ITO SGX-Z Range Zero Governor

Manufacturer: I.T.O Corporation
Model: SGX-Z Range

Zero governors maintain a constant outlet pressure regardless of changes to the condition of the inlet pressure and flow rate. Moreover, by combining with other devices, this product keeps a constant mixture ratio of air and gas, and this can make it easy to control combustion temperature automatically.

Specifications

Model	SGX-8NZA	SGX-10ZA	SGX-15NZ	SGX-20NZ	SGX-25NZ	SGX-40NZ	SGX-40Z	SGX-50NZ	SGX-50Z
Inlet Pressure	≦5.00kPa	≦10.0kPa
Outlet Pressure	0±0.10 kPa	0±0.05 kPa	0±0.10 kPa				0±0.05 kPa	0±0.10 kPa	0±0.05 kPa
Lockup Pressure	–	–	0.60 kPa
Connection	Rc 1/4	Rc3/8	Rc1/2	Rc3/4	Rc 1	Rc 1 1/2		Rc2
Vent Connection	Rc 1/8		Rc 1/2	Rc 1/4		Rc3/4		Rc1

Available Configurations at a Glance

Model		SGX-8NZA	SGX-10ZA	SGX-15NZ	SGX-20NZ	SGX-25NZ	SGX-40NZ	SGX-40Z	SGX-50NZ	SGX-50Z
Type A	No Lockup Function (Aluminum Valve Disc Type)	✓ *1	✓ *1	X	✓	✓	✓	✓	✓	✓
Type C	High Temperature Resistance Governor for COG	X	X	✓	✓	✓	X	✓	X	✓

*1 The standard model of SGX-8NZA and SGX-10ZA is Type A.

Gas Mixing by Venturi Mixer

The venturi mixer draws in gas by ejecting air at high pressure through the inner nozzle. The gas pressure is reduced to zero (atmospheric pressure) by the zero governor & makes gas proportional to the amount of air drawn in. The governor maintains constant air and gas ratio even if the amount of air changes due to the opening and closing of the butterfly valve.