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Ultra Low Flow AQUAMIST Nozzles 

Type ULF AM30 

Automatic (Closed)

Page 1 of 2 

FEBRUARY 2016 

TFP2201

IMPORTANT

Always refer to Technical Data 

Sheet TFP700 for the “INSTALLER  

WARNING” that provides cautions 

with respect to handling and instal-

lation of sprinkler systems and com-

ponents. Improper handling and 

installation can permanently damage 

a sprinkler system or its compo-

nents and cause the sprinkler to fail  

to operate in a fire situation or cause  

it to operate prematurely.

Worldwide 

Contacts

www.tyco-fire.com

General 

Description

TYCO Ultra Low Flow AQUAMIST 

Nozzles Type ULF AM30 are closed 

(automatic) nozzles intended for use 

with engineered, water-mist systems. 

They are low-pressure nozzles that 

utilize a single fluid jet impinging on a 

diffuser to produce a spray having a 

range of water droplet sizes suitable 

for the control of Class A fires and the 

protection of data centers.
It is recommended that the end user 

be consulted with respect to the suit-

ability of the materials of construction 

for any given corrosive environment. 

The effects of ambient temperature, 

concentration of chemicals, and gas/

chemical velocity should be consid-

ered, at a minimum, along with the cor-

rosive nature to which the nozzles may 

be exposed.

NOTICE

The TYCO Ultra Low Flow AQUAMIST 

Nozzles Type ULF AM30 de scribed 

herein must be installed and maintained 

in compliance with this document and 

with the applicable standards of the 

National Fire Protection Association 

(NFPA), in addition to the standards 

of any authorities having jurisdiction. 

Failure to do so may impair the perfor-

mance of these devices.
The design of individual water mist 

systems can vary considerably, 

depending on the characteristics and 

nature of the hazard and the basic 

purpose of the water mist system. 

Because of these variations, the design 

of water mist systems for fire protec-

tion must only be performed by expe-

rienced designers who thoroughly 

understand the limitations as well as 

capabilities of such systems.
The owner is responsible for main-

taining their fire protection system 

and devices in proper operating con-

dition. Contact the installing contrac-

tor or product manufacturer with any 

questions.

Approvals

The TYCO Type ULF AM30 AQUA-

MIST Nozzles in a 57°C (135°F) tem-

perature rating and in a natural brass 

finish is VdS approved when used as 

part of an engineered wet pipe low 

pressure system. Testing was per-

formed in accordance with VdS Test 

Protocol, “Fire tests for false floors and 

false ceilings as a completion of the fire 

tests ‘Office, OH1’ and similar,” dated 

December 6, 2007.
The TYCO Type ULF AM30 AQUA-

MIST Nozzles  in a 57°C (135°F) or 

68°C (155°F) temperature rating and in 

a natural brass finish are FM Approved 

for the protection of data processing 

equipment rooms/halls in either wet 

pipe or single-interlock preaction con-

figurations. Testing for the single-inter-

lock preaction data center application 

was conducted in accordance with FM 

Approvals 5560 “Approval Standard for 

Water Mist Systems.”

Technical 

Data

Discharge Coefficient

K=8,5 lpm/bar

1/2 

(K=0.59 gpm/psi

1/2

)

Thread Connection

1/2 Inch NPT

Finish

Natural Brass

Temperature Ratings

Refer to Table A

Physical Characteristics

Frame  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass 

Strainer . . . . . . . . . . . . . . . . . . . . . . . . . .  Copper 

Orifice Insert . . . . . . . . . . . . . . . . . . . . . . .Bronze 

Button . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze 

Sealing Assembly  . .Beryllium Nickel w/TEFLON 

Ejection Spring . . . . . . . . . . . . . .  Stainless Steel 

Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glass 

Diffuser . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze 

Loading Screw  . . . . . . . . . . . . . . . . . . . . .Bronze

The smallest waterway (orifice) diam-

eter of the Orifice Insert is nominally 

4,4 mm (0.172 in.). The diameter of the 

Inlet Strainer perforations is nominally 

3,2 mm (0.125 in.).

Design 

Criteria

Obtain guidance for the design of a 

water mist system that utilizes the 

TYCO Ultra Low Flow AQUAMIST 

Nozzles Type ULF AM30 from the Tech-

nical Services department.

Temperature 

Rating

Bulb 

Fluid Color

57

°

C (135

°

F)

Orange

68

°

C (155

°

F)

Red

79

°

C (175

°

F)

Yellow

93

°

C (200

°

F)

Green

141

°

C (286

°

F)

Blue

182

°

C (360

°

F)

Mauve

TABLE A 

TEMPERATURE RATING 

SELECTION

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