YPF
JIECHUANG
This is a low range diaphragm pressure gauge.
It is used to measure low pressure of liquid, gas and steam.
The diaphragm can separate corrosive, sticky and easy-crystallized media.It avoids blockage and damage to the internal gauge parts.
Inside filled with glycerin or silicone oil, it is anti-vibration and long service life.
It is widely used in chemical, pharmaceutical, food, water treatment and industrial fields.
When the pressure P of the measured medium acts on the diaphragm,the diaphragm deforms and compresses the sealing fluid in the pressure measurement system of the instrument,generating a pressure of P-△P;when the rigidity of the diaphragm is sufficiently low,△P remains minimal,and the pressure formed in the pressure measurement system of the instrument becomes approximately equal to the pressure of the measured medium.
Parameters
Parameter | Specification |
Product Name | Low Pressure Gauge |
Case Diameter | 63mm / 100mm / 150mm |
Pressure Range | -100kPa ~ 0kPa / 0~100kPa / 0~250kPa / 0~400kPa (custom ranges available) |
Accuracy Class | Class 1.6 / Class 2.5 |
Connection Type | Flanged (standard), Threaded/ Tri-Clamp (optional) |
Flange Material | 304 SS, 316L SS |
Diaphragm Material | 316L SS, Hastelloy C-276, Monel, Titanium, PTFE, Tantalum |
Wetted Parts | All 316L SS (standard); corrosion-resistant alloys (optional) |
Operating Temperature | -40°C ~ +70°C (extended range available upon request) |
Filling Liquid | Silicone oil / Medical glycerin (food-grade) |
Sealing Materials | NBR, FKM (Viton), PTFE, Silicone |
Protection Level | IP64 |
Dial Glass | Acrylic, Tempered Glass, PC, Double-Layer Explosion-Proof Glass |
Note: All parameters can be customized as required.
User Guide
● Pressure gauges should be installed horizontally or vertically.
● During installation or disassembly,do not apply torque to the instrument housing by hand;use dedicated wrenches for installation.
● Normal operating ambient temperature is -40℃~+70℃,relative humidity not exceeding 85%.
Table of Measuring Range and Accuracy Class
| Model | Measuring range(MPa) | Accuracy level(%) | Standard connection thread(mm) | ||||
| YTP-60 | 0~(0.10.16/0.25/0.4/0.6/1/1.6/2.5/4/6/10/16/25) -0.1~(0/0.15/0.3/0.5/0.9/1.5/2.4/3.9) | 2.5 | M14*1.5 | ||||
| YTP-100 YTP-150 | 0~(0.1/0.16/0.25/0.4/0.6/1/1.6/2.5/4/6/10/16/25) -0.1~(0/0.15/0.3/0.5/0.9/1.5/2.4/3.9) | 1.6 | M20*1.5 | ||||
Sealing fluid selection
| Sealing liquid | Pressure part temperature range | Specific weight g/cm³ | Volume expansion coefficient 1/℃ | Application | ||||
| High viscosity silicone oil | -10~200℃ | 1.07 | 0.95*10-3 | For high temperature use | ||||
| Low viscosity silicone oil | -30~100℃ | 0.94 | 1.08*10-3 | General use | ||||
| Glycerol queous solution | -5~100℃ | 1.27 | 0.61*10-3 | For food use | ||||
Corrosion resistance of diaphragm
The corrosion resistance of diaphragm gauges is ensured by appropriate material selection for components contacting the measured medium: diaphragm, flange, and sealing gasket;
Diaphragm materials: OCr17Ni12Mo2 (SUS316L), Monel alloy (Cu3ONi70), Hastelloy (H276C), Tantalum (Ta), fluoroplastic (F4);
Flange materials: SUS304, SUS316, PTFE-lined.
