Gas Pressure Regulator GDJ

Precise pressure regulation over wide turndown ranges
Compensated for varying inlet pressure
Inlet pressure to 5 psig (350 mbar)
Internal safety diaphragm
Wide selection of outlet pressure ranges
Inlet pressure compensation and zero shut-off
CSA approved
CE certified models available

Learn More:
Description Documentation Ordering Information Accessories

Ordering Information								Alternate Product
Model	Model	Connection	Max Inlet pressure	Pressure Test point	Air/Gas	Lead Time	Cart		Model	Outlet Pressure	Order
GDJ 15TN04-0^† Connection: ½″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Gas	GDJ 15TN04-0^†	½″ NPT internal thread	5 psig (350 mbar)	No	Gas	N/A	Not Available
GDJ 20TN04-0^‡ Connection: ¾″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Gas	GDJ 20TN04-0^‡	¾″ NPT internal thread	5 psig (350 mbar)	No	Gas	N/A	Not Available		R2NB	13-26 mbar
GDJ 25TN04-0^‡ Connection: 1″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Gas	GDJ 25TN04-0^‡	1″ NPT internal thread	5 psig (350 mbar)	No	Gas	N/A	Not Available		R3NB	13-26 mbar
GDJ 40TN04-0^‡ Connection: 1½″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Gas	GDJ 40TN04-0^‡	1½″ NPT internal thread	5 psig (350 mbar)	No	Gas	N/A	Not Available		R4NB	15-30 mbar
GDJ 50TN04-0^‡ Connection: 2″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Gas	GDJ 50TN04-0^‡	2″ NPT internal thread	5 psig (350 mbar)	No	Gas	N/A	Not Available		R6NB	15-30 mbar
GDJ 15TN04-0L^† Connection: ½″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Air	GDJ 15TN04-0L^†	½″ NPT internal thread	5 psig (350 mbar)	No	Air	N/A	Not Available
GDJ 20TN04-0L^‡ Connection: ¾″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Air	GDJ 20TN04-0L^‡	¾″ NPT internal thread	5 psig (350 mbar)	No	Air	N/A	Not Available		R2NB	13-26 mbar
GDJ 25TN04-0L^‡ Connection: 1″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Air	GDJ 25TN04-0L^‡	1″ NPT internal thread	5 psig (350 mbar)	No	Air	N/A	Not Available		R3NB	13-26 mbar
GDJ 40TN04-0L^‡ Connection: 1½″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Air	GDJ 40TN04-0L^‡	1½″ NPT internal thread	5 psig (350 mbar)	No	Air	N/A	Not Available		R4NB	15-30 mbar
GDJ 50TN04-0L^‡ Connection: 2″ NPT internal thread; Max Inlet pressure: 5 psig (350 mbar); Pressure Test point: No; For Air	GDJ 50TN04-0L^‡	2″ NPT internal thread	5 psig (350 mbar)	No	Air	N/A	Not Available		R6NB	15-30 mbar

^†GDJ 15..T models are set at the factory to 20" WC (50mbar).
^‡GDJ 20-50..T models are set at the factory to 36″ WC (90 mbar).

For all other configurations Contact Combustion 911

Description

GDJ regulators are general-purpose regulators for controlling gas pressure to furnace ovens and other gas-consuming appliances. They are suitable for natural, LP, and clean dry bio-gas at inlet pressures up to 5 psig (350 mbar). Special models are available for air.

Documentation

	FAQ: Kromschröder Product Labels and Type Codes (Blog Post)
	Gas Pressure Regulator GDJ Brochure
	Gas Pressure Regulator GDJ Installation Instructions
	Gas Pressure Regulator GDJ Technical Sheet

Accessories

Model and Description	Price	Cart
GDJ ACC 01 Flow limiter	N/A	Not Available
GDJ 15 SPRING 01 Spring 1-6″ w.c. (2-16 mbar), yellow	N/A	Not Available
GDJ 15 SPRING 02 Spring 4-8″ w.c. (10-20 mbar), black	N/A	Not Available
GDJ 15 SPRING 03 Spring 7-11″ w.c. (16-28 mbar), orange	N/A	Not Available
GDJ 15 SPRING 04 Spring 9-16″ w.c.(22-40 mbar), brown	N/A	Not Available
GDJ 15 SPRING 05^† Spring 16-22″ w.c. (40-55 mbar), l-green/l-blue	N/A	Not Available
GDJ 20/25 SPRING 01 Spring 2-6 ″ w.c. (5-15 mbar), d-green/l-blue	N/A	Not Available
GDJ 20/25 SPRING 02 Spring 4.8-10 ″ w.c. (12-25 mbar), black	N/A	Not Available
GDJ 20/25 SPRING 03 Spring 9-14 ″ w.c.(22.5-35 mbar), d-green/brown	N/A	Not Available
GDJ 20/25 SPRING 04 Spring 12-20 ″ w.c. (30-50 mbar), d-green/orange	N/A	Not Available
GDJ 20/25 SPRING 05 Spring 18-26 ″ w.c. (45-65 mbar), black/l-green	N/A	Not Available
GDJ 20/25 SPRING 06 Spring 24-32 ″ w.c. (60-80 mbar), red/orange	N/A	Not Available
GDJ 20/25 SPRING 07^† Spring 30-40 ″ w.c. (75-100 mbar), pink/gold	N/A	Not Available
GDJ 20/25 SPRING 08 Spring 40-64.2 ″ w.c. (100-160 mbar), yellow/orange	N/A	Not Available
GDJ 40 SPRING 01 Spring 2-6 ″ w.c. (5-15 mbar), black/l-blue	N/A	Not Available
GDJ 40 SPRING 02 Spring 4.8-10 ″ w.c. (12-25 mbar), black/l-green	N/A	Not Available
GDJ 40 SPRING 03 Spring 9-14 ″ w.c. (22.5-35 mbar), silver/orange	N/A	Not Available
GDJ 40 SPRING 04 Spring 12-20 ″ w.c. (30-50 mbar), black/brown	N/A	Not Available
GDJ 40 SPRING 05 Spring 18-26 ″ w.c. (45-65 mbar), red/gold	N/A	Not Available
GDJ 40 SPRING 06 Spring 24-32 ″ w.c. (60-80 mbar), black/orange	N/A	Not Available
GDJ 40 SPRING 07^† Spring 30-40 ″ w.c. (75-100 mbar), pink/silver	N/A	Not Available
GDJ 40 SPRING 08 Spring 40-64.2 ″ w.c. (100-160 mbar), grey/gold	N/A	Not Available
GDJ 50 SPRING 01 Spring 2-6 ″ w.c. (5-15 mbar), white/brown	N/A	Not Available
GDJ 50 SPRING 02 Spring 4.8-10 ″ w.c. (12-25 mbar), white/d-blue	N/A	Not Available
GDJ 50 SPRING 03 Spring 9-14″ w.c. (22.5-35 mbar), white/d-green	N/A	Not Available
GDJ 50 SPRING 04 Spring 12-20″ w.c. (30-50 mbar), white/red	N/A	Not Available
GDJ 50 SPRING 05 Spring 18-26″ w.c. (45-65 mbar), white/orange	N/A	Not Available
GDJ 50 SPRING 06 Spring 24-32″ w.c. (60-80 mbar), d-blue/gray	N/A	Not Available
GDJ 50 SPRING 07^† Spring 30-40″ w.c. (75-100 mbar), grey/gold	N/A	Not Available