Product Overview
The YXJ-50E high purity contact pressure gauge with switch contacts is designed for local pressure indication and electrical alarm signal output in clean gas systems. It features a 2" / 50 mm dial, SUS316L wetted parts, VCR face seal connection, stainless steel electropolished case, and optional lower mount or centre back mount configurations for high purity pipeline installation.
For gas system buyers who need pressure monitoring but are not sure how to select the correct gauge, the YXJ-50E combines visual pressure reading and upper or lower limit alarm output in one compact instrument. It is commonly used in semiconductor gas systems, photovoltaic gas supply, specialty gas pipelines, gas panels, gas cabinets, and laboratory gas distribution systems where clean connection, pressure alarm, and media compatibility must be confirmed before purchase.
Product Parameters
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Product Name
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YXJ-50E High Purity Contact Pressure Gauge with Switch Contacts
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Model
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YXJ-50E
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Product Type
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Electric Contact Pressure Gauge / Contact Pressure Gauge
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Dial Diameter
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2" / 50 mm
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Pressure Range
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-0.1 to 7 MPa / 0-15 to 0-1000 psi
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Displayed Unit
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psi / bar / MPa, Need to confirm
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Accuracy Class
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2.5
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Wetted Material
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SUS316L
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Pressure Element
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SUS316L
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Case Material
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Stainless Steel, Electropolished
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Movement Material
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Stainless Steel
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Pointer Material
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Black Aluminum
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Process Connection
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VCR Face Seal Connection
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Connection Size
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Need to confirm
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Mounting Type
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Lower Mount (LM) / Centre Back Mount (CBM)
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Working Pressure
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Static: 3/4 full scale; Dynamic: 2/3 full scale; Momentary: full scale
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Contact Function
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Upper Limit Alarm / Lower Limit Alarm
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Signal Output
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Switch Signal Output
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Switching Voltage
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150 VDC / 100 VDC
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Withstand Voltage
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200 VDC
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Switching Current
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0.5 A
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Contact Power
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10 W
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Internal Surface Finish
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Ra ≤ 0.4 μm BA grade / Ra ≤ 0.25 μm EP grade
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Cleaning & Packaging
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Cleanroom vacuum packaging
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Leak Test
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Helium leak detection
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Protection Rating
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IP54 per EN 60529 / IEC 529
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Compatible Media
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Gas, liquid, corrosive media
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Application
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High purity gas, semiconductor gas system, gas panel monitoring
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Key Features
Pressure Alarm Output for Safer Monitoring
When buyers need more than visual pressure reading, the YXJ-50E integrates switch signal output for upper or lower limit alarm. This helps gas panel builders and system integrators detect abnormal pressure conditions and connect the gauge to external alarm or control circuits.
VCR Connection for Clean Gas Installation
For high purity gas lines where connection cleanliness and sealing performance matter, the VCR face seal connection supports installation in semiconductor gas systems, specialty gas pipelines, and clean gas distribution equipment while reducing the risk of choosing a wrong connection type.
SUS316L Wetted Parts for Media Compatibility
Customers often worry whether the gauge can contact clean, corrosive, or specialty media. The SUS316L wetted structure and optional BA or EP internal surface finish help support high purity gas, liquid, and corrosive media applications with clearer material selection.
Model Selection Guide
Selecting a contact pressure gauge is not only about pressure range. To avoid wrong purchase, users should check the working pressure, alarm function, connection type, mounting direction, media compatibility, and clean level before confirming the YXJ-50E configuration.
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Selection Point
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How to Confirm
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Selection Risk Avoided
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Pressure Range
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Confirm normal working pressure, maximum pressure, and alarm pressure point.
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Avoid unclear reading, overload, or incorrect alarm setting.
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Connection Standard
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Confirm VCR connection size according to the gas panel drawing or tube fitting standard.
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Avoid mismatch with existing pipeline, valve, or gas panel port.
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Mounting Direction
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Choose Lower Mount (LM) or Centre Back Mount (CBM) according to installation space.
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Avoid installation interference or poor dial visibility.
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Contact Function
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Confirm upper limit alarm or lower limit alarm and the required set point.
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Avoid wrong alarm logic in gas cabinet or control system.
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Clean Level
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Confirm BA or EP surface finish according to high purity gas requirements.
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Avoid using unsuitable surface finish in semiconductor or clean gas systems.
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Port Configurations
Lower Mount VCR Connection
Lower Mount (LM) configuration is suitable for vertical installation on gas panels, pressure monitoring points, and high purity gas line assemblies.
Centre Back Mount VCR Connection
Centre Back Mount (CBM) configuration helps save front panel space and supports rear connection layouts in compact gas cabinet or gas panel designs.
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Configuration
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Description
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Required Confirmation
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LM
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Lower mount process connection
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Pressure range, VCR size, and installation direction
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CBM
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Centre back mount process connection
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Panel depth, rear connection space, and cable routing
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Ordering Information
For RFQ, please provide the following information so that the correct YXJ-50E contact pressure gauge configuration can be confirmed before production.
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RFQ Information
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What to Provide
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Media Information
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Gas or liquid name, corrosive condition, and high purity requirement
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Pressure Information
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Working pressure, maximum pressure, pressure unit, and alarm set point
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Mechanical Connection
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VCR connection size, lower mount or centre back mount, and installation space
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Electrical Requirement
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Upper or lower limit alarm, wiring requirement, voltage, current, and control system connection
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Clean Level Requirement
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BA grade, EP grade, cleanroom vacuum packaging, or other clean gas system requirement
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Quantity and Project Use
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Required quantity, gas panel project, gas cabinet project, laboratory gas line, or semiconductor gas system
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Application Scenarios
Semiconductor Gas System
Used for pressure indication and alarm signal output in semiconductor process gas lines, gas cabinets, gas panels, and high purity hook-up applications.
Specialty Gas Pipeline
Suitable for specialty gas distribution systems where clean connection, SUS316L wetted material, and pressure alarm function are required.
Laboratory Gas Supply
Applicable for laboratory gas lines, analytical instrument gas supply, test equipment, and pressure monitoring points requiring local reading and electrical output.
Quality Control
Material Inspection
SUS316L wetted parts and stainless steel components are checked to support media compatibility in high purity gas applications.
Surface Finish Control
BA or EP internal surface finish can be selected according to the cleanliness requirement of gas panels and semiconductor gas systems.
Helium Leak Detection
Helium leak detection helps verify the sealing performance required for clean gas connection and pressure monitoring applications.
Cleanroom Vacuum Packaging
Cleanroom vacuum packaging helps protect the gauge before installation in high purity gas delivery and specialty gas pipeline projects.
FAQ
Q1: What is a contact pressure gauge?
A contact pressure gauge indicates pressure locally and provides switch signal output when the pressure reaches a set alarm point. It is used when users need both visual pressure reading and electrical alarm output.
Q2: How is it different from a normal pressure gauge?
A normal gauge only shows pressure. The YXJ-50E contact pressure gauge also provides switch contacts for upper or lower pressure alarm, helping the gas system send a warning or control signal.
Q3: What information should I confirm before ordering?
Please confirm gas or liquid media, pressure range, pressure unit, VCR connection size, mounting type, alarm set point, contact type, electrical rating, and clean level requirement.
Q4: Can the YXJ-50E be used in semiconductor gas systems?
Yes. It is designed for high purity applications with SUS316L wetted parts, VCR face seal connection, cleanroom vacuum packaging, and optional BA or EP internal surface finish.
Q5: Which pressure range should I choose?
Select a range that covers your normal working pressure and alarm point. If the range is too high, the reading may be less clear; if it is too low, the gauge may be overloaded. Please provide your working pressure and maximum pressure for selection.
Q6: What connection size is available?
The product uses a VCR face seal connection. The exact VCR size should be confirmed according to your gas panel drawing, tube size, or matching fitting standard.
Q7: Should I choose lower mount or centre back mount?
Choose lower mount for vertical pipeline or panel installation. Choose centre back mount when the connection needs to enter from the rear of a compact gas panel or cabinet.
Q8: Can the alarm point be customized?
The alarm requirement should be confirmed before order, including upper or lower limit alarm, set pressure, wiring requirement, and whether the signal is connected to a PLC, alarm unit, or other control device.
