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365betͶע / Breath Valve / GHF-1 Fire Breathing Valve Consulting Hotline: 021-331007323

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GHF-1 fireproof breathing valve

GHF-1 fireproof breathing valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process


  Product name : Fire breathing valve Product model : GHF-1 type
   Driving method : Manual Connection form : Flange
   Product Brand : Hushan    Sealing material : Hard alloy, rubber
   Pressure range : Positive pressure: + 180mm water column Negative pressure: -30mm water column    Nominal diameter : DN80-DN250
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 GHF-1型防火呼吸阀 〗制造商,也是国内大型【 呼吸阀 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖GHF-1型防火呼吸阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ GHF-1 fire-resistant breathing valve ] and one of the large domestic [ breathing valve ] manufacturers. Since its establishment, the company has always been focusing on customer needs and continued innovation. The majority of agents and corporate customers provide the "GHF-1 fire breathing valve" solution, which is reliable in quality and affordable, so it sells well all over the country. Welcome new and old customers to call us or write us, we will provide you with the best service.

I. Introduction of GHF-1 fire-resistant breathing valve

   工作原理是用弹簧限位阀板,由正负压力决定或呼或吸。 The working principle of the fire breathing valve is to use a spring limit valve plate, which is determined by positive and negative pressure or exhales or sucks. 呼吸阀 打开呼出气体泄放正压;当容器承受负压时,防火呼吸阀打开吸入气体泄放负压。 The breathing valve should have both positive and negative pressure relief functions. Specifically: when the container is under positive pressure, the breathing valve opens and the exhaled gas releases positive pressure; when the container is under negative pressure, the fire breathing valve opens to inhale the gas. Pressure. This ensures that the pressure is within a certain range and that the container is safe. At the same time, there is a fire blocking plate at the inlet and outlet of the breathing valve. The fire stopper is used to prevent the mixed gas in the storage tank from contacting with the air, which will cause backfire and explosion, so it is necessary to install a fire breathing valve.

Operating pressure of GHF-1 fire breathing valve
Positive pressure: + 180mm water column Negative pressure: -30mm water column

Three, GHF-1 fire breathing valve installation method
Put the tank top breathing valve
① (as shown below, the same below), then remove the bezel
② Folding from the splice tube
③Into the tank
④ Flatten the inside, then place the fixed plate and disk at the center of the joint pipe flange, and put the electrostatic ground wire
⑤Press the gasket under the connection bolt of the breathing valve, and then reinstall the breathing valve.
呼吸阀 挡板吊装于呼吸阀与油罐的接合管下方,以减少大呼吸过程中油气外溢的损失。 1. The breathing valve baffle is hoisted under the joint pipe of the breathing valve and the oil tank to reduce the loss of oil and gas overflow during the large breathing process.
2. Please indicate the name, specifications and drawing number when ordering. Tank top splice tube actual height n.
GHF-1 fire breathing valve installation method
Fourth, GHF-1 fire breathing valve main shape and flange connection dimensions

Specification (DN)

Drawing number

Weight (㎏ / set)

Installation size (mm)







n + constant





n + constant





n + constant





n + constant





n + constant

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