Overview
The Wika 4217250 is a 632.34 series low pressure gauge designed for accurate monitoring of gaseous and liquid media in industrial and process measurement applications. This 4.5″ dial gauge features a 0–100 inH2O (0–57 oz./sq.in.) pressure range with 2.5% of span accuracy, making it suitable for compressed air, water, and oil systems. The lower mount 1/4″ NPT connection and dual scale marking simplify installation and readability across different measurement units.
Key Features
- Dual Scale Display: Oz./sq.in. and “H2O scales for flexible unit conversion
- Low Pressure Capsule Technology: Optimized for accurate readings in the 15–200 “H2O range
- Brass Wetted Parts: Corrosion-resistant contact surfaces for neutral media including water and compressed air
- Plastic Case: Black fiberglass-reinforced thermoplastic for durability in harsh ambient conditions
- 1/4″ NPT Lower Mount: Standard connection for easy integration into existing systems
- New in Box Condition: Factory-sealed, unused unit ready for immediate deployment
Technical Specifications
- Pressure Range: 0–100 inH2O (0–57 oz./sq.in.)
- Dial Size: 4.5″ (4-1/2″)
- Accuracy Class: 2.5% of span
- Connection: 1/4″ NPT lower mount
- Wetted Material: Brass (316 stainless steel available as option)
- Case Material: Black fiberglass-reinforced thermoplastic
- Pressure Element: Diaphragm capsule (low pressure)
- Scale Type: Dry case with dual scale marking
- Overload Protection: 3x full scale standard
- Part Number: 4217250
- Series: 632.34
Typical Applications
- Compressed air system monitoring in pneumatic control circuits
- Hydraulic fluid pressure measurement in industrial equipment
- Water and liquid pressure indication in HVAC and utility systems
- Process instrumentation for food, beverage, and chemical applications
- Vacuum and filter pressure monitoring in laboratory and environmental engineering
- General industrial measurement in neutral, non-corrosive environments
Compatibility & Replacements
Compatible With
- Standard 1/4″ NPT threaded systems
- Pneumatic circuits and compressed air lines
- Hydraulic fluid systems (water and oil compatible)
- HVAC and process control equipment
- Industrial gauge panels and manifold assemblies
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Wika 4217250 is a direct replacement for other 632.34 series gauges with matching pressure range and NPT connections.
Works With
- Standard mechanical gauge mounting blocks and panel adapters
- Pressure transducer isolation systems
- Manifold and directional control valve assemblies
- Gauge isolation and snubber valve kits












