Foam Water Sprinkler

OPEN TYPE PENDENT TYPE FOAM WATER SPRINKLER

The Foam-Water Sprinklers are used in the deluge foam system to protect the risk where foam is required to be applied from overhead sprinklers and is to be followed with plain water in a standard sprinkler pattern.

Foam-Water Sprinklers protect the loading and unloading area in the event of a spill fire with low expansion foam systems. These are useful in other wide applications i.e. Air Craft Hangers, Warehousing. Foam-Water Sprinklers are open and air aspirating type.

The pattern of coverage is similar to the conventional sprinkler head. The Foam-Water Sprinkler has standard orifice with K-factor of 42.  Foam-Water Sprinklers are designed to operate at a minimum of 2 bar pressure and maximum of 7 bar.

AUTOMATIC FOAM WATER SPRINKLER

The Sprinklers (Glass Bulb Type), Standard Orifice, Pendent type, design incorporates state-of-the-art, heat responsive, frangible glass bulb design (standard or quick response) for prompt, precise operation. The forged frame is more streamlined and attractive than traditional sand cast frames. It is cast with a hex-shaped wrench to allow easy tightening from different angles.

This sprinkler is available in various temperature ratings and finishes to meet many design requirements. All Sprinklers are manufactured using the time proven Belleville seal used exclusively by all major manufactures to ensure long life and safe operation.

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Features
  • UL Listed/FM Approved.
  • Foam discharge in Spray pattern.
  • Pendant installation.
  • Specially designed for low expansion foam.
  • The deflector is designed to distribute the water in a pattern that is most effective in controlling the fire.
Specifications

 

OPEN TYPE SPRINKLER

CLOSED BULB SPRINKLER

Model

NH-520

NH-550

NH 500, NH-500S

SD1010

Material

Brass, Chrome Finish

 

Brass, Chrome Finish

 

Brass, Stainless Steel

 

Inlet Size

½" NPT

¾" NPT

 

½" NPT

½" NPT

Max. working Pressure

Max. 7 bar

Max. 7 bar

Max. 12 bar (175 psi)

Max. 12 bar (175 psi)

Mounting

Pendent

Pendent

Pendent

Pendent

Operating Pressure

30 – 100 psi

30 – 100 psi

2.1 bar (30 psi) minimum

4.2 bar (60 psi) maximum

7 PSI

K-Factor

2.8

5

K-42 standard

 

5.6

Flow Rate

31 gpm

50 gpm

30 gpm (as per UL)

36 gpm(as per FM)

15gpm

Foam Proportioning

AFFF 3% & 6%, AR-FFF 3/3, 3/6

6

Installation Height

0.9 - 4M

Resources

Product Manual

Download

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