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XG/YPF series diaphragm pressure gauge Manufacturers
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  • XG/YPF series diaphragm pressure gauge
  • XG/YPF series diaphragm pressure gauge

XG/YPF series diaphragm pressure gauge

The XG/YPF series diaphragm pressure gauge is a local indication anti-corrosion pressure gauge with a corrugated diaphragm as the pressure-sensing elastic element. It consists of a measuring diaphragm, a joint/flange, a connecting rod transmission mechanism, and a case. The measured medium directly acts on the corrugated membrane, causing displacement deformation of the membrane under pressure. It is amplified by the connecting rod gear movement, driving the pointer to display the pressure value on the dial. The medium is blocked by the membrane and does not enter the interior of the movement. It is suitable for measuring the pressure of gases and liquids that are corrosive, viscous, and not easy to crystallize.

Product Advantages:
1. Strong anti-clogging ability: the diaphragm serves as a pressure-sensing element without small flow holes, suitable for measuring viscous, impurity-containing, and easily precipitated media, and is not prone to clogging or jamming of the meter.
2. It can measure micro pressure and low pressure, with high sensitivity of the diaphragm and a sensitive response to low pressure and pressure changes, suitable for measuring gas and liquid low-pressure conditions.
3. Good corrosion resistance: the diaphragm can be made of materials such as 316, Hastelloy, PTFE, etc., to cope with corrosive media and protect the internal structure of the instrument.
4. The structure is safe and reliable, with overload capacity better than that of a spring tube pressure gauge; The body structure is simple and easy to maintain, and can be paired with shock-resistant and electric contact heads to achieve alarm control.                                

Main selling points:
1. Not easy to block, no small flow channels, suitable for viscous, granular, and easily precipitated media, solving the problem of common pressure gauge needle blockage.
2. Sensitive low-pressure measurement; diaphragm pressure sensing element; fast response to micro-pressure and low-pressure changes; stable measurement.
3. There are multiple membrane materials to choose from, including 316L, Hastelloy, and PTFE membranes, to cope with various corrosive media.
4. It has good overload performance, resistance to instantaneous pressure impact, is not easy to damage pressure-sensing components, and has high operational reliability.
5. The function selection is flexible, and it can achieve pressure alarm through distribution contacts. It can also be used as a shock-resistant model, with simple installation and maintenance, and easy replacement.

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FAQ Performance Specifications

Q1: Are diaphragm pressure gauges and diaphragm pressure gauges the same thing?
A: No, they're not. The diaphragm of a pressure gauge is itself a pressure-sensing element, and the medium directly acts on the diaphragm. The diaphragm of the diaphragm pressure gauge is only used for isolation and relies on isolation fluid to transmit pressure. The membrane surface has a simpler structure and is suitable for low-pressure and anti-blocking conditions, but not for extremely high corrosion conditions.

Q2: Is a diaphragm pressure gauge suitable for measuring high pressure?
A: Not suitable, mainly used for low-pressure and low-pressure conditions. Spring tube pressure gauges are preferred for high-pressure scenarios, as exceeding the range can cause permanent deformation of the diaphragm, resulting in inaccurate measurements.

Q3: Is it easy to damage the membrane with particles in the medium?
A: Under normal working conditions, it is not easy to block, but long-term erosion from hard and sharp particles can wear down the membrane. For working conditions with more particles, it is recommended to use thickened or anti-corrosion-coated membranes to avoid direct impact of sharp materials on the membrane surface.

Q4: What are the common faults of diaphragm pressure gauges?
A: Mainly due to membrane deformation, zero offset, and pointer immobility. Mostly caused by overpressure, medium corrosion, and particle erosion. Do not use beyond the range; choose the correct membrane material for corrosive media; conduct regular calibration to ensure measurement accuracy.

Measurement range, pressure, portion size

Model Dial Range Pressure-Bearing Part Dimension D1
XG-YPF-100A 0~0.06, 0~0.1, 0~0.16, 0~0.25, 0~0.4
0~0.6, 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
-0.1~2.4 MPa		 Ø85
XG-YPF-100B Ø115
XG-YPF-100B-F
XG-YPF-150A Ø85
XG-YPF-150B
XG-YPF-150B-F Ø115
XG-YPF-100B / XG-YPF-100B-F 0~1.6, 0~2.5, 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		 Ø160
XG-YPF-150B / XG-YPF-150B-F Ø160

*0~40, -40~0, ±20kPa specification: Pressure-bearing part dimension D is Ø85.

Parameter Specification
Accuracy Class 2.5
Ambient Operating Temperature -40 ~ +70°C
Relative Humidity ≤ 90%
Temperature Effect When operating temperature deviates from 20 ± 5°C, the additional temperature error shall not exceed 0.04%/°C
Working Position Vertical mounting
Enclosure Protection Class IP64

Materials of Pressure-Transmitting System, Case and Other Main Parts

Model Diaphragm Flange Connector Sealing Gasket Case Material
XG-YPF-100A, XG-YPF-150A Cr15Ni7Mo (PH15-7Mo) 1Cr18Ni9 NBR (Nitrile Rubber) Cast Aluminum
XG-YPF-100B, XG-YPF-150B 316L (≤ 25 kPa) 1Cr18Ni9 PTFE 1Cr18Ni9
XG-YPF-100B-F, XG-YPF-150B-F 316L (≤ 25 kPa) 1Cr18Ni9 PTFE 1Cr18Ni9

Dimensions

XG-YPF-100 A/B  XG-YPF-150 A/B XG-YPF-100 B/F  XG-YPF-150 B/F
1001919 1001820
Model XG-YPF-100A XG-YPF-100B XG-YPF-100B-F XG-YPF-150A XG-YPF-150B XG-YPF-150B-F
D Ø100 Ø110 Ø110 Ø150 Ø160 Ø160
h 66 66 66 91 91 91
H 32 32 36 32 32 36
XG-Y P F-□-□
XG Xinguo Brand
Y Pressure Gauge
P Diaphragm
F Corrosion-resistant
□ Case Outer Diameter
100: Ø100 mm
150: Ø150 mm
□ Type
A: Diaphragm Pressure Gauge, M20×1.5 External Thread Connection
B: Stainless Steel Diaphragm Pressure Gauge, M20×1.5 External Thread Connection
B-F: Flange Stainless Steel Diaphragm Pressure Gauge, 25-4.0 HGJ Raised Face Flange

 

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Xinguo Group Co., Ltd.
ABOUT US Xinguo Group Co., Ltd.
Xinguo Group Co., Ltd. is a high-tech enterprise with subsidiaries including Anhui Xinguo Instrument Co., Ltd., Anhui Xinguo Alloy Co., Ltd., Anhui Xinguo Cable Co., Ltd. and Anhui Xinguo Precious Metals Co., Ltd. Founded in 1997, the Group is located in Tianchang City, Anhui Province — a National Civilized City. It has a registered capital of 118 million RMB, covers a land area of over 150 mu and a building area of 60,000 square meters. The company currently has more than 300 employees, among whom over 50 are professional and technical personnel including senior engineers, engineers and assistant engineers.
The Group is a China Custom XG/YPF series diaphragm pressure gauge Manufacturers and XG/YPF series diaphragm pressure gauge Supplier, mainly engages in the R&D, production and sales of temperature instruments, pressure instruments, level instruments, flow instruments and digital display instruments. Its product portfolio also encompasses power cables, control cables, compensation cables, computer cables, signal cables, MI heating cables, mineral insulated cables, electric heat tracing tapes, cable trays and accessories, high and low voltage distribution equipment, complete automation control systems, instrument valves, pipeline valves and fittings, glass instruments and laboratory equipment. We also supply platinum-rhodium wires, precision alloys and complete mechanical equipment, while providing supporting processing, manufacturing, sales and technical services. Additionally, we deal in professional instrument materials, alloy materials and precious metals. Our products are widely applied in power, petroleum, chemical, metallurgy, building materials, machinery, food, aerospace, new energy and other industrial sectors, as well as scientific research and education fields.
Anhui Xinguo Alloy Co., Ltd. is dedicated to manufacturing a full range of precision alloy materials and serves as a council member of the Instrument Materials Branch of China Instrument & Control Society. Its flagship products cover thermocouple alloy wires (K, N, E, J, T types), thermocouple compensation alloy wires (KX, EX, NX, JX, TX, KCA, KCB, NC, SC), high-resistance heating alloys, precision resistance alloys, heating resistance alloys, pure nickel wires, manganese-copper alloys and Monel alloys. These products are extensively used in aviation, petroleum, chemical engineering, machinery manufacturing, power and energy industries.
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