Vk2543 standard response sidewall sprinkler k8
Specifications:
Available since 2005.
Minimum Operating Pressure: 7 PSI (0.5 bar)
Maximum Working Pressure: 175 PSI (12 bar).
Factory tested hydrostatically to 500 psi (34.5 bar)
Thread size: 1” NPT or 25 mm BSPT
Nominal K-Factor: 8.0 U.S. (115.2 metric*) for lengths up to 48”.
* Metric K-factor measurement shown is when pressure is measured in bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Covered by U.S. Patent numbers: 8,636,075 and 8,376,060 and 10,220,231
Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Phosphor Bronze UNS-C51000
Bulb: Glass, nominal 5 mm diameter
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape
Compression Screw: Brass UNS-C36000
Pip Cap and Adapter: Brass UNS-C36000
Orifice: Copper UNS-C11000 or UNS-C21000
Tube: ERW Hydraulic Steel Tube
Inlet and Barrel End: QM Brass or Brass UNS-C31400 or Brass UNS-C31600
Support (Internal): Brass UNS-C36000 or Brass UNS-C31400 or Brass UNS-C31600
Barrel: Steel Pipe UNS-G10260, Electrodeposited Epoxy Base finish
Sleeve (for Adjustable Standard style only): Brass UNS-C26000 or UNS-C26800
