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.
- 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.
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OPEN TYPE SPRINKLER |
CLOSED BULB SPRINKLER |
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Model |
NH-520 |
NH-550 |
NH 500, NH-500S |
SD1010 |
Material |
Brass, Chrome Finish
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Brass, Chrome Finish
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Brass, Stainless Steel |
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Inlet Size |
½" NPT |
¾" NPT
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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
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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 |
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Installation Height |
0.9 - 4M |
Product Manual |