Urban gas infrastructure is a critical part of modern energy supply.
Before natural gas reaches homes, commercial buildings and industrial users, it passes through transmission pipelines, city gate stations, regional distribution networks, regulator cabinets and metering equipment. Pressure changes continuously throughout this journey as the gas is transported, regulated and distributed.
An abnormal pressure condition at any point may affect supply stability, measurement accuracy, equipment performance or system safety.
Modern gas infrastructure therefore requires more than local mechanical gauges. It needs continuous pressure data that can be transmitted to controllers, monitoring terminals and digital management platforms for:
- real-time operating monitoring;
- pressure regulation;
- overpressure and underpressure warning;
- equipment diagnosis;
- gas-flow compensation;
- remote control;
- preventive maintenance.
To support these applications, we developed the WPCK63 Diffused Silicon Pressure Transmitter, a compact, stainless-steel pressure transmitter designed for gas pressure measurement and other demanding industrial applications.
With fast response, wide temperature compensation, configurable pressure ranges, IP68 protection and intrinsic-safety options, WPCK63 provides a flexible sensing platform for smart gas networks.
Why Pressure Is a Core Parameter in Gas Systems
Gas supply networks operate at multiple pressure levels.
A typical system may include:
- high-pressure transmission pipelines;
- medium-pressure distribution networks;
- regional regulator stations;
- outdoor regulator cabinets;
- low-pressure service pipelines;
- commercial and industrial gas meters.
Each section places different demands on the pressure transmitter.
High-pressure transmission points require suitable range, overload resistance and long-term stability. Medium-pressure distribution networks depend on continuous pressure information to maintain regional balance. Low-pressure service networks require sufficient measurement resolution to identify smaller fluctuations.
At regulator cabinets, both inlet and outlet pressure must be monitored to confirm that the regulating equipment is operating correctly. In gas-flow meters, pressure data is combined with temperature and flow information to convert operating volume into standard volume.
Pressure measurement supports far more than displaying a number. It forms the data foundation for control, safety protection and intelligent gas-network management.
Introducing the WPCK63 Diffused Silicon Pressure Transmitter
The WPCK63 series uses a diffused silicon pressure-sensing element, a high-reliability amplification circuit and wide temperature compensation to convert the measured pressure into a standard electrical output.
Its compact and lightweight design simplifies installation in space-limited equipment. The integrated stainless-steel structure improves corrosion resistance, while the corrugated cable conduit and aviation connector support use in demanding field environments.
The standard product supports pressure ranges from −100 kPa to 6 MPa, gauge, absolute and sealed-gauge pressure references, 0.2–2.3 V or I²C output, ±0.5% FS accuracy and a response time of no more than 1 ms.
Main WPCK63 Specifications
| Tham số | Đặc điểm kỹ thuật |
|---|---|
| Measurement principle | Diffused silicon pressure sensing |
| Phạm vi áp suất | −100 kPa to 6 MPa |
| Pressure reference | Gauge / absolute / sealed gauge |
| Standard outputs | 0.2–2.3 V / I²C |
| Sự chính xác | ±0.5% FS |
| Trễ | 0.1% FS |
| Độ lặp lại | 0.1% FS |
| Nhiệt độ trôi | ≤±0.03% FS/°C |
| Thời gian đáp ứng | ≤1 ms |
| Áp lực quá tải | 150%, 200% or 300% FS, depending on range |
| cuộc sống làm việc | ≥1 × 10⁶ pressure cycles |
| Nhiệt độ làm việc | −30°C to 85°C |
| Nhiệt độ bảo quản | −40°C to 125°C |
| Sự ổn định lâu dài | ≤±0.3% FS/year |
| Standard pressure thread | M20 × 1.5 |
| Vật liệu nhà ở | 304 stainless steel |
| Diaphragm material | thép không gỉ 316L |
| Mức độ bảo vệ | IP68 |
| Kết nối điện | Corrugated cable conduit with M12 aviation connector |
The standard measurement ranges include 0–10 kPa, 0–20 kPa, 0–35 kPa, 0–70 kPa, 0–100 kPa, 0–160 kPa, 0–250 kPa, 0–500 kPa, 0–1 MPa, 0–1.6 MPa, 0–2.5 MPa, 0–4 MPa and 0–6 MPa, together with a −100–0 kPa negative-pressure option.
Built for Demanding Gas Pressure Applications
Compact Integrated Stainless-Steel Structure
Gas equipment often has limited installation space, particularly inside regulator cabinets, metering assemblies and distributed monitoring terminals.
WPCK63 combines the sensing element, compensation electronics and mechanical pressure interface in a compact transmitter structure. Its stainless-steel construction supports corrosion resistance and mechanical durability without requiring a large external enclosure.
The standard housing uses 304 stainless steel, while the pressure diaphragm uses 316L stainless steel. Alternative housing materials and mechanical configurations can be discussed for application-specific projects.
Fast Dynamic Response
Pressure inside a gas system may change rapidly when:
- downstream demand increases or decreases;
- a valve opens or closes;
- a regulator changes position;
- a compressor operating condition changes;
- an abnormal pressure loss occurs.
With a response time of no more than 1 ms, WPCK63 can provide the controller with rapid pressure feedback, helping the system respond to transient pressure changes and reduce control delay.
Wide Temperature Compensation
Outdoor gas equipment may experience significant seasonal and day-to-night temperature variation.
The digital-output version is compensated from −10°C to 70°C, while the analogue-output version is compensated from −20°C to 60°C. The overall working-temperature range extends from −30°C to 85°C.
This temperature compensation helps reduce environmental influence on the pressure output and supports stable operation in outdoor cabinets, pipeline installations and other changing environments.
IP68 Environmental Protection
Gas pressure transmitters may be installed outdoors, underground or in locations exposed to condensation, rain, dust and moisture.
The IP68 protection rating helps protect the internal sensing and signal-conditioning components against dust and water ingress under the specified installation conditions.
This makes WPCK63 suitable for applications such as:
- outdoor gas regulator cabinets;
- underground monitoring points;
- gas pipeline equipment;
- water-prone equipment compartments;
- exposed industrial installations.
Intrinsic-Safety Option for Hazardous Areas
Gas pressure monitoring may take place in areas where flammable gas atmospheres can occur.
The WPCK63 ordering information includes an Ex ia IIC T6 Ga intrinsic-safety option. This allows the product to be evaluated for hazardous-area applications when used according to the applicable certificate, safety barrier requirements, wiring rules and complete system design. ([winsen-sensor.com][2])
Final hazardous-area installation must always follow the approved product configuration and local regulatory requirements.
Flexible Configuration for OEM Equipment
Gas equipment manufacturers may use different controllers, power supplies, connectors, pressure interfaces and mechanical layouts.
WPCK63 can be configured according to the actual system requirements.
Available customization options include:
- pressure range;
- gauge, absolute or sealed-gauge reference;
- analogue or digital output;
- pressure thread;
- cable length;
- connector type;
- housing material;
- installation structure;
- other output signals.
The I²C version uses a 3.0–3.6 V supply, while the 0.2–2.3 V output version supports a 3–24 V supply. Other outputs can be discussed for customized projects.
This flexibility allows the transmitter to be integrated into different gas-network terminals, regulator systems and metering platforms without forcing manufacturers to redesign the complete equipment architecture.
Application 1: Gas Pipeline Pressure Monitoring
Gas pipelines form a multi-level transmission and distribution network.
Pressure varies because of:
- gas demand;
- pipe friction;
- valve operation;
- regulator behavior;
- compressor output;
- temperature changes;
- leakage or equipment faults.
Distributed pressure transmitters installed at key network nodes allow operators to see these changes continuously.
High-Pressure Transmission
High-pressure sections require suitable measurement range, overload capability and long-term stability.
Pressure data can support:
- main pipeline operating monitoring;
- valve and compressor control;
- overpressure protection;
- pressure-trend analysis;
- remote dispatching;
- abnormal pressure-drop warning.
WPCK63 provides selectable ranges up to 6 MPa, while overload capability varies from 150% to 300% FS according to the selected range. ([winsen-sensor.com][2])
Medium-Pressure Distribution
Medium-pressure pipelines connect major gas infrastructure with regional regulator stations and downstream networks.
Continuous pressure data helps gas operators:
- maintain regional pressure balance;
- monitor supply conditions;
- identify abnormal pressure loss;
- optimize valve settings;
- improve network-dispatch efficiency.
When pressure measurements from multiple nodes are connected to a SCADA or IoT platform, the network becomes more visible and easier to manage.
Low-Pressure Delivery
Low-pressure networks require a different measurement strategy.
The total pressure may be lower, but smaller pressure changes can affect:
- end-user supply stability;
- gas appliance operation;
- commercial burner performance;
- regulator output quality.
WPCK63 provides low-range options beginning at 0–10 kPa, allowing the measuring range to be matched more closely to the application rather than using an unnecessarily broad range.
For a broader discussion of pressure measurement across the gas network, see Pressure Sensors Deliver Safety Insights Across Gas Transmission and Distribution Networks.
Application 2: Gas Regulator Cabinets
A gas regulator cabinet connects the upstream distribution network with downstream users.
Its core function is to reduce and stabilize gas pressure. Regardless of how the inlet pressure or downstream demand changes, the outlet pressure must remain within the specified operating range.
A typical regulator cabinet monitors:
- inlet pressure;
- outlet pressure.
More safety-critical configurations may include an additional outlet transmitter for redundancy, verification or independent protection.
Inlet Pressure Monitoring
The inlet transmitter determines whether upstream pressure remains within the regulator’s acceptable operating range.
Excessively high inlet pressure may stress the regulating equipment. Insufficient inlet pressure may prevent the regulator from maintaining downstream supply.
Outlet Pressure Feedback
The outlet pressure is the main control variable.
The transmitter continuously sends the actual regulated pressure to the controller. The signal can be used to:
- adjust the regulating mechanism;
- maintain the pressure setpoint;
- detect pressure overshoot;
- trigger overpressure or underpressure alarms;
- activate safety shutoff logic.
Why WPCK63 Is Suitable for Regulator Cabinets
WPCK63 combines several characteristics that are valuable for outdoor gas-regulation equipment:
- fast response;
- selectable low- and medium-pressure ranges;
- wide temperature compensation;
- IP68 protection;
- intrinsic-safety option;
- stainless-steel structure;
- customizable output and connection;
- long-term stability of ≤±0.3% FS/year.
These features help transform the regulator cabinet from a passive pressure-reduction device into an intelligent control node capable of remote monitoring, alarm linkage and condition diagnosis.
Read more in Cảm biến áp suất ổn định tủ điều tiết khí như thế nào.
Application 3: Gas Flow Meter Pressure Compensation
Gas volume changes with pressure and temperature.
A flow meter measures gas under the actual pipeline conditions. For standardized reporting, energy management or trade settlement, the measured operating volume may need to be converted to a standard reference condition.
This calculation normally requires three inputs:
- gas-flow data;
- gas temperature;
- gas pressure.
The pressure transmitter therefore directly influences the accuracy of the final compensated volume.
Pressure Sensor Requirements for Gas Metering
A pressure transmitter used with a gas flow meter should provide:
- suitable measurement accuracy;
- low hysteresis;
- good repeatability;
- low long-term drift;
- fast dynamic response;
- stable temperature behavior;
- convenient electrical integration.
WPCK63 provides 0.1% FS hysteresis, 0.1% FS repeatability and long-term stability of no more than ±0.3% FS per year.
Its analogue and I²C output options allow it to connect with different flow-meter controllers and compensation systems.
The final configuration should be selected according to the required metrological performance, calibration procedure, pressure range and flow-meter certification requirements.
From Pressure Measurement to Smart Gas Management
A modern pressure transmitter is no longer only a measurement component.
When connected to a controller, communication network and cloud platform, pressure data can support:
- real-time pressure visualization;
- automatic alarm generation;
- pressure-trend analysis;
- regional supply balancing;
- remote equipment diagnosis;
- preventive maintenance;
- digital-twin modelling;
- historical event recording.
A typical smart gas architecture includes:
| System Layer | Chức năng |
|---|---|
| WPCK63 pressure transmitter | Converts gas pressure into an electrical signal |
| Local controller | Processes data and performs alarm or control logic |
| Communication network | Transfers pressure data to the monitoring platform |
| SCADA or IoT platform | Displays current status and historical trends |
| Management system | Supports dispatching, maintenance and emergency response |
By deploying pressure transmitters at multiple points, gas operators can move from reacting after a failure toward identifying abnormal trends before they become larger problems.
Selecting the Right WPCK63 Configuration
Select the Pressure Range
The range should cover the normal operating pressure while maintaining useful measurement resolution.
The selection should also consider:
- startup pressure;
- pressure surges;
- regulator failure conditions;
- proof pressure;
- system test pressure;
- safety margin.
Confirm the Pressure Reference
WPCK63 supports:
- gauge pressure;
- absolute pressure;
- sealed-gauge pressure.
The correct reference depends on the control calculation and installation environment.
Confirm Media Compatibility
The diaphragm and all parts contacting the medium must be compatible with:
- natural gas;
- LPG;
- hydrogen-blended gas;
- pipeline moisture;
- condensate;
- odorants;
- oils and other impurities.
Media compatibility should be confirmed before final model selection.
Select the Output Signal
Available standard outputs include:
- 0.2–2.3 V;
- I²C.
Other outputs can be evaluated according to the controller, cable distance, power supply and electromagnetic environment.
Evaluate the Installation Environment
Important considerations include:
- hazardous-area classification;
- IP protection requirement;
- working temperature;
- humidity and condensation;
- vibration;
- corrosion conditions;
- cable and connector protection.
Frequently Asked Questions
What is WPCK63 designed to measure?
WPCK63 is designed for gas and liquid pressure measurement and can be used in gas systems, intelligent water supply, water treatment, pneumatic control and hydraulic control equipment.
What pressure range does WPCK63 support?
The available pressure range extends from −100 kPa to 6 MPa, with multiple standard ranges between 0–10 kPa and 0–6 MPa.
What output signals are available?
The standard outputs are 0.2–2.3 V and I²C. Other signals can be customized according to project requirements.
How fast is the response?
The specified response time is no more than 1 ms.
What is the standard measurement accuracy?
The published standard accuracy is ±0.5% FS.
Can WPCK63 be used outdoors?
WPCK63 has an IP68 protection rating and a working-temperature range of −30°C to 85°C, supporting demanding outdoor and exposed installations when correctly installed.
Does WPCK63 support hazardous-area applications?
The ordering information includes an Ex ia IIC T6 Ga intrinsic-safety option. The final installation must match the approved product configuration and associated safety requirements.
Can the pressure thread be customized?
Yes. The standard thread is M20 × 1.5, while other pressure interfaces can be customized.
Can WPCK63 be integrated into gas flow meters?
Yes. It can provide the real-time pressure input required for temperature and pressure compensation. The complete metering system must still be calibrated and validated according to its applicable metrological requirements.
Conclusion: Reliable Pressure Data for Safer Gas Infrastructure
From transmission pipelines and regional distribution networks to regulator cabinets and gas flow meters, reliable pressure measurement supports every major stage of the gas supply chain.
Các WPCK63 Diffused Silicon Pressure Transmitter combines:
- selectable pressure ranges;
- fast response;
- stainless-steel construction;
- wide temperature compensation;
- IP68 protection;
- intrinsic-safety configuration;
- analogue and digital outputs;
- flexible OEM customization.
By converting pressure changes into accurate and continuously available data, WPCK63 helps gas-equipment manufacturers and network operators improve regulation, warning, metering, remote monitoring and preventive maintenance.
View product specifications, download the manual or request sample support from the WPCK63 product page.
