YPF-100/YPF-150 series diaphragm pressure gaugeDetailed product description：

YPF-100, YPF-150 Diaphragm Pressure Gauge

Explanation:
Diaphragm pressure gauges are suitable for measuring the pressure or negative pressure of various fluid media that are corrosive, non solidifying, or non crystalline.
The corrosion resistance performance depends on the membrane material.  

□ Structural principle
The instrument consists of a measuring system (including flange joints, corrugated diaphragms), a transmission indicator mechanism (including connecting rods, gear transmission mechanisms, pointers, and dials), and a housing (including a case and cover ring). The instrument casing is a splash proof structure with good tightness, which can protect its internal mechanism from contamination.
The working principle of the instrument is based on the deformation of the elastic element (diaphragm on the measurement system). Under the pressure of the measured medium, the diaphragm is forced to undergo corresponding elastic deformation displacement. With the help of the connecting rod group and the transmission mechanism, the measured value is amplified and indicated on the dial by the pointer fixed on the gear.

Main Technical Instructions for YPF-100/YPF-150 Series Diaphragm Pressure Gauge
Accuracy level: 2.5
Operating environment temperature: -40 to+70 ℃; Relative humidity not exceeding 90%
Temperature effect: When the temperature deviates by 20 ± 5 ℃, the additional temperature error shall not exceed 0.04%/℃
Working position: Vertical installation.
Shell protection level: IP64


Scale range, external dimensions, and weight

model	Scale range	Pressure bearing section Inch D1	watch case Outer diameter D	Weight kg
YPF-100A	0-0.6, 0-0.1, 0-0.16, 0-0.25, 0-0.4 0-0.6, 0-0.1, 0-1.6, 0-2.5, -0.1-0 -0.1-0.06, -0.1-0.15, -0.1-0.3, -0.1-0.5 -0.1～0.9、-0.1～1.5、-0.1～2.4MPa	φ85	φ100	one point six
YPF-100B YPF-100B-F
		φ115
YPF-150A		φ85	φ150	one point eight
YPF-150B YPF -150B-F
		φ115
YPF-100B YPF-100B-F	0-1.6, 0-5, 0-4, 0-6, 0-10 0-16, 0-25, 0-40* -1.6-0, -2.5-0, -4-0, -6-0, -10-0 -16-0, -25-0, -40-0* -0.8-0.8, -1.2-1.2, -2-2, -3-3, -5-5 -8～8、-12～12、-20～20*kPa	φ160	φ100	two point nine
YPF-150B YPF-150B-F		φ160	φ150	three point two

*The dimension D1 of the pressure bearing part with specifications of 0-40, -40 to 0, and ± 20KPa is diameter 85