RD025 SSU Fire Sprinkler 3mm FM, UL, LPCB, VdS, CE - Brass

RD025 SSU Fire Sprinkler 3mm FM, UL, LPCB, VdS, CE - Chrome

RD025 SSU Fire Sprinkler 3mm FM, UL, LPCB, VdS, CE

RD025 SSU Upright Quick Response Sprinkler

K factor	80 (5.6)
Standard Orifice Size	15mm (½”)
Standard Thread Size	½” NPT
Response	Quick Response
Bulb	3mm
Maximum Working Pressure	12.1 bar (175 psi)
Finish	Brass, chrome and white paint finish. Special RAL colours available on request
Approvals	FM, UL, LPCB, VdS, CE, UKCA, SBSC, Gost

Temperature

Finish

Quantity

Rapidrop RD025 fire sprinklers are Upright (SSU), quick response, frangible glass bulb automatic sprinklers that are CE, VdS and LPCB approved.

They are standard orifice fire sprinklers for installation in fire sprinkler systems designed in accordance with standard installation rules, e.g. EN12845 or the requirements of the authority having jurisdiction.

SSU Upright sprinklers produce a hemispherical water distribution pattern below the deflector. In the instance of fire, the heat causes the fluid in the glass bulb to expand which shatters the glass and releases the spring seal assembly. Water flows from the orifice onto the sprinkler deflector which diffuses the water into a uniform spray pattern which extinguishes or controls the fire.

Specifications

K factor	K80 (K5.6)
Standard Office Size	15mm (½”)
Thread Size	½”NPT (R½” – ½”BSPT available on special order
Max. Working Pressure	12 bar (175 psi)
Min. Operating Pressure	0.5 bar (7psi)
Factory Pressure Test	100% at 34 bar (500 psi)
Weight	57grams (2oz.)
Fitted with Bulb Protector	Remove after installing sprinkler

Operating Temperatures

Nominal Operating Temperature	Bulb Colour
57ºC (135ºF)	Orange
68ºC (155ºF)	Red
79ºC (175ºF)	Yellow
93ºC (200ºF)	Green
141ºC (286ºF)	Blue

RD025 Design Coverage

Spray Upright for installing only in upright position giving hemispherical discharge below the deflector with little or no water being discharged upwards. For sprinkler coverage area and placement refer to NFPA 13 standards or other installation rules for automatic sprinkler systems as required by the authority having jurisdiction. The following details are provided for information only.

Rapidrop RD025 SSU Fire Sprinkler Head RD025 SSU Sprinkler Design Coverage