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.
Factory references are shown for order matching. Thread form, product marking and documentation are confirmed against the destination market and approved sample.
Product presentation
Three installation styles, clearly shown.
Use the arrows or thumbnails to review the pendent, upright and horizontal sidewall configurations, the confirmed temperature-color options and a real packing photo.

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.
| Configuration | Nominal size | K-factor | Temperature options | Factory reference |
|---|---|---|---|---|
| Pendent, Quick ResponseDeflector facing downward | DN15 / ½ in | K5.6 US / K80 metric | 57, 68, 79, 93, 141°C | K-ZSTX80 series |
| Upright, Quick ResponseDeflector facing upward | DN15 / ½ in | K5.6 US / K80 metric | 57, 68, 79, 93, 141°C | K-ZSTZ80 / K-ZSTU80 series |
| Horizontal Sidewall, Quick ResponseSidewall installation | DN15 / ½ in | K5.6 US / K80 metric | 57, 68, 79, 93, 141°C | K-ZSTBS80 series |
| Pendent, Quick ResponseDeflector facing downward | DN20 / ¾ in | K8.0 US / K115 metric | 57, 68, 79, 93, 141°C | K-ZSTX115 series |
| Upright, Quick ResponseDeflector facing upward | DN20 / ¾ in | K8.0 US / K115 metric | 57, 68, 79, 93, 141°C | K-ZSTZ115 / K-ZSTU115 series |
| Horizontal Sidewall, Quick ResponseSidewall installation | DN20 / ¾ in | K8.0 US / K115 metric | 57, 68, 79, 93, 141°C | K-ZSTBS115 series |
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.
Send us your sprinkler requirement.
Include country, orientation, temperature, thread form, quantity and OEM request.