#10001 Gas Regulators

CHT Pressure Regulator

RTZ1-20/0.4L-CHT

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The CHT series pressure regulators feature a two-stage pressure-reducing structure. They incorporate a unique first-stage pre-reduction and pressure-stabilizing function, combined with built-in relief and overpressure shut-off capabilities, ensuring superior stability and enhanced safety during operation. These regulators are suitable for building-level pressure regulation or small commercial users.

Technical Specifications

Maximum allowable inlet pressure	4 bar
Inlet pressure range	0.1–4 bar
Outlet pressure range	20–70 mbar
Pressure regulation accuracy class	AC 5
Lock-up pressure class	SG 15
Operating temperature	-20℃～60℃
Connection size (thread)	3/4" x 1 1/4"

Flow Reference Table

Nm³/h	Outlet Pressure (bar)
Inlet Pressure (bar)	CHT25A				CHT70				CHT100XY
Inlet Pressure (bar)	0.02	0.03	0.05	0.07	0.02	0.03	0.05	0.07	0.02	0.03	0.05	0.07
0.1	12	10	8	5	25	25	20	15	25	25	20	15
0.3	17	17	15	12	50	45	40	40	55	50	45	45
0.5	25	25	23	20	70	70	65	55	75	75	70	70
0.75	25	25	25	23	70	70	70	65	75	75	75	70
1-4	25	25	25	25	75	75	70	70	100	100	100	100
Note: The flow rates in the table are based on natural gas with a relative density of 0.6 under standard conditions.

Main Regulator Spring Reference Table

Spring Color Code	Spring Parameters			CHT25A	CHT70	CHT100XY
Spring Color Code	D	De	Lo	CHT25A	CHT70	CHT100XY
Red	1.5	30	90	-	19–23 mbar	19–23 mbar
Green	1.6	30	90	17–22 mbar	22–26 mbar	22–26 mbar
Yellow	1.7	30	90	21–25 mbar	25–31 mbar	25–31 mbar
Blue	1.8	30	90	25–31 mbar	30–36 mbar	30–36 mbar
Red	1.9	30	90	31–40 mbar	33–42 mbar	33–42 mbar
Light Green	2.0	30	90	39–50 mbar	42–52 mbar	42–52 mbar
Black	2.4	30	90	50–70 mbar	50–70 mbar	50–70 mbar

Shut-off Spring Reference Table

Spring Color Code	D	DE	HE	CHT25A	CHT70	CHT100XY
Silver White	1.1	15	24	27–60 mbar	27–60 mbar	27–60 mbar
Silver White	1.4	15	24	50–210 mbar	50–210 mbar	50–210 mbar