---
product_id: 496433096
title: "UL Listed 1/2 NPT Fire Sprinkler Head 155°F (68°C) K=5.6 Concealed Pendent Spray K80 Standard Response for Automatic Fire sprinkler System Dia 5mm Bulb Concealed Head with White Cover Plate"
brand: "tuna"
price: "NT$3449"
currency: TWD
in_stock: true
reviews_count: 3
category: "Tuna"
url: https://www.desertcart.tw/products/496433096-ul-listed-1-2-npt-fire-sprinkler-head-155-f
store_origin: TW
region: Taiwan
---

# K=5.6 discharge coefficient 155°F activation temp 1/2" NPT thread size UL Listed 1/2 NPT Fire Sprinkler Head 155°F (68°C) K=5.6 Concealed Pendent Spray K80 Standard Response for Automatic Fire sprinkler System Dia 5mm Bulb Concealed Head with White Cover Plate

**Brand:** tuna
**Price:** NT$3449
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of fire risks with invisible protection!

## Quick Answers

- **What is this?** UL Listed 1/2 NPT Fire Sprinkler Head 155°F (68°C) K=5.6 Concealed Pendent Spray K80 Standard Response for Automatic Fire sprinkler System Dia 5mm Bulb Concealed Head with White Cover Plate by tuna
- **How much does it cost?** NT$3449 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/496433096-ul-listed-1-2-npt-fire-sprinkler-head-155-f)

## Best For

- tuna enthusiasts

## Why This Product

- Trusted tuna brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High Pressure Tested:** Factory hydrostatic tested at 500psi guarantees dependable performance
- • **Optimized Water Flow:** K=5.6 discharge coefficient ensures efficient spray coverage
- • **Robust Build Quality:** Durable bronze frame with brass/copper components for long-lasting safety
- • **Sleek Concealed Design:** White cover plate blends seamlessly with modern interiors
- • **Precision Temperature Activation:** Triggers reliably at 155°F (68°C) for timely fire response

## Overview

This UL Listed 1/2" NPT concealed pendent fire sprinkler head activates at 155°F, delivering optimized water flow with a K=5.6 discharge coefficient. Built with premium bronze and brass materials, it withstands pressures up to 175psi and is factory tested at 500psi for reliability. Its sleek white cover plate ensures discreet integration into any space, making it an essential, professional-grade safety upgrade for modern homes and offices.

## Description

Technical Details: Temperature Rating: 155°F (68°C) Discharge Coefficient: K=5.6(U.S) /80(Metric) Nominal Orifice Size:1/2"(15mm) Maximum Working Pressure:175psi(12bar) Min. Operating Pressure: 7psi (0.48bar) Factory Hydrostatic Test: 100%@ 500psi (34.5bar) Physical Characteristics Frame: Bronze Button: Brass/Copper Sealing Assembly: Beryllium Nickel w/Teflon Bulb: Glass Compression Screw: Bronze Deflector: Copper

Review: Used this head to illustrate the operating principles of residential fire sprinklers during my college presentation. Definitely fit the bill. 1/2 NPT
Review: Worth every penny. Ounce of prevention worth its weight in gold. Residential installed in custom home.

## Features

- UL Listed EX6430.1/2" NPT thread
- Temperature Rating: 155°F (68°C);Discharge Coefficient: K=5.6(U.S) /80(Metric);Nominal Orifice Size:1/2"(15mm)
- Maximum Working Pressure:175psi(12bar); Min. Operating Pressure: 7psi (0.48bar); Factory Hydrostatic Test: 100%@ 500psi (34.5bar)
- Frame: Bronze; Button: Brass/Copper; Sealing Assembly: Beryllium Nickel w/Teflon; Bulb: Glass Compression; Screw: Bronze; Deflector: Copper
- Fire sprinkler head guard and sprinkler head wrench are available, please see our other Asins

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076NXWWXZ |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,276,943 in DIY & Tools ( See Top 100 in DIY & Tools ) 749 in Trim & Repair Kits |
| Colour | ['White'] |
| Customer Reviews | 4.4 4.4 out of 5 stars (37) |
| Date First Available | 21 Oct. 2017 |
| Flow rate | 10.82 Litres Per Minute |
| Item Weight | 68 g |
| Item model number | NX007 |
| Manufacturer | Tuna |
| Material | Brass |
| Part Number | NX007 |
| Product Dimensions | 8.36 x 8.36 x 6.2 cm; 68.04 g |
| Size | 1/2"NPT |
| Style | Fixed Spray |

## Product Details

- **Brand:** Tuna
- **Colour:** ['White']
- **Item dimensions L x W x H:** 8.4 x 8.4 x 6.2 centimetres
- **Material:** Brass
- **Style:** Fixed Spray

## Images

![UL Listed 1/2 NPT Fire Sprinkler Head 155°F (68°C) K=5.6 Concealed Pendent Spray K80 Standard Response for Automatic Fire sprinkler System Dia 5mm Bulb Concealed Head with White Cover Plate - Image 1](https://m.media-amazon.com/images/I/61FqK9zKUcL.jpg)

## Questions & Answers

**Q: Does this work with a dry or wet system**
A: This is a wet system sprinkler head as supplied. If you have a dry system you need to pull the red 'breaker' out

**Q: Can this be wall mounted?**
A: The product could mounted to a wall. But I would ask your inspector if they want a special sprinkler head for a wall application.

**Q: what is the coverage rating for this sprinkler head?**
A: Do not know I have spaced them at 8’ apart on a twelve foot curling on a pass through system. Not stand alone

**Q: What are the mounting brackets for ceiling if I’m using pex**
A: I used the same fitting I use for A shower then A rigid nipple to the sprinkler.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by N***I on 16 December 2019*

Used this head to illustrate the operating principles of residential fire sprinklers during my college presentation. Definitely fit the bill. 1/2 NPT

### ⭐⭐⭐⭐ Review
*by R***R on 4 February 2019*

Worth every penny. Ounce of prevention worth its weight in gold. Residential installed in custom home.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 27 March 2019*

very well made but did not fit my sprinkler system

## Frequently Bought Together

- TUNA UL & CUL Listed 1/2"NPT Fire Sprinkler Head 155°F (68°C) Concealed Pendent Spray K80 Standard Response for Automatic Fire sprinkler System Concealed Head with White Cover Plate
- TunaMax Universal Fire Sprinker Head wrench for 1/2" Semi-recessed or Concealed or Exposed Sprinkler Head
- Happy Tree Universal Fire Sprinkler Head Wrench Fitting 1/2" Semi- Recessed or Exposed or Concealed Fire Sprinkler Heads

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tw/products/496433096-ul-listed-1-2-npt-fire-sprinkler-head-155-f](https://www.desertcart.tw/products/496433096-ul-listed-1-2-npt-fire-sprinkler-head-155-f)

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-23*