Contact our expert team today!

NORTHERN CALIFORNIA BRANCH
468 Yolanda Ave. Suite 201
Santa Rosa, CA 95404
707-575-9117

SOUTHERN CALIFORNIA BRANCH
9087 Arrow Route #130
Rancho Cucamonga, CA 91730
909-476-0085

TEXAS BRANCH
712 N. General Bruce Dr.
Temple, TX 76504
254-481-0087

Notes

Orders placed on the weekend will be processed the next following business day.

Also, express orders placed past 2pm may not be processed the same day PST.

Popular Links

About Fire Safety Supply

Since 1999, Fire Safety Supply has been the go-to for fire suppression products, industrial dry chemical systems, high and low-pressure CO2, vehicles, and clean agents. We serve various types of industries such as restaurants, commercial kitchen, wineries, and more.

Our expert team is factory-trained across all our product lines. Do you have a technical question about a special hazard system? Our knowledgeable staff is just a call away! With extensive industry resources, we are here to help you tackle any fire suppression challenge.

Skip to main content
Free Shipping on Purchases $100+ (48 contiguous states only)
Express orders placed past 2pm may not be processed the same day PST

In business since 1999!

Call 1-800-498-3473

Fire Safety Supply

Single Regulator Field Replacement Kit Installation Instructions

CAUTION!

Immediately after removing high pressure hose from N2 cylinder outlet, make certain safety plug is put in place in outlet. If valve is accidentally operated, velocity of unrestricted escaping gas is forceful enough to cause injury, especially about the face and head.
 
The quick-opening lever may be moved slightly forward, approximately 1/4in. (6.4mm). Forward movement in excess of 1/4in. (6.4mm) may result in actuation of the valve.
150 B Model Wheeled Unit
  • Remove hose from nitrogen cylinder
  • Remove high and low pressure hoses from regulator
  • Remove regulator and support from clamp by removing cap screw
  • Install new support, Part No. 74265, into 1/4in connection on new regulator, opposite of safety relief
  • Install reducing bushing, Part No 19486, into 3/8in, low pressure outlet
  • Remount regulator support into clamp and secure with cap screw and lockwasher
  • Reattach hoses to regulator and nitrogen cylinder
Post-1989 C-Model Wheeled Unit
  • Replace existing regulator with Part No. 416938 regulator
Pre-1988 C Model Wheeled Units
  • Remove hose from nitrogen cylinder
  • Remove high and low pressure hoses from regulator
  • Removeregulator and support from clamp by removing cap screw
  • Install new support, Part No. 74265, into opposite of safety relief
  • Remount regulator support into clamp and secure with cap screw and lockwasher
  • Reattach hoses to regulator and nitrogen cylinder

!