RD021 CUP Fire Sprinkler 3mm LPCB, VdS, CE - Brass

RD021 CUP Fire Sprinkler 3mm LPCB, VdS, CE - Black

RD021 CUP Conventional Sprinkler Quick Response

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	LPCB, VdS, CE, UKCA, SBSC, Gost

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Rapidrop RD021 fire sprinklers are conventional upright pendent (CUP), quick response, frangible glass bulb automatic sprinklers with CE, VdS and LPCB approvals.

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.

CUP sprinklers produce a spherical water discharge pattern. 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.

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

RD021 Design Coverage

Conventional for installing in pendent or upright position giving a spherical discharge with a proportion of water being thrown upwards towards the ceiling. 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 RD021 CUP Fire Sprinkler Head RD021 CUP Sprinkler Design Coverage