---
product_id: 312669344
title: "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"
brand: "tuna"
price: "$101.09"
currency: USD
in_stock: true
reviews_count: 3
category: "Tuna"
url: https://www.desertcart.us/products/312669344-tuna-ul-and-cul-listed-1-2npt-fire-sprinkler-head
store_origin: US
region: United States of America
---

# K=5.6/80 discharge coefficient 155°F (68°C) temp rating 1/2" NPT tapered thread 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

**Brand:** tuna
**Price:** $101.09
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay protected in style — fire safety that’s as smart as you are!

## Quick Answers

- **What is this?** 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 by tuna
- **How much does it cost?** $101.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/312669344-tuna-ul-and-cul-listed-1-2npt-fire-sprinkler-head)

## 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

- • **Standardized Threading:** 1/2" NPT tapered thread guarantees secure, leak-free installation
- • **Reliable Material Build:** Bronze and copper frame ensures long-lasting corrosion resistance
- • **Robust Pressure Handling:** Operates safely up to 175psi with factory-tested durability
- • **Seamless Concealed Design:** Sleek white cover plate blends with modern interiors
- • **Precision Thermal Activation:** Glass bulb shatters at 155°F for rapid fire response

## Overview

The TUNA UL & CUL Listed 1/2" NPT Fire Sprinkler Head features a 155°F temperature rating with a K=5.6/80 discharge coefficient, designed for automatic fire suppression. Its concealed pendent spray with a white cover plate offers a sleek, modern look while ensuring rapid activation through a thermal-sensitive glass bulb. Built with durable bronze and copper materials and tested to withstand pressures up to 175psi, this sprinkler head guarantees reliable, long-term fire protection for residential and commercial spaces.

## Description

During a fire conditions, the thermal-sensitive liquid in the glass bulb expands, causing the bulb to shatter, releasing the button and spring seal assembly. Water flowing through the sprinkler orifice strikes the sprinkler deflector, forming a uniform spray pattern to extinguish or control the fire.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) NPT: National Pipe Tapered is common in plumbing and some industrial uses. Sometimes referred to as pipe thread because PVC pipe and schedule 40 pipe are typically threaded in NPT. As its name implies this is a tapered thread so that the outside diameter of the male (ODM) gets smaller towards the end of the fitting and the inside diameter of the female narrows with depth. As the two fittings are threaded together the opposite tapers force thread friction and makes the seal without the use of a gasket.

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 & CUL listed EX6430. 1/2 " NPT (National National Pipe Thread) American thread fire sprinkler heads
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076NXWWXZ |
| Batteries Included? | No |
| Brand | Tuna |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (38) |
| Date First Available | 1 January 2024 |
| Is Discontinued By Manufacturer | No |
| Item model number | NX007 |
| Manufacturer | Tuna |
| Material Type | Brass, Copper |
| Number of Items | 1 |
| 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 centimeters
- **Material:** Brass, Copper
- **Style:** Fixed Spray

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61FqK9zKUcL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/41u2UMPi6zL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/81DP1HklcTL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/819vnMoi-dL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/81+6dsSYXsL.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

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-02*