WIKA 52310116 Diaphragm Cnx Rf Ptfe Water Pressure Gauge 432.50 4BAR CL150
( Brand: Wika ), ( Manufacturer Part Number: 52310116 ), ( Model: 432.50 ), ( Part Type: Pressure Gauge ), ( Face Diameter: 4 In ), ( Connection Diameter: 2 In ), ( Diaphragm Material: Ptfe ), ( Unit Type: Unit ), ( Mounting Position: Side/bottom Mount ), ( Oil-free: Oil-free ), ( Class: 150 Rf ), ( Maximum Pressure: 4 Bar ), ( Country Of Origin: Germany )
Review WIKA Sealed Diaphragm Pressure Gauge Inch Cnx 4bar Rf Ptfe
The **WIKA 52310116 432.50 Diaphragm Pressure Gauge (CNX, 4 bar, CL150, RF, PTFE)** is a high-performance, industrial-grade pressure measuring instrument designed for demanding applications where accuracy, reliability, and corrosion resistance are paramount. This robust gauge belongs to WIKA s **CNX (Corrosion-Resistant) series**, specifically engineered for use in aggressive or corrosive environments where standard stainless steel or brass components would degrade prematurely. The **432.50** designation indicates a **4-bar (400 kPa) full-scale range**, making it ideal for low-pressure systems such as vacuum applications, pneumatic controls, HVAC systems, or chemical processing where pressures remain within this moderate range. The **CL150** rating signifies a **150-pound ANSI Class 150 flange connection**, ensuring a secure and leak-proof seal when integrated into piping systems, while the **RF (Ring Flange) design** provides a standardized, easy-to-install interface compatible with a wide range of industrial fittings.
One of the standout features of this gauge is its **diaphragm sealing mechanism**, which isolates the internal pressure-sensing elements from the process medium. This design eliminates the risk of contamination or corrosion of the gauge s internal components, even when exposed to highly corrosive fluids, acids, or solvents. The **PTFE (Polytetrafluoroethylene) diaphragm** further enhances its chemical resistance, making it suitable for applications involving aggressive chemicals like hydrochloric acid, sulfuric acid, or organic solvents where traditional elastomers would fail. The PTFE material also exhibits excellent temperature stability, maintaining accuracy across a broad operating range while resisting degradation from thermal cycling.
The gauge s **front-panel design** incorporates a **large, easy-to-read dial** with a **black background and white numerals and markings**, ensuring optimal visibility even in low-light conditions or high-contrast environments. The **needle mechanism** is precision-engineered for smooth operation and minimal hysteresis, providing consistent and repeatable readings. For added durability, the gauge is housed in a **cast aluminum or stainless steel case**, depending on the model variant, which is both impact-resistant and resistant to environmental factors like moisture, dust, and temperature fluctuations. The **IP65 protection rating** ensures reliable performance in mildly wet or dusty conditions, making it suitable for outdoor or semi-exposed installations.
WIKA s **RF flange connection** not only ensures a secure seal but also allows for easy maintenance and replacement without disrupting the entire system. The gauge is **factory-calibrated** to meet stringent accuracy standards, typically within ** 2.5% of full-scale range**, and is backed by WIKA s reputation for precision engineering and long-term reliability. Additionally, the **CNX series** is designed with **zero dead volume**, meaning there is no trapped fluid within the gauge that could contaminate the process or cause measurement inaccuracies. This feature is particularly valuable in applications where purity and cleanliness are critical, such as in pharmaceutical, food and beverage, or semiconductor manufacturing.
For enhanced safety and operational efficiency, the **432.50 CNX gauge** can be equipped with optional accessories such as **remote indicators, electrical transmitters, or alarm contacts**, allowing for integration into automated control systems. Its compact yet sturdy construction makes it versatile for mounting on panels, walls, or directly onto equipment, while the **modular design** allows for easy customization with different flange sizes or connection types if required. Overall, the WIKA 52310116 432.50 diaphragm pressure gauge represents a superior choice for industries requiring a **corrosion-resistant, high-accuracy, and long-lasting** pressure measurement solution in challenging environments.
### **Pros and Cons of buying a Wika 52310116 (432.50 Diaphragm Pressure Gauge, CNX 4 Bar, CL150, PTFE)**
#### **Pros**
1. **High Accuracy and Reliability** Wika is a well-known brand in industrial instrumentation, offering precision-engineered pressure gauges with minimal hysteresis and repeatability. This model is designed for critical applications where accuracy is essential.
2. **Diaphragm Seal Construction** The diaphragm seal (CNX) provides a barrier between the process medium and the gauge mechanism, preventing contamination, corrosion, or leakage. This is ideal for aggressive, hazardous, or corrosive fluids (e.g., chemicals, acids, or gases).
3. **Wide Range Compatibility (4 Bar / 58 PSI)** The 4-bar range makes it suitable for low-pressure applications in industries like HVAC, water treatment, or pneumatic systems. It can also be used in vacuum applications if paired with a compatible diaphragm seal.
4. **CL150 Flange Connection** The Class 150 rating ensures a robust, leak-proof connection, suitable for moderate-pressure systems. This standard is widely accepted in industrial and commercial settings.
5. **PTFE (Polytetrafluoroethylene) Diaphragm** PTFE is chemically inert, resistant to most corrosive substances, and has a wide temperature range (-20 C to 120 C). This makes the gauge durable in harsh environments.
6. **Explosion-Proof and ATEX Compliance** If this model is certified for explosion-proof or ATEX environments (depending on the exact variant), it can be used in hazardous areas like refineries, chemical plants, or mining.
7. **Easy Installation and Maintenance** Diaphragm seals are relatively simple to install and replace, reducing downtime. The gauge itself has a standard mounting design, making it compatible with most piping systems.
8. **Long Lifespan** High-quality materials and construction reduce wear and tear, extending the gauge s operational life, especially in clean or non-abrasive environments.
9. **Versatile Applications** Suitable for industries such as:- Chemical processing
- Water and wastewater treatment
- Food and beverage (if sanitized)
- Pharmaceuticals (with proper material compatibility)
- HVAC and refrigeration systems
10. **Backed by Wika s Warranty and Support** Wika offers reliable customer service, calibration services, and spare parts, ensuring long-term usability.
---
#### **Cons**
1. **Limited Pressure Range** The 4-bar (0.4 MPa) range is relatively low. For higher-pressure applications, a different model would be required, potentially increasing costs.
2. **Potential for Diaphragm Failure** While PTFE is durable, prolonged exposure to extreme temperatures, abrasive particles, or improper maintenance can degrade the diaphragm seal, leading to inaccurate readings or leaks.
3. **Higher Cost Compared to Basic Gauges** Diaphragm seals and PTFE construction add to the price, making this gauge more expensive than standard bourdon tube gauges for non-corrosive applications.
4. **Maintenance Requirements** The diaphragm seal must be inspected periodically for cracks, leaks, or contamination. If the process medium is highly abrasive or contains particulates, the seal may require more frequent replacement.
5. **Limited Temperature Range** The PTFE diaphragm has a maximum operating temperature of 120 C (248 F). For higher temperatures, alternative materials (e.g., Hastelloy or stainless steel seals) may be needed.
6. **Not Ideal for High-Vibration Environments** While diaphragm gauges are generally more stable than bourdon tubes, excessive vibration can still affect accuracy over time.
7. **Calibration Dependency** Like all pressure gauges, this model requires periodic calibration to maintain accuracy. Failure to calibrate may lead to incorrect readings.
8. **Potential for Condensation Issues** In humid or temperature-fluctuating environments, condensation inside the gauge housing could affect performance unless proper drainage is ensured.
9. **Compatibility with Certain Fluids** While PTFE resists most chemicals, some solvents (e.g., strong oxidizers or high-purity gases) may still cause degradation over time.
10. **Lead Time for Replacement Parts** As a specialized gauge, finding replacement diaphragms or seals may take longer than for standard industrial gauges.
---
### **Conclusion**
The **Wika 52310116 (432.50) diaphragm pressure gauge** is an excellent choice for applications requiring **chemical resistance, leak-proof operation, and long-term reliability** in corrosive or hazardous environments. Its **PTFE diaphragm and Class 150 construction** make it ideal for industries where contamination or fluid compatibility is a concern. However, its **limited pressure and temperature range, higher cost, and maintenance needs** may not make it suitable for all applications.
If your system involves **low-pressure, corrosive, or contaminated fluids** and you prioritize **accuracy and durability**, this gauge is a strong investment. For **high-pressure, high-temperature, or non-corrosive applications**, a standard bourdon tube gauge may be more cost-effective.
---
### **Recommendation**
**Buy this gauge if:**- You need a **corrosion-resistant, leak-proof solution** for low-pressure (up to 4 bar) systems.
- Your process involves **aggressive chemicals, gases, or fluids** that would damage standard gauges.
- You operate in an **industry requiring high accuracy and reliability** (e.g., chemical, pharmaceutical, or water treatment).
- You can **maintain and calibrate** the gauge regularly.
**Avoid this gauge if:**- Your application requires **higher pressures (above 4 bar)** or extreme temperatures (above 120 C).
- You are working with **abrasive or highly particulate fluids** that could damage the diaphragm.
- A **simpler, less expensive gauge** (e.g., stainless steel bourdon tube) would suffice for your non-corrosive environment.
- You cannot commit to **periodic maintenance and calibration**.
**Alternative Considerations:**- For **higher pressures**, consider a **Wika diaphragm seal with a higher range** (e.g., 10 bar or 16 bar).
- For **extreme temperatures**, explore **Hastelloy or stainless steel diaphragm seals**.
- For **budget-conscious applications**, a **standard stainless steel gauge** may be adequate if corrosion is not an issue.
Overall, this is a **high-quality, specialized gauge** that justifies its cost for the right applications. Ensure proper installation, regular maintenance, and calibration to maximize its lifespan and performance.
Details:
Factory seal 30 Day money back guarantee Free shipping Low risk for you, Sealed Wika 432.50 Diaphragm Pressure Gauge, 2 cnx, 4bar, CL150 RF, PTFE pn 52310116, Process Connection 4 Dial, Fast US Shipping, 30-day Warranty.
part #: 52310116 prices
- $369.99-$629.00
specifications pressureswitchiz:
- brand: Wika
- mpn: 52310116
- model: 432.50
- part type: Pressure Gauge
- face diameter: 4 In
- connection diameter: 2 In
- diaphragm material: Ptfe
- unit type: Unit
- mounting position: Side/bottom Mount
- oil-free: Oil-free
- class: 150 Rf
- maximum pressure: 4 Bar
- country of origin: Germany
shipping pressureswitchiz:
- carrier: UPS
- service: UPS Ground, UPS 3 Day Select, UPS Next Day Air Saver
- type: Fixed
- class: Standard, Expedited, One-day
- cost: $0.00
- transit: 2-7 Days
payments pressureswitchiz:
- credit card: Diners-club
- wallet: Apple-pay
- other
returns pressureswitchiz:
- method: Money back
- time: 30 Days
- paid by: Seller
- policy: Returns Accepted
offer pressureswitchiz:
- sold: 0
- quantity: 1
- options: Ship-to-home
- best offers: True
- availability: In Stock
- started: February 11, 2026
general pressureswitchiz:
- condition: New
- Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Air Pressure Gauges
seller pressureswitchiz:
- # reviews: 21302
- city: Waunakee, Wisconsin
- rating: 99.7%
Wika 52310116 Is Similar To:
- Wika Air Pneumatic Pressure Gauge Steel 0-10000 Fluid 4 Industrial Hydraulic (35% similar) 3 piece lot. The has a cracked face. Not sure that it will hold fluid or not. The does not have fluid in it. Comes with the following all measure around 4 inches in diameter and have 1/4 male not fitting ends. Heavy duty industrial liquid filled hydraulic pneumatic pressure gauge lot. Not sure that ...(January 22nd, 2015)
- 0-2.5kp Wika Pressure Gauge Diameter Npt Used (39.4% similar) 5KP diameter 1/4 not used this item is and in working condition...(March 8th, 2019)
- 014139653 Wika Pressure Gauge 0-400psi (35% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(January 27th, 2018)
- 073-pi-3300 Wika Pressure Gauge New (35.9% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(December 14th, 2017)
- 073-pi-3301-e Wika Pressure Gauge New (35.3% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(November 10th, 2017)
- 073-pi-3301-w Wika Pressure Gauge New (35.3% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(December 17th, 2017)
- 073-pi-3302-w Wika Pressure Gauge New (35.3% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(December 16th, 2017)
- 073-pi-3304-e Wika Pressure Gauge New (35.3% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(December 16th, 2017)
- 074-pi-4300 Wika Bar Pressure Gauge (37.6% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(November 10th, 2017)
- 074-pi-4302-e Wika Pressure Gauge New (35.3% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(December 14th, 2017)
- Purpose Transmitter 10000 General Wika Pressure (20% similar) ...(January 27th, 2015)
