RD020 CUP Fire Sprinkler 5mm LPCB, VdS, CE - Brass RD020 CUP Fire Sprinkler 5mm LPCB, VdS, CE - Black

RD030 CUP Conventional Special Response Sprinkler

  • LPCB Logo Mid grey 566d-03.jpg
  • VdS Logo mid grey 600.jpg
  • CE Logo Mid Grey 144.jpg
  • UKCA black Mid Gray.jpg
  • MiB_Logo_Vertical_Colour.jpg
K factor 80 (5.6)
Standard Orifice Size 15mm (½”)
Standard Thread Size ½” NPT
Response Special Response
Bulb 4mm
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

Rapidrop RD030 fire sprinklers are conventional upright pendent (CUP), special 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.

CUP conventional 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


RD030 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 RD030 CUP Fire Sprinkler HeadRD030 CUP Sprinkler Design Coverage




Rapidrop K80 (K5.6) Sprinkler Flow Characteristics


Minimum Operating Pressure K80 Sprinkler Heads