The Reliable Automatic Sprinkler Co., Inc.,
103 Fairview Park Drive, Elmsford, New York 10523
Model GFR VELO–ECOH
Extended Coverage
Ordinary Hazard
Upright Sprinkler
Bulletin 165 Rev
. E
Bulletin 165 Rev. E
Model GFR VELO–ECOH Upright
(SIN R6553) Standard Response
Features
1. Provides Extended Coverage Ordinary
Hazard protection to 400 ft
2
(37.2m
2
) per
sprinkler.
2. Very Extra Large Orifice of Nominal K=14.0
(200) results in low pressures.
3. 212°F (100°C) and 165°F (74°C) temperature
rating.
4. Available in brass, chrome, black plated and
polyester coated finishes.
5. Can be used for all editions of NFPA 13.
Listings & Approvals
1. Listed by Underwriters Laboratories, and UL certified
for Canada (cULus)
2. NYC MEA 258-93-E
UL Listing Category
Sprinklers, Automatic and Open Extended Coverage
Sprinklers— Ordinary Hazard Occupancy
UL Guide Number
VNIV
Product Description
The Reliable Model VELO-ECOH Extended Coverage Sprin-
kler has a very extra large orifice, Nominal K=14.0 (200). It can
provide Ordinary Hazard protection to 400 ft
2
(37.2 m
2
) at lower
pressures than an XLO which has a K=11.2 (160.2).
The Model GFR VELO-ECOH Sprinklers provide protection in
Ordinary Hazard Group 1 and 2 Occupancies to 400 ft
2
(37.2m
2
)
per sprinkler when the system is designed to NFPA 13 hydraulic
density requirements.
Model GFR VELO-ECOH Upright Sprinklers are to be installed
according to the design criteria shown in this bulletin. The use
of ECOH sprinklers can provide opportunities for lower system
installation costs by requiring fewer sprinklers, less piping and
reduced labor.
Model GFR VELO-ECOH Sprinklers use a levered fusible alloy
solder link.
Model GFR VELO-ECOH Upright
Design Criteria
Reliable Model GFR VELO-ECOH sprinklers are to be used
in systems designed and installed in accordance with NFPA 13
and all other local codes and ordinances. The following design
criteria also apply:
• Minimum sprinkler spacing is 12’ (3.6 m).
• Minimum flow requirement is shown in the Flow Re-
quirements Table on the reverse side.
• ECOH sprinklers are only to be used in systems hy-
draulically designed per NFPA 13, and for a minimum
area of 1,500 ft
2
(139.4 m
2
) or 5 sprinklers, whichever
is greater.
• Deflector to commodity clearance shall be a minimum
of 18” (457mm).
• ECOH sprinklers shall be installed in unobstructed
constructions as defined in NFPA 13.
• Sprinklers can be installed under a sloping ceiling not
exceeding 2” (50.8mm) of rise in 12” (305mm).
• Maximum working pressure is 175 psi (12 bar) at the
sprinkler.
