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© 2018 | Minimax Fire Protection | 321 Industrial Park Dr. | Hastings, MI 49058 | www.minimax-fire.com
Form No. FX_012798 18.12.04 Rev 18.1
Technical Data Sheet: Sprinkler Guards
1. DESCRIPTION
The Minimax Fire Protection Sprinkler Guard is a hard-wire cage designed to encase the
sprinkler and protect it from mechanical damage. It is recommended for areas where the
sprinkler is installed at a low elevation and/or near areas of high human or mechanical
activity.
The Model MG-4 and MG-5 Sprinkler Guard is for use with standard, large, and extra-
large orifice standard and quick response upright and pendent frame style sprinklers.
The Dry Pendent Sprinkler Guard is for use with standard and large orifice, standard and
quick response dry pendent sprinklers.
2. LISTINGS AND APPROVALS
MG-4 and MG-5 Sprinkler Guards
cULus Listed:
Category VFJV
FM Approved:
Class 2091
cULus Listed and/or FM Approved for use with standard, large orifice, and ELO standard
and quick response upright and pendent frame style sprinklers, including the following:
MX8100, MX8102, MX8200, MX8202, MX8300, MX8302, MX8350, MX8352, MX8377,
and MX8536.
Dry Sprinkler Guard: No Listing or Approvals
3. TECHNICAL DATA
Specifications:
Model MG-4 and MG-5 Sprinkler Guards
Dimensions: 3-1/8” (79 mm) diameter, 3-1/8” (79 mm) high.
Material Standards - MG-4 and MG-5
Guard: Bright Basic Steel UNS-G10100
Guard Finish: Clear Chromate over Zinc Plating
Screws: Two Self-Tapping 6-32 (Combination Head): Steel
Screw Finish: Zinc Plated
Material Standards - Dry Sprinkler Guard:
Guard and Ring: Bright Basic Steel UNS-G10100
Finish: Clear Chromate over Zinc Plating
Ordering Information:
NOTICE
The MG-4 and MG-5 Sprinkler Guards are NOT designed to be used on sidewall sprinklers, or sprinklers installed in recessed escutcheons.
TABLE 1: ORDERING INFORMATION
Sprinklers can be ordered separately or with the MG-4 or MG-5 Guards factory installed.
Refer to the appropriate sprinkler Technical Data Page for sprinkler ordering information.
To order the guard factory installed, first determine the sprinkler part number then add the suffix “G” to the end.
Part Number
Description
61387
Model MG-4 Guard (also fits Large Orifice K8.0 3/4” NPT Sprinklers)
61388
Model MG-5 Guard (used for Extra Large Orifice sprinklers)
61390
MS-1 Water Shield (used with upright sprinklers with MG-4)*
61880
MS-2 Water Shield (used with 1/2” pendent sprinkler with MG-4 Guard)*
61389
MS-2 Water Shield (used with 3/4” pendent sprinkler with MG-4 or MG-5 Guards)*
61881
Dry Sprinkler Guard**
Sprinkler Wrenches
21475MB
Wrench for frame-style sprinklers with MG-4 Guard
20415MB
Wrench for ELO sprinklers with MG-5 Guard
* See Form FX_012498
**The Dry Sprinkler Guard has no listings or approvals.
MG-4 and MG-5 Sprinkler Guard
Dry Sprinkler Guard
