Standard Response Upright and Pendent Sprinkler Heads (93°C K80)(V2703 ZSTZ80-93℃ )(V2707 ZSTX80-93℃)

Standard response upright and downward-facing sprinklers (93℃ K80), with their high-temperature resistance, stable flow control, and flexible installation methods, have become the preferred choice for fire protection in high-temperature environments. During design and installation, strict compliance with code requirements is necessary, and the appropriate sprinkler type should be selected based on the characteristics of the location to ensure efficient and reliable performance in the event of a fire.

● Body：Brass or Stainless Steel
● Glass Bulb：Borosilicate Glass
● Nominal Operating Temperature：93℃
● Flow Coefficient (K-value)：K80
● Working Pressure Range：0.05~1.2MPa
● Interface Specification：R3/8″or NPT1/8″
● OEM Service：Accepted
● Delivery Terms：FOB, CFR, CIF, EXW
● Payment Mode：T/T, L/C, PayPal, Western Union

Product category:

UL/FM Fire Sprinkler

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Product Details

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Product Formation

Standard response upward and downward spray sprinklers (93°C, K80) are core terminal components in automatic sprinkler systems, primarily used for fire detection and initiating water spray to suppress fires. Their "standard response" characteristic, "93°C" nominal operating temperature, "K80" flow coefficient, and differentiated design of "upward/downward spray" installation methods collectively define the product’s functional positioning and application scenarios. By virtue of precise parameter design (including RTI [Response Time Index], K-value, and operating temperature) and differentiated structures (such as sprinkler disc orientation and installation methods), these sprinklers achieve fire protection in both conventional and three-dimensional spaces, serving as critical components in automatic sprinkler systems for "precise detection and efficient suppression."

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Other Classifed Products：

Fire Hose Categories, Fire Sprinkler System, Fire Protection Valve , Fire Hose Reel&Cabinet , Fire Foam Equipment，Fire Nozzle and Fire Monitor , Fire Hydrant , UL/FM Fire Fighting Equipment , Brass Valve Categories , Fire Extinguisher Series .

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Product Features

Standard response upward and downward spray sprinklers (93°C, K80), as terminal detection and suppression components of automatic sprinkler systems, have the following specific characteristics:

Moderate response speed: Suitable for conventional building spaces (e.g., offices, shopping malls, hotels, hospital corridors), they activate promptly during early fire stages (the transition from smoldering to flaming combustion), balancing "false alarm prevention" and "timely fire suppression."
Precise temperature matching: With minimal operating temperature deviation, they ensure stable triggering within the target temperature range—enhancing system reliability and preventing false activation in high-temperature environments.
Corrosion resistance: Made of copper or stainless steel, they maintain long-term leak-free and false-alarm-free performance even in humid or large-temperature-difference conditions.
Wide scene adaptability: When used in combination, they achieve "full-space protection," covering diverse areas.
Strong system compatibility: Compatible with mainstream sprinkler systems, they require minimal modification, reducing construction and maintenance costs.

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Product Parameter

Parameter Category	Specific Indicator	Description
Response Type	Standard Response	Response Time Index (RTI): 80~350 (m·s)⁰·⁵, balancing sensitivity and stability, suitable for conventional building spaces.
Body	Brass or Stainless Steel	Surface roughness Ra≤ 1.6μm; Thickness of nickel/chromium plating ≥ 5μm; No corrosion after salt spray test ≥ 48h.
Glass Bulb	Borosilicate Glass (Withstand Temperature ≥ 500℃), Internal Liquid Formula Passed Aging Test (Volume Change ≤ ±2% at 100℃ for 168h)	Action Temperature Repeatability: Deviation ≤ ±1℃ for the same batch; No rupture after vibration test (10~500Hz, 10g, 2h).
Sealing Parts	EPDM Rubber (Shore Hardness 70±5A)	Permanent Compression Set ≤ 20% (100℃×24h); No cracking or swelling after water aging test (70℃×96h).
Nominal Operating Temperature	93℃	Corresponds to green glass bulb temperature-sensing element; Action temperature deviation: ±3℃ (starts within 5min in hot water at 93℃±2℃).
Flow Coefficient (K-value)	K80	-
Working Pressure Range	0.05~1.2MPa	Rated working pressure: 0.1MPa (system design reference pressure).
Interface Specification	R3/8″ (British Pipe Thread) or NPT1/8″ (American Taper Pipe Thread)	Matches the water distribution branch pipe of the automatic sprinkler system; thread accuracy complies with GB/T 7307 or ASME B1.20.1 standards.
Notes	Specific details need to be confirmed with the supplier.

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FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

Q: How can l get my order?
A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A： With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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With more than 15 years of experience serving clients, we have developed extensive expertise and in-depth industry knowledge, enabling us to deliver reliable and effective solutions tailored to your requirements.
We provide professional technical support and customized service offerings. Our committed technical team is available to assist you with product consultation, installation guidance, and comprehensive after-sales support whenever necessary.
At Sheng Feng Fire, our professionals are dedicated to helping you select the most suitable products based on your specific needs.
Please do not hesitate to contact us for further information！