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This industrial fire sprinkler head is made of premium full brass and stainless steel raw material, available in three mainstream installation styles: pendant, upright and sidewall. Equipped with red thermal glass bulb and K80 standard flow coefficient, it supports multiple temperature grade options to match different ambient fire risk environments. The fire sprinkler adopts standard NPT inch thread connection, passes strict 3.2MPa full sealing pressure inspection one by one, and provides fast response & standard response activation modes. Multiple surface finishes including chrome plating, raw copper and polyester coating are optional for indoor, commercial, warehouse, factory and building fire suppression systems. Reliable pressure resistance, stable water spraying performance and long service life make it a core component of automatic fire sprinkler systems globally.
Complete Product Parameters
Product Name
Automatic Fire Sprinkler Head / Fire Sprinkler Nozzle
Main Body Material
Full Brass, Stainless Steel
Installation Types
Pendant (down), Upright (up), Sidewall (horizontal)
Premium Full Brass & Stainless Steel Body High density brass + stainless steel structure, anti-rust, anti-corrosion, high pressure resistant, no deformation under long-term water pipeline pressure, stable structure for decades of standby use.
Three Universal Installation Styles In Stock Pendant, upright, sidewall three types cover all mainstream pipeline layout designs, flexible matching for ceiling, beam, wall mounting construction requirements.
Standard K80 Flow Coefficient & Precise Water Distribution K=80 industry standard flow rate ensures uniform, wide-range water spray coverage, fast cooling and smothering for initial class A solid fires.
Red Thermal Glass Bulb with Multi-Temperature Options Red bulb with 5 temperature grades from 57°C up to 141°C, suitable for normal indoor, high-temperature workshop, boiler room, attic and high-heat industrial zones.
Standard NPT Imperial Thread Connection 1/2" & 3/4" NPT inch thread fits global standard fire pipeline fittings, tight thread fit, easy installation without leakage risk.
5-Screw Secure Glass Bulb Fixation Five compression screws lock the glass bulb firmly, avoid loose shaking during pipeline water hammer pressure, guarantee accurate temperature trigger performance.
Three Protective Surface Coatings Chrome plated (bright anti-rust decorative), raw copper (high heat conduction), polyester coating (anti-corrosion for humid/chemical environments) to meet different site environment demands.
100% Full 3.2MPa Sealing Pressure Inspection Every single sprinkler undergoes strict 3.2MPa hydraulic sealing test before shipment, zero leakage rate, qualified for international fire engineering acceptance standards.
Dual Response Mode Selection Support fast response for sensitive residential/hotel spaces and standard response for heavy industrial & warehouse high fire load areas, targeted fire protection activation speed.
Product Details
This automatic fire sprinkler head is manufactured with precision casting full brass and stainless steel as base material, with high mechanical strength and excellent oxidation resistance compared to cheap alloy sprinklers. The internal water channel is precision polished to reduce flow resistance and guarantee stable K80 flow output consistently.
The temperature sensing core adopts red thermal expansion glass bulb, fixed tightly by 5 compression screws to eliminate loosening risks caused by pipeline vibration or pressure fluctuation. Once ambient temperature rises to the rated threshold, the glass bulb bursts instantly to open the sealing valve and release pressurized water for fire suppression. We supply five common temperature ratings to adapt from ordinary room temperature spaces to high-temperature production workshops.
Thread interface strictly follows NPT imperial standard in 1/2" and 3/4" sizes, widely compatible with global fire pipe fittings, elbows and tees. Three installation configurations: pendant sprays downward for flat ceiling spaces, upright sprays upward for exposed overhead pipes, sidewall horizontal spray for wall edge and beam side installation.
Three surface finish treatments are optional: chrome plating delivers smooth bright appearance and extra rust protection; natural copper maintains fast heat transfer for rapid bulb activation; polyester coated finish provides strong acid, alkali and moisture resistance for chemical factories, underground parking and coastal humid salt air environments.
Each finished sprinkler is individually pressure tested at 3.2MPa sealing pressure, unqualified products eliminated completely. Two activation speeds (fast response / standard response) allow engineers to design fire systems per local building code and fire hazard classification, ideal for large-scale fire engineering bidding and wholesale supply.
FAQ
Q1: What materials is this fire sprinkler made of?
A1: Main body is full brass and stainless steel, sturdy, pressure resistant and anti-corrosion for long-term standby.
Q2: What installation types are available?
A2: Three types: pendant, upright, sidewall to fit different pipeline and ceiling layouts.
Q3: What thread size and standard do you offer?
A3: Nominal diameter 1/2" and 3/4", connection thread is standard NPT imperial thread.
Q4: What color is the thermal glass bulb, and what temperature grades are available?
A4: Glass bulb is red; available temperatures: 57°C(135°F),68°C(155°F),79°C(175°F),93°C(200°F),141°C(286°F).
Q5: What is the flow coefficient of this sprinkler?
A5: Standard flow rate K=80, widely used for conventional class A fire suppression systems.
Q6: How is the glass bulb fixed?
A6: Secured by 5 compression screws, stable and anti-loose against pipeline vibration and water hammer.
Q7: What surface finishes can I choose?
A7: Chrome plated, raw copper, polyester coating three options for different environmental protection needs.
Q8: What pressure test does each sprinkler pass?
A8: Every unit is 100% inspected under 3.2MPa sealing pressure to ensure no water leakage.
Q9: Do you have different response speeds?
A9: Yes, both fast response and standard response models are available for different fire risk sites.
Q10: Where are these sprinklers commonly installed?
A10: Suitable for factories, warehouses, hotels, offices, malls, residential buildings, parking lots and most commercial indoor fire protection projects.
First of all, thank you for your interest in our company. Here is a brief introduction of our company:
1. Company Background:
Founded in 2014, the company is headquartered in Jinan, Shandong Province, China. Registered capital of 10 million yuan, currently has more than 200 employees, three indepe... First of all, thank you for your interest in our company. Here is a brief introduction of our company:
1. Company Background:
Founded in 2014, the company is headquartered in Jinan, Shandong Province, China. Registered capital of 10 million yuan, currently has more than 200 employees, three indepe...
