Products Description

Overview
Quick response extended coverage sprinkler is a type of automatic fire sprinkler designed to cover a larger area per head than standard sprinklers.
Quick Response (QR):
Activates faster than standard sprinklers because of a smaller thermal element or faster-response glass bulb.
Reduces the time between fire ignition and water discharge, helping control fires early.
Extended Coverage (EC):
Covers a larger area per sprinkler head (often up to 196–225 sq. ft., depending on manufacturer and system design).
Fewer sprinklers needed in a space, lowering installation costs.
Spray Pattern:
Typically uses a deflector that spreads water broadly, ensuring even coverage over the designated area.
Applications:
Warehouses, storage facilities, large open offices, or any space where fewer heads can cover more area but quick response is critical.
Features
Product Name: Quick response extended coverage sprinkler
Material: Brass
K Factor: K8.0
Installation: Pendent
Response: Quick
Products Specification
Quick response extended coverage sprinkler with different size and standard for option:
| Model | Connection | K factor | Tempurature | Response Type | Glass Bulb |
|
EC-ZSTX 115-57°C Q3 J |
3/4" (DN20) BSP |
K8.0@US (115@Metric) |
57℃ |
Quick |
3mm, Orange |
|
EC-ZSTX 115-68°C Q3 J |
3/4" (DN20) BSP |
K8.0@US (115@Metric) |
68℃ | Quick | 3mm, Red |
|
EC-ZSTX 115-79°C Q3 J |
3/4" (DN20) BSP |
K8.0@US (115@Metric) |
79℃ | Quick | 3mm, Yellow |
|
EC-ZSTX 115-93°C Q3 J |
3/4" (DN20) BSP |
K8.0@US (115@Metric) |
93℃ | Quick | 3mm, Green |
|
EC-ZSTX 115-141°C Q3 J |
3/4" (DN20) BSP |
K8.0@US (115@Metric) |
141℃ | Quick | 3mm, Blue |
FAQ
Q: What are typical applications?
Warehouses and distribution centers
Large retail stores
Manufacturing facilities
High-ceiling storage areas
Light hazard occupancies with open layouts
Q: How does "quick response" work?
Quick response sprinklers have smaller thermal elements (e.g., glass bulbs or fusible links). This allows them to detect heat faster, reducing the time between fire ignition and sprinkler activation. Faster activation limits fire growth and reduces property damage.
Q: How is "extended coverage" achieved?
Extended coverage sprinklers have specially designed deflectors and spray patterns that allow a single head to cover a larger area than standard sprinklers. This reduces the total number of heads needed, lowering installation costs and simplifying piping layouts.
Q: Are QREC sprinklers compatible with standard fire codes?
Yes. They are UL-listed and FM-approved, and compliant with NFPA 13 requirements for quick response and extended coverage sprinklers. Installation must follow the manufacturer's specifications for spacing, ceiling height, and water density.
Q: What are installation considerations?
Ceiling Height: Check the maximum allowable height for extended coverage.
Spacing: Adhere to NFPA 13 spacing limits for extended coverage.
Obstructions: Avoid blocking spray patterns with beams, lighting, or HVAC equipment.
Water Supply: Ensure adequate water pressure and flow to meet density requirements.
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