Product Overview
Product application:
Stainless steel pressure gauges are widely used in industrial sectors such as petroleum, chemical, synthetic fiber, metallurgy, and power stations to measure the pressure of various fluid media in processes that require high corrosion resistance and vibration resistance.
Accuracy levels: 2.5 and 1.6.
Measurement range: 0-0.1~0-100MPa, -0.1-0, -0.1-2.4MPa.
A stainless steel pressure gauge consists of a pressure guiding system (including joints, spring tubes, flow limiting screws, etc.), a gear transmission mechanism, a reading device (pointer and dial), and a housing (including case, cover, glass, etc.).
The pressure gauge displays pressure by the elastic deformation of stainless steel sensitive elements (Bourdon tube, bellows, bellows) inside the gauge, and then the pressure deformation is transmitted to the pointer by the conversion mechanism of the movement inside the gauge, causing the pointer to rotate.
For instruments that are filled with liquid (usually silicone oil or glycerin) inside the casing, it can resist severe working environment vibrations and reduce the pulsating effects of medium pressure.
Technical indicators:
1. Accuracy level: ± 1.0%; ±1.6% ； ± 2.5%.
2. Case diameter: 60mm; 100mm; 150mm ； 200mm。
3. Case material: 304 stainless steel, 316 stainless steel.
4. Case form: Safety shell construction, released after partition device
5. Elastic element and joint body material: 304; 316, the elastic element is welded with argon arc to the joint body.
6. Movement material: 304 stainless steel, 316 stainless steel.
7. Joint thread: M14 × 1.5; G1/4； M20×1.5 ； 1/2 NPT, etc.
8. Measurement range: -0.1~0 MPa or, 0.1~160 MPa
9. Pointer: Normal
10. Table glass: organic glass, safety double-layer glass
11. Seismic resistant filling material glycerin 98% (can choose silicone oil, fluorine oil or other categories)
12. Environmental temperature for use:
1) -25~70 ℃ (filled with liquid inside the shell)
2) -40~70 ℃ (no liquid filling inside the shell)
13. Temperature impact:
Not exceeding 0.4%/10 ℃ (with a temperature deviation of 20 ± 5 ℃)
14. Anti working environment vibration:
V · H · 4 level (filled with liquid inside the shell) V · H · 3 level (not filled with liquid inside the shell)
15. Weight:
0.2kg (Y-50)
0.35Kg(Y-60)
0.55Kg(Y-75)
0.85Kg(Y-100)
0.95kg (Y-150)
Connection size:
The main installation dimensions of pressure gauge direct installation instruments. Please refer to the following figure and table for details
External nominal diameter D
Mm joint size (mm)
dLd 1
60M14×1.5145
100M20×1.5206
one hundred and fifty
two hundred
two hundred and fifty
Note: When there are special requirements for the thread of the instrument joint, the user and the manufacturer shall negotiate to resolve them
Seismic resistant shell protection level:
IP54; IP55; IP65; IP66
The IP protection level is composed of two numbers, with each number indicating the level of dust prevention and protection against foreign objects; The second number represents the degree of sealing against moisture and water intrusion. The larger the number, the higher the protection level. The protection level represented by the two marked numbers is described as follows:
IP54 features: dustproof and waterproof.
The letter 5 represents dust prevention; The second letter 4 represents: to prevent splashing water from entering,
IP55 features: dustproof and waterproof.
The letter 5 represents dust prevention; The second letter 5 represents: to prevent the intrusion of sprayed water,
IP65 has good shock resistance and sealing performance; Advantages: dustproof and water-resistant. Used for shock resistant and explosion-proof instruments and in harsh on-site environments.
The letter 6 represents dust sealed and dust-proof. The second letter 5 represents: water spray,
IP66 features: dustproof and waterproof.
The letter 6 represents dust sealed and dust-proof. The second letter 6 represents: preventing the invasion of large waves.
The IP65 shock resistant gauge is equipped with an explosion-proof plug. The function of the explosion-proof plug is to prevent excessive pipeline pressure from causing the medium to spray out from the front of the pressure gauge and injure it. Therefore, an explosion-proof plug is installed at the back.
Installation precautions:
1. The selection of pressure measuring points should reflect the true situation of the measured pressure.
(1) Choose the section of the pipeline where the measured medium flows in a straight line, rather than at bends, forks, dead corners, or other places where vortices are easily formed.
(2) When measuring the pressure of a flowing medium, the pressure point should be perpendicular to the flow direction and any burrs in the borehole should be removed.
(3) When measuring liquid pressure, the pressure measuring point should be at the lower part of the pipeline to prevent gas accumulation in the pressure pipe. When measuring gas, the pressure measuring point should be above the pipeline to prevent liquid accumulation in the pressure pipe.