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Quick Response · Standard Spray

Glass Bulb Fire Sprinkler

A quick-response sprinkler family for wet-pipe automatic sprinkler systems, available in pendent, upright and horizontal sidewall configurations. Select the size, temperature rating, thread and marking required for your market.

K5.6 / K8.0 USDN15 / ½ in · DN20 / ¾ in3 mm Glass Bulb3 Installation StylesOEM / ODM

Factory references are shown for order matching. Thread form, product marking and documentation are confirmed against the destination market and approved sample.

Technical overview

Buyer-ready specifications

International names and inch equivalents are presented first. Domestic factory references remain available only for production and order matching.

Product specifications

Product type
Quick Response Standard Spray Sprinkler
Installation
Pendent or Upright
Nominal size
DN15 / ½ in
K-factor
K5.6 US / K80 metric (nominal)
Thermal element
3 mm glass bulb
Temperature
57°C / 135°F, 68°C / 155°F, 79°C / 175°F, 93°C / 200°F, 141°C / 286°F
System application
Wet-pipe automatic sprinkler systems
Frame material
Copper
Surface finish
Chrome-plated or natural copper finish
Thread form
Manufactured to the confirmed customer drawing or approved sample
Max. working pressure
1.2 MPa / 12 bar / approx. 175 psi
Unit weight
Approx. 45–80 g, depending on size and configuration
Standard packing
100 pcs per export carton
Compliance
Documentation reviewed according to the destination market; no foreign approval is implied

Available configurations

Models you can order

The table describes the buyer-facing choices. Factory references are retained in the last column so samples, production and repeat orders can be matched accurately.

ConfigurationNominal sizeK-factorTemperature optionsFactory reference
Pendent, Quick ResponseDeflector facing downwardDN15 / ½ inK5.6 US / K80 metric57, 68, 79, 93, 141°CK-ZSTX80 series
Upright, Quick ResponseDeflector facing upwardDN15 / ½ inK5.6 US / K80 metric57, 68, 79, 93, 141°CK-ZSTZ80 / K-ZSTU80 series
Horizontal Sidewall, Quick ResponseSidewall installationDN15 / ½ inK5.6 US / K80 metric57, 68, 79, 93, 141°CK-ZSTBS80 series
Pendent, Quick ResponseDeflector facing downwardDN20 / ¾ inK8.0 US / K115 metric57, 68, 79, 93, 141°CK-ZSTX115 series
Upright, Quick ResponseDeflector facing upwardDN20 / ¾ inK8.0 US / K115 metric57, 68, 79, 93, 141°CK-ZSTZ115 / K-ZSTU115 series
Horizontal Sidewall, Quick ResponseSidewall installationDN20 / ¾ inK8.0 US / K115 metric57, 68, 79, 93, 141°CK-ZSTBS115 series

Color markings shown in the gallery are a selection reference. Confirm the exact response type, temperature, marking and document package before placing an order.

OEM / ODM support

Configured for your brand and market.

We can review product marking, surface finish, thread form and export packaging after the required model and destination are confirmed.

Product markingBrand and model marking reviewed against available marking space.
Surface finishChrome-plated and natural copper finish options.
ConnectionThread form produced to the confirmed drawing or sample.
Export packagingPrivate-label cartons, labels and shipping marks available for review.

Send us your sprinkler requirement.

Include country, orientation, temperature, thread form, quantity and OEM request.