Ratio Reducing Valves - Code 61

Parker Conflow’s Code 61 is a compact, in-line ratio reducing valve which reduces downstream fluid pressure to safe and appropriate pressures for equipment to operate. It is effective in reducing downstream fluid pressure in underground mines by a set proportion and to a fixed ratio, making no allowance for inlet pressure variations.

Its in-line design reduces the risk of damage to the valve and it is also extremely robust – the High Pressure version being manufactured from stainless steel.

The Code 61 valve is ideal for use where the inlet pressure is fairly constant or where pressure reduction is required but does not need to be closely maintained. It is widely used at the shaft bottom, before distribution throughout the mine.

Code 61 is available in four sizes 1/2", 1", 1 1/2", 2", 3" and 4" and operates at a maximum working pressure of 105 bar. High Pressure Units can be selected up to 350 bar (1/2”) and 206 bar (1”). Ratio reduction is provided from 1.1:1 to 20:1 of inlet pressure.

Markets:
• Quarrying
• Mining

Features/Benefits:
• Pressure ratio is constant.
• Suitable for use with water and oil
• Compact in-line fitting, reduces risk of damage.
• Low maintenance.
• Available in both low and high pressure.
• Cast body and steel – robust and low maintenance.
• Stainless steel version for high pressure appliocations.

Applications:
• To reduce the water mains pressure in underground mines at the shaft bottom before distribution throughout the mine. This is particularly useful in deep mines where the pressure head is high or where the pipe systems are not suitable for high pressures.
• To control pressure in fire fighting systems.