Excess Flow Valves with a nominal gas flow rate of 6m³/hr in 25mm.
Excess Flow Valves are installed into systems that use non-metal pipes, in order to make them safe against the risk of explosion due to fire. They protect the system and guarantee safety against:
– tampering by unauthorised personnel
– breakage/disconnection of hoses for gas appliances
– breakage of pipes due to natural disasters
Excess Flow Valves are maintenance free and cannot be disabled by an external action. They can handle inlet pressures from 1.5kpa to 10kpa and are designed to shut of at 1.3 to 1.45 times the total flow rate of the pipeline they are installed into.
Please note that Excess Flow Valves are Directional, and must be mounted as per their specification.
The two options include:
– Vertical Up and Horizontal
– Vertical Down
Excess Flow Valves can only be installed outside.
Use this table below to choose the best Excess Flow Valve for your requirements.
| DN Size (mm) |
Valve Nominal Flow Rate (m3/hr) (label colour) |
Natural Gas | LPG | ||
| Main pipeline (MJ/hr) | Branch pipeline (MJ/hr) | Main pipeline (MJ/hr) | Branch pipeline (MJ/hr) | ||
| 15, 20 & 25 | 2.5 (yellow) | 65 to 98.1 | 50.9 to 77.9 | 97.2 to 156.8 | 72.4 to 110.9 |
| 20 & 25 | 4 (brown) | 98.2 to 157 | 78 to 124.6 | 156.9 to 250.8 | 111 to 177.4 |
| 25 | 6 (green) | 158 to 235.5 | 124.7 to 186.9 | 250.9 to 376.2 | 177.5 to 266 |
| 32 | 10 (red) | 235.6 to 392.5 | 187 to 311.5 | 376.3 to 627.1 | 267 to 443.4 |
| 40 & 50 | 16 (orange) | 392.6 to 627.9 | 311.6 to 498.4 | 627.2 to 1003.3 | 443.5 to 709.4 |
MINISIT DECAL 120-200C
EUROSIT TOP COVER FOR 0.630.534
ADAPTOR PRIMUS INTERNAL VALVE
FLARE BY FLARE ELBOW 1/4
GAS SEAL LOCKTYPE GAS THREAD SEALANT 100G
CYLINDER ADAPTOR COMP F x PRIMUS F
BURNER DOUBLE RING 20mj/hr for LPG with Hose and Regualtor
Mongolian Burner 10 Jet LPG
BRAIDED HOSE SS 20MM x 3/4F&F x 450MM
BAYONET HEATER HOSE 3M 3/8FBSP
REGO 2nd Stage Regulator 2000MJ/h 5kPa set pressure 3/4" in & 1" out
Pel Pintossi 20S and 21S Gascock Magnet 


