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This 1.25-inch spiral tube fire extinguisher pressure gauge is specially designed for portable pneumatic equipment and conforms to EN837-1 industry standards. It uses high-elasticity beryllium copper/phosphor bronze pressure sensing elements to ensure accurate readings of ± 5% in extreme environments. It is a core component to ensure the safety and reliability of fire extinguishing equipment and support wholesale business.
the use of beryllium copper or phosphor bronze material spiral tube, high pressure sensing sensitivity, to ensure that the pointer displacement and internal pressure into a strict linear relationship, reading error control within 4%.
The shell is made of stainless steel, which has strong salt spray corrosion resistance and can maintain structural integrity for more than 10 years in wet or chemically corrosive industrial environments.
The dial is coated with long-afterglow luminous powder. Even in a dark environment where fire is filled with smoke or power is off, rescuers can clearly identify the pressure status of the fire extinguisher within 3 seconds.
the high-sealing assembly process and the high-transparency mask are adopted to effectively block the entry of water vapor, thus solving the problem of fogging of the dial of the fire extinguisher under the environment of drastic temperature change, and ensuring that the reading can be clearly seen at any time.
The internal mechanical structure has been specially reinforced and can withstand 1.2-meter-high drop impact and high-frequency vibration without displacement, thus solving the problem that the fire extinguisher is easily misaligned during transportation and movement.
through high and low temperature cycle fatigue test, the pressure gauge can operate stably under extreme weather conditions from -40°C to +60°C, ensuring that the fire extinguisher can maintain normal pressure display function in cold north or hot equatorial areas.
| Parameter Items | Technical Data |
| Product Model | 1.25″ Spiral Tube Series |
| Diameter | 1”,1.25”, 1.5” |
| Construction | Spiral tube |
| Shell material | Stainless Steel 304 |
| Thread | Back Entry 1/8 BSP, 1/8 NPT, Special threads available. |
| Operating Temperature | -40°C to +60°C |
| Standard | EN837-1 or DIN |
| Indicator area | Red (low voltage), Green (normal) |
| Accuracy | ±5%FSD |
Long-term pressure retention: Compared with ordinary spring tubes, the spiral tube of this product has undergone 5000 fatigue pressure cycle tests, and its zero drift rate is less than 0.5 percent, ensuring that the pressure reading of the fire extinguisher is still true and effective after several years of storage.
Strict quality control process: every 1 pressure gauges undergo 1.2 times overpressure test and nitrogen leak detector test before leaving the factory. the leak rate standard is 15% higher than the industry average, greatly reducing the scrap rate of fire extinguishers caused by pressure gauge leakage.
the use of low-friction lubrication drive shaft completely solves the failure of the internal mechanical rust caused by long-term storage of the traditional cheap watch and the pointer does not move with the pressure change.
in view of the severe cold in the north and the hot summer in the south, the thermal expansion and contraction coefficient of the mask is optimized, and the potential safety hazard of the transparent mask cracking or popping under the severe temperature difference fluctuation is solved.
through high-precision CNC machining threads, the problem of interface micro-leakage caused by thread errors in the assembly process of the purchaser is solved.
This product fully complies with international fire protection standards and provides a variety of customized interfaces. It is an ideal core accessory for OEM assembly of various portable and wheeled fire extinguishers.
stable quality performance and perfect export certification, reduce the after-sales return rate, is to expand the fire-fighting equipment product catalog, enhance the brand reputation of a reliable source of goods.
in the fire extinguisher filling and maintenance process, the high adaptability of this product can quickly replace the aging or damaged pressure gauge, improve the maintenance efficiency and ensure the acceptance of the project.
clear luminous dial and accurate partition display facilitate monthly fire routine inspection within the enterprise and reduce the missing rate of manual inspection.
01
clean the fire extinguisher valve interface, ensure that the thread is free of foreign matter, and select the matching sealing gasket according to the interface type.
02
Use a wrench to clamp the hexagon of the pressure gauge base and tighten it clockwise. It is strictly forbidden to directly grasp the watch case for rotation to avoid damaging the internal spiral structure.
03
regularly observe whether the pointer is in the green area; if the pointer falls into the red area, it is necessary to immediately charge nitrogen or replace the agent.
04
if the mask cracks or the pointer can not return to zero, should be timely replacement of the new table, it is strictly prohibited to remove the dial under pressure.
A: Yes. Includes range adjustment, material selection and addition of special features.
A: The spiral tube can provide greater displacement in a small size (such as 1.25 inches) dial, without complicated gear amplification mechanism, simpler structure, better vibration resistance and less prone to failure.
A: Our pressure gauges are designed and produced with reference to EN837-1 or DIN and CE standards. We can provide quality inspection reports that meet international fire protection requirements and support exports to the global market.
A: If any quality problems are found during use, just provide the purchase certificate and problem description, we will respond quickly, arrange the return or repair, and bear the related costs.
A: Our pressure gauges have undergone multiple calibration procedures during the production process, and use high-precision calibration equipment to ensure accurate readings of each meter.
A: As long as the pointer is completely within the green area, it is qualified. If it is near the red edge, it is recommended to perform a pressure check to ensure that the fire extinguisher has sufficient power to spray the agent in an emergency.
This 1.25-inch spiral tube fire extinguisher pressure gauge is specially designed for portable pneumatic equipment and conforms to EN837-1 industry standards. It uses high-elasticity beryllium copper/phosphor bronze pressure sensing elements to ensure accurate readings of ± 5% in extreme environments. It is a core component to ensure the safety and reliability of fire extinguishing equipment and support wholesale business.
Outer diameter:
1 ″ (25mm) to 1.5 ″ (40mm)
Accuracy class:
EN837-1or DIN
Interface thread:
1/8 “NPT
the use of beryllium copper or phosphor bronze material spiral tube, high pressure sensing sensitivity, to ensure that the pointer displacement and internal pressure into a strict linear relationship, reading error control within 4%.
The shell is made of stainless steel, which has strong salt spray corrosion resistance and can maintain structural integrity for more than 10 years in wet or chemically corrosive industrial environments.
The dial is coated with long-afterglow luminous powder. Even in a dark environment where fire is filled with smoke or power is off, rescuers can clearly identify the pressure status of the fire extinguisher within 3 seconds.
Equipped with 12V independent power supply LED backlight module, polycarbonate watch mirror with light transmittance up to 92% ensures uniform light distribution. At night or in low-light industrial environments, the reading sharpness is improved by 3 times, and the circuit life exceeds 50,000 hours.
The internal mechanical structure has been specially reinforced and can withstand 1.2-meter-high drop impact and high-frequency vibration without displacement, thus solving the problem that the fire extinguisher is easily misaligned during transportation and movement.
through high and low temperature cycle fatigue test, the pressure gauge can operate stably under extreme weather conditions from -40°C to +60°C, ensuring that the fire extinguisher can maintain normal pressure display function in cold north or hot equatorial areas.
| Parameter Items | Technical Data |
| Product Model | 1.25″ Spiral Tube Series |
| Diameter | 1”,1.25”, 1.5” |
| Construction | Spiral tube |
| Shell material | Stainless Steel 304 |
| Thread | Back Entry 1/8 BSP, 1/8 NPT, Special threads available. |
| Operating Temperature | -40°C to +60°C |
| Standard | EN837-1 or DIN |
| Indicator area | Red (low voltage), Green (normal) |
| Accuracy | ±5%FSD |
Long-term pressure retention: Compared with ordinary spring tubes, the spiral tube of this product has undergone 5000 fatigue pressure cycle tests, and its zero drift rate is less than 0.5 percent, ensuring that the pressure reading of the fire extinguisher is still true and effective after several years of storage.
Strict quality control process: every 1 pressure gauges undergo 1.2 times overpressure test and nitrogen leak detector test before leaving the factory. the leak rate standard is 15% higher than the industry average, greatly reducing the scrap rate of fire extinguishers caused by pressure gauge leakage.
the use of low-friction lubrication drive shaft completely solves the failure of the internal mechanical rust caused by long-term storage of the traditional cheap watch and the pointer does not move with the pressure change.
in view of the severe cold in the north and the hot summer in the south, the thermal expansion and contraction coefficient of the mask is optimized, and the potential safety hazard of the transparent mask cracking or popping under the severe temperature difference fluctuation is solved.
through high-precision CNC machining threads, the problem of interface micro-leakage caused by thread errors in the assembly process of the purchaser is solved.
This product fully complies with international fire protection standards and provides a variety of customized interfaces. It is an ideal core accessory for OEM assembly of various portable and wheeled fire extinguishers.
stable quality performance and perfect export certification, reduce the after-sales return rate, is to expand the fire-fighting equipment product catalog, enhance the brand reputation of a reliable source of goods.
in the fire extinguisher filling and maintenance process, the high adaptability of this product can quickly replace the aging or damaged pressure gauge, improve the maintenance efficiency and ensure the acceptance of the project.
clear luminous dial and accurate partition display facilitate monthly fire routine inspection within the enterprise and reduce the missing rate of manual inspection.
01
clean the fire extinguisher valve interface, ensure that the thread is free of foreign matter, and select the matching sealing gasket according to the interface type.
02
Use a wrench to clamp the hexagon of the pressure gauge base and tighten it clockwise. It is strictly forbidden to directly grasp the watch case for rotation to avoid damaging the internal spiral structure.
03
regularly observe whether the pointer is in the green area; if the pointer falls into the red area, it is necessary to immediately charge nitrogen or replace the agent.
04
if the mask cracks or the pointer can not return to zero, should be timely replacement of the new table, it is strictly prohibited to remove the dial under pressure.
A: Yes. Includes range adjustment, material selection and addition of special features.
A: The spiral tube can provide greater displacement in a small size (such as 1.25 inches) dial, without complicated gear amplification mechanism, simpler structure, better vibration resistance and less prone to failure.
A: Our pressure gauges are designed and produced with reference to EN837-1 or DIN and CE standards. We can provide quality inspection reports that meet international fire protection requirements and support exports to the global market.
A: If any quality problems are found during use, just provide the purchase certificate and problem description, we will respond quickly, arrange the return or repair, and bear the related costs.
A: Our pressure gauges have undergone multiple calibration procedures during the production process, and use high-precision calibration equipment to ensure accurate readings of each meter.
A: As long as the pointer is completely within the green area, it is qualified. If it is near the red edge, it is recommended to perform a pressure check to ensure that the fire extinguisher has sufficient power to spray the agent in an emergency.