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Types of fire sprinkler head , pendent fire sprinkler head , upright fire sprinkler head
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| Model No. : | ZSTX/ZSTB/ZSTZ |
|---|---|
| Brand Name : | JY |
Quanzhou Jinyuan Fire-Fighting Plumbing Co., Ltd.
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Product description
fire sprinkler heads Material:Brass,chrome finished Operating temperature : 57/68/79/93/141 degree Diameter: 1/2" & 3/4" Product Description Each closed-head sprinkler is held closed by either a heat-sensitive glass bulb (see below) or a two-part metal link held together withfusible alloy such as Wood's metal and other alloys with similar compositions.The glass bulb or link applies pressure to a pipe cap which acts as a plug which prevents water from flowing until the ambient temperature around the sprinkler reaches the design activation temperature of the individual sprinkler. Because each sprinkler activates independently when the predetermined heat level is reached, the number of sprinklers that operate is limited to only those near the fire, thereby maximizing the available water pressure over the point of fire origin. The bulb breaks as a result of the thermal expansion of the liquid inside the bulb. The time it takes before a bulb breaks is dependent on the temperature. Below the design temperature, it does not break, and above the design temperature, it takes less time for higher temperatures. The response time is expressed as a response time index (RTI), which typically has values between 35 and 250 m½s½, where a low value indicates a fast response. Under standard testing procedures (135 °C air at a velocity of 2.5 m/s), a 68 °C sprinkler bulb will break within 7 to 33 seconds, depending on the RTI.[13] The RTI can also be specified in imperial units, where 1 ft½s½ is equivalent to 0.55 m½s½. The sensitivity of a sprinkler can be negatively affected if the thermal element has been painted.
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2. 2013 Year New Fire Sprinkler |
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3.Brass Fire Sprinkler |
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| #Avaliable temperature#    Model: ZSTX15/ZSTX20 Style: Pendent fire sprinkler Size: R1/2” 3/4” and NPT 1/2” 3/4” Material: Brass Plating: Chrome, Natural brass, White painting, Blue painting Working pressure : 12bar Operating temperature :57°C/68°C/79°C/93°C/141°C Model: ZSTZ15/ZSTZ20 Style:Upright fire sprinkler Size: R1/2” 3/4” and NPT 1/2” 3/4” Material: Brass Plating: Chrome, Natural brass, White painting, Blue painting Working pressure : 12bar Operating temperature : :57°C/68°C/79°C/93°C/141°C Model: ZSTBS15/ZSTBS20 Style: Sidewall f fire sprinkler Size: R1/2” 3/4” and NPT 1/2” 3/4” Material: Brass Plating: Chrome, Natural brass, White painting, Blue painting Working pressure : 12bar Operating temperature : :57°C/68°C/79°C/93°C/141°C 4.Zinc Alloy Fire Sprinkler    Model: ZSTX15/ZSTX20 Style: Pendent fire sprinkler Size: R1/2” 3/4” and NPT 1/2” 3/4” Material: Zinc alloy Plating: Chrome finished Working pressure : 10bar Operating temperature : 57°C/68°C/79°C/93°C/141°C Model: ZSTZ15/ZSTZ20 Style: Upright fire sprinkler Size: R1/2” 3/4” and NPT 1/2” 3/4” Material: Zinc alloy Plating: Chrome finished Working pressure : 10bar Operating temperature : 57°C/68°C/79°C/93°C/141°C Model: ZSTBS15/ZSTBS20 Style: Sidewall fire sprinkler Size: R1/2” 3/4” and NPT 1/2” 3/4” Material: Zinc alloy Plating: Chrome finished Working pressure : 10bar Operating temperature : 57°C/68°C/79°C/93°C/141°C 5.More other fire sprinkler    Fusible alloy fire sprinkler Model: Y-ZSTX15-72°C/ Y-ZSTZ15-72°C Style: Pendent and Upright Size: R1/2” and NPT R1/2” Material: Brass Working pressure: 12bar Operating temperature: 72°C Concealed fire sprinkler Model: ZSTDY15-68°C Style: Pendent Size: R1/2” and NPT 1/2” Material: Brass Working pressure : 12bar Operating temperature : 68°C ESFR fire sprinkler Model: ESFR20 Style: Pendent and Upright Size: R3/4” and NPT R3/4”” Material: Brass Working pressure: 12bar Operating temperature: 68°C FAQ Our Services BUSSINESS TERMS Payment terms : T/T, Western Union(30% deposit advance,70% against the copy of BL),L/C AT SIGHT. Delivery Time:Usually 15 days after the receipt of the deposit (depend on the actual quantity of customer) OEM: AVALIABLE BASE ON A REASONABLE QUANTITY !! Supply Ability: 200000 Piece/Pieces per Month Minimum Order Quantity: 1000 Packaging & Shipping  Send your inquiry to this supplier Send Inquiry Product Alert Subscribe to your interested keywords. We will send freely the latest and hottest products to your Inbox. Don't miss any trade information. Subscribe Your use of this website constitutes acknowledgement and acceptance of our Terms & Conditions. Copyright © 2009-2024 Bossgoo Co., Ltd. All rights reserved. | ||
