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Typical pendent sprinkler
Typical product · brand and markings may differ

Sprinklers

Pendent sprinkler

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K-factorK-factorThe sprinkler's discharge coefficient: flow = K × √pressure. A higher K gives more water at the same pressure. K5.6 (K80 metric) is the usual head for light and ordinary hazard.
TemperatureTemperature ratingThe temperature at which the glass bulb or link breaks and the sprinkler opens. 68 °C (red bulb) suits normal ceilings; hot spaces such as kitchens and plant rooms need a higher rating.
ResponseResponseHow fast the heat-sensitive element reacts. Quick response heads open sooner and are usual in light hazard areas such as hotels, offices and hospitals; standard response suits many ordinary hazard and storage areas.
Finish
ThreadThreadNPT is the American taper thread; BSPT (ISO 7-1) is the British taper thread. Match the thread to the fittings used on the project.
Listing requiredListing requiredWhether the item must carry a third-party listing or approval: UL (Underwriters Laboratories), FM (FM Approvals) or EN certification, often by LPCB. Listings belong to the manufacturer of each product; we quote only products that carry the one you ask for.

Line: Pendent sprinkler

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Pendent sprinkler: products we supply

ProductK-factorResponseThreadTemperature
Pendent sprinklerK5.6 (K81 metric) · Standard · ½" NPT (15 mm) · 57–182 °CK5.6Standard½" NPT57–182 °C
Recessed pendent sprinklerK5.6 (K81 metric) · Standard · ½" NPT (15 mm) · 57–182 °CK5.6Standard½" NPT57–182 °C
Pendent sprinklerK5.6 (K81 metric) · Quick · ½" NPT (15 mm) · 57–141 °CK5.6Quick½" NPT57–141 °C
Recessed pendent sprinklerK5.6 (K81 metric) · Quick · ½" NPT (15 mm) · 57–93 °CK5.6Quick½" NPT57–93 °C
Pendent sprinklerK8.0 (K115 metric) · Standard · ¾" NPT (20 mm) · 57–182 °CK8.0Standard¾" NPT57–182 °C
Recessed pendent sprinklerK8.0 (K115 metric) · Standard · ¾" NPT (20 mm) · 57–141 °CK8.0Standard¾" NPT57–141 °C
Recessed pendent sprinklerK8.0 (K115 metric) · Quick · ¾" NPT (20 mm) · 57–93 °CK8.0Quick¾" NPT57–93 °C
European pendent sprinklerK5.6 (K81 metric) · Standard · ½" NPT (15 mm) · Europe onlyK5.6Standard½" NPT57–182 °C
European pendent sprinklerK5.6 (K81 metric) · Quick · ½" NPT (15 mm) · Europe onlyK5.6Quick½" NPT57–182 °C
European pendent sprinklerK8.0 (K115 metric) · Standard · ¾" NPT (20 mm) · Europe onlyK8.0Standard¾" NPT57–182 °C
European pendent sprinklerK8.0 (K115 metric) · Quick · ¾" NPT (20 mm) · Europe onlyK8.0Quick¾" NPT57–182 °C
Pendent sprinklerK2.8 (K40 metric) · Standard · ½" NPT (15 mm) · Standard commercial, small orificeK2.8Standard½" NPT57–182 °C
Recessed pendent sprinklerK2.8 (K40 metric) · Standard · ½" NPT (15 mm) · Standard commercial, small orificeK2.8Standard½" NPT57–182 °C
Pendent sprinklerK2.8 (K40 metric) · Quick · ½" NPT (15 mm) · Standard commercial, small orificeK2.8Quick½" NPT57–141 °C
Recessed pendent sprinklerK2.8 (K40 metric) · Quick · ½" NPT (15 mm) · Standard commercial, small orificeK2.8Quick½" NPT57–93 °C
Pendent sprinklerK4.2 (K61 metric) · Standard · 3/8" NPT (10 mm) · 57–141 °CK4.2Standard3/8" NPT57–141 °C
Pendent sprinklerK4.2 (K61 metric) · Quick · 3/8" NPT (10 mm) · 57–141 °CK4.2Quick3/8" NPT57–141 °C
Low-pressure storage pendent sprinklerK25.2 (K368 metric) · Standard · 1" NPT (25 mm) · Storage, LP-46 low-pressureK25.2Standard1" NPT72–141 °C
Pendent sprinklerK11.2 (K161 metric) · Standard · ¾" NPT (20 mm) · Ordinary hazard, storageK11.2Standard¾" NPT57–141 °C
Pendent sprinklerK11.2 (K161 metric) · Quick · ¾" NPT (20 mm) · Ordinary hazard, storageK11.2Quick¾" NPT57–141 °C
Intermediate-level pendent sprinklerK5.6 (K81 metric) · Standard · ½" NPT (15 mm) · In-rack storage, ordinary hazardK5.6Standard½" NPT57–141 °C
Intermediate-level pendent sprinklerK5.6 (K81 metric) · Quick · ½" NPT (15 mm) · In-rack storage, ordinary hazardK5.6Quick½" NPT57–141 °C
Intermediate-level pendent sprinklerK8.0 (K115 metric) · Standard · ¾" NPT (20 mm) · In-rack storage, ordinary hazardK8.0Standard¾" NPT57–141 °C
Intermediate-level pendent sprinklerK8.0 (K115 metric) · Quick · ¾" NPT (20 mm) · In-rack storage, ordinary hazardK8.0Quick¾" NPT57–141 °C
Extended coverage pendent sprinklerK11.2 (K161 metric) · Standard · ¾" NPT (20 mm) · Extended coverage, light hazardK11.2Standard¾" NPT57–93 °C
Extended coverage recessed pendent sprinklerK11.2 (K161 metric) · Standard · ¾" NPT (20 mm) · Extended coverage, light hazardK11.2Standard¾" NPT57–93 °C
Extended coverage pendent sprinklerK11.2 (K161 metric) · Quick · ¾" NPT (20 mm) · Extended coverage, light hazardK11.2Quick¾" NPT57–93 °C
Extended coverage recessed pendent sprinklerK11.2 (K161 metric) · Quick · ¾" NPT (20 mm) · Extended coverage, light hazardK11.2Quick¾" NPT57–93 °C
Extended coverage pendent sprinklerK14.0 (K202 metric) · Standard · ¾" NPT (20 mm) · Extended coverage, light hazardK14.0Standard¾" NPT57–93 °C
Extended coverage recessed pendent sprinklerK14.0 (K202 metric) · Standard · ¾" NPT (20 mm) · Extended coverage, light hazardK14.0Standard¾" NPT57–93 °C
Extended coverage pendent sprinklerK14.0 (K202 metric) · Quick · ¾" NPT (20 mm) · Extended coverage, light hazardK14.0Quick¾" NPT57–93 °C
Extended coverage recessed pendent sprinklerK14.0 (K202 metric) · Quick · ¾" NPT (20 mm) · Extended coverage, light hazardK14.0Quick¾" NPT57–93 °C
Extended coverage pendent sprinklerK14.0 (K202 metric) · Standard · ¾" NPT (20 mm) · Extended coverage, ordinary hazardK14.0Standard¾" NPT68–141 °C
Extended coverage recessed pendent sprinklerK14.0 (K202 metric) · Standard · ¾" NPT (20 mm) · Extended coverage, ordinary hazardK14.0Standard¾" NPT68–141 °C
Residential pendent sprinklerK4.9 (K71 metric) · Quick · ½" NPT (15 mm) · ResidentialK4.9Quick½" NPT68–79 °C
Residential recessed pendent sprinklerK4.9 (K71 metric) · Quick · ½" NPT (15 mm) · ResidentialK4.9Quick½" NPT68–79 °C
Residential pendent sprinklerK4.9 (K71 metric) · Quick · ½" NPT (15 mm) · ResidentialK4.9Quick½" NPT68–79 °C
Residential recessed pendent sprinklerK4.9 (K71 metric) · Quick · ½" NPT (15 mm) · ResidentialK4.9Quick½" NPT68–79 °C
Residential pendent sprinklerK4.9 (K71 metric) · Quick · ½" NPT (15 mm) · ResidentialK4.9Quick½" NPT68–79 °C
Residential recessed pendent sprinklerK4.9 (K71 metric) · Quick · ½" NPT (15 mm) · ½" (13 mm)K4.9Quick½" NPT68–79 °C
Residential recessed pendent sprinklerK4.9 (K71 metric) · Quick · ½" NPT (15 mm) · ¼" (6 mm)K4.9Quick½" NPT68–79 °C
Residential pendent sprinklerK6.9 (K99 metric) · Quick · ¾" NPT (20 mm) · ResidentialK6.9Quick¾" NPT68–79 °C
Residential recessed pendent sprinklerK6.9 (K99 metric) · Quick · ¾" NPT (20 mm) · ResidentialK6.9Quick¾" NPT68–79 °C

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