Temperature: -20℃ ≤ t ≤ 80℃
• Flow‑Activated Shut‑off: 1.2 m³/h, 1.5 m³/h
• Parallel Pipe Thread to ISO228

【Applications】
Install at gas meter outlets or before flexible hoses for cookers, water heaters and other gas appliances. Protect system from risks caused by hose rupture, accidental disconnection or damaged appliances.

【FAQs & Solutions】
Q: When will the excess flow valve trip?
A: It auto‑closes when gas flow suddenly exceeds rated shut‑off value (1.2 or 1.5 m³/h) to stop leakage.
Q: How to reset after tripping?
A: First cut upstream gas supply and resolve overflow fault. Reset according to supplier instructions and reopen gas slowly.
Q: Will it interfere with normal appliance operation?
A: No. Normal flow for cooking or heating stays below trip threshold.

【Important Notes】
Only install in gas systems meeting rated pressure (0.015 MPa) and temperature. Run soap‑bubble leak‑test after installation or each reset. Ensure selected shut‑off flow matches total appliance load of protected line. Never modify or tamper with automatic tripping mechanism.