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UGS/UNS quartz tube level gauge Manufacturers
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  • UGS/UNS quartz tube level gauge
  • UGS/UNS quartz tube level gauge

UGS/UNS quartz tube level gauge

The UQZ-08 remote transmitter consists of a liquid level sensor and a conversion module. The sensor of the transmitter is fixed in a bundled form on the outside of the main tube of the UZ-type magnetic float level gauge, so that it is in the same magnetic coupling system as the level gauge. When the magnetic float moves up and down with the liquid level, the dry spring chip group corresponding to the liquid level position is affected and activated by the magnetic field inside the float, and the resistance chain value changes. The changed resistance signal is converted into a two-wire 4-20mADC standard signal output through the conversion module. This signal can be easily used in conjunction with our company's microcomputer industrial intelligent control instrument or connected to other secondary instruments to achieve the purpose of display, control, adjustment, and alarm. There are zero position adjustment knobs and full-scale adjustment knobs on the circuit board inside the transmitter housing, which can easily determine the zero position and full-scale point positions.

Product Features:
Simple structure, easy installation, reliable performance, corrosion resistance, explosion-proof, and clear display.                   

Main application industries:
1. Petrochemical industry
Petrochemical equipment, refineries, chemical reaction vessels, measuring high-temperature corrosive media, easily crystallizable viscous materials, tank liquid level, tower differential pressure, process pipeline pressure, isolating diaphragm remote transmission to avoid direct contact of the medium with the transmitter body.
2. Power industry (thermal power/cogeneration)
Boiler drum liquid level, deaerator, high- and low-pressure heater, measuring high-temperature steam and boiler water; The pressure and liquid level monitoring of the power plant water treatment system is connected to the DCS system through remote signal transmission for remote monitoring and interlocking.
3. Metallurgical industry
Steel smelting and non-ferrous metal smelting. Blast furnace and converter supporting processes, high-temperature slurry, corrosive electrolyte, measurement of tank level, pipeline differential pressure, resistance to dust, high temperature, and harsh on-site environment.
4. Water treatment and municipal environmental protection: Large-scale sewage treatment plants, water treatment plants, and chemical wastewater treatment. Sludge, high-impurity wastewater, corrosive agent storage tanks, tank level, pipeline pressure, and remote transmission to achieve remote data collection from the central control room.

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FAQ Performance Specifications

Q1: What is the biggest difference between a remote transmitter and a regular pressure transmitter?
A: The ordinary transmitter medium directly enters the measurement chamber; The remote transmitter relies on an isolation diaphragm and an oil-filled capillary tube to transmit pressure, and the medium does not come into contact with the transmitter body. Suitable for high-temperature, high-viscosity, easily crystallizable, and highly corrosive media, enabling on-site measurement and remote signal reception in the central control room.

Q2: Is it better to have a longer capillary tube for remote transmitters? What are the restrictions?
A: It's not that the longer is better. Excessive capillary length can increase temperature drift and affect measurement accuracy. It is generally recommended to measure 1-5 meters. For working conditions with large temperature differences, try to shorten the capillary tube as much as possible, and at the same time, do a good job of capillary tube protection to avoid squeezing and bending.

Q3: Which operating conditions require the use of remote transmitters?
A: ① High temperature of the medium, exceeding the tolerance temperature of the transmitter body; ② The medium is viscous, crystalline, and prone to clogging the pressure pipe; ③ Strong corrosive media can damage the measuring components of the transmitter; ④ The hygiene requirements are high, and there should be no working conditions with dead corners caused by pressure.

Q4: What parameters can remote transmitters mainly measure?
A: Mainly measuring pressure and differential pressure, achieving liquid level and interface measurement through differential pressure conversion. Widely used in storage tanks, reactors, and towers, outputting 4-20mA standard signals to interface with DCS/PLC systems.

Specially manufactured 99.99% SiO₂ transparent quartz tube. Its deformation point is 1077°C, and its softening point is 1730°C.
Compressive strength: 10 MPa; coefficient of thermal expansion: 5.5 × 10⁻⁷. After undergoing special processing, it exhibits resistance to high temperatures and high pressures, as well as excellent mechanical properties.
Operating pressure: 1.6, 2.5, 4.0, 6.4, 10.0 MPa
Operating temperature: <520°C
Measurement range L: The measurement range is determined by the center-to-center distance: 300, 500, 800, 1100, 1400, 1700, 2000 mm. Please specify dimensions for special specifications.
Quartz tube outer diameter (mm): Φ24, Φ29, Φ40
Heating steam jacket: G1/2" male thread.
Flange Connections: Conform to the HG20592–20635-2009 flange standards most recently issued by the Ministry of Chemical Industry in 2009. Flange nominal diameters: DN20, DN25. If the user requires other standards (such as GB, ANSI, etc.), the design can be customized according to the user’s needs.
Automatic Steel Ball Shut-off Pressure: Greater than 0.2 MPa
Weight: 15–30 kg.

Selection Table for Quartz Tube Level Gauges

No. Item Model Specifications Part Number Description
1 XQ/UGS/UNS Quartz Tube Level Gauge
2 Additional Device 1 Standard Type
2 With Steam Jacket
3 With Anti-Frost Device
4 With Lighting Device
3 Classification A Single-color for liquid level measurement
B Two-color for liquid level measurement
C Three-color for interface measurement
D Large Diameter
4 Nominal Pressure (MPa) 1 1.6 (Class150)
2 2.5 (Class300)
3 4.0 (Class600)
4 6.3 (Class900)
5 10.0 (Class1500)
5 Wetted Material C Carbon Steel
P Stainless Steel (321, 316L)
6 Measuring Range (mm) 3 300
5 500
8 800
11 1100
14 1400
17 1700
20 2000
X Special size; follow with dimension number after X
Example UNS - 1 B 2 P OB Model: Standard two-color quartz tube level gauge
Working pressure: 2.5MPa
Material: Stainless steel
Measuring range: L = 800 mm


UGS/UNS Display Height vs. Measurement Range Table (Display height refers to the scale height)

Measuring Range L (mm) 300 500 800 1100 1400 1700 2000
Display Height H (mm) 100 300 600 900 1200 1500 1800

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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 UGS/UNS quartz tube level gauge Manufacturers and UGS/UNS quartz tube level 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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