Overview
The NKS GV50-323-5MK pressure gauge is a precision instrument manufactured by Nagano Keiki, a trusted name in pressure measurement equipment. Designed for demanding hydraulic, pneumatic, pump, and plumbing applications, this gauge combines durability with reliability. The stainless steel construction resists corrosion in harsh environments, while the glycerin-filled mechanism dampens vibration and pulsation from system fluids, ensuring stable, accurate readings.
Key Features
- Glycerin-filled design reduces vibration and pulsation-induced needle flutter for consistent readings
- Stainless steel case and wetted parts provide superior corrosion resistance
- Precision Bourdon tube mechanism for accurate pressure measurement across the full range
- Compact, robust design suitable for panel mounting or manifold integration
- Suitable for use in hydraulics, pneumatics, pumps, and industrial fluid systems
Technical Specifications
The following specifications are typical for the GV50-323-5MK series. Verify exact ratings with your system integrator or application requirements:
- Series: GV50-323 (5MK variant)
- Case Material: Stainless Steel (SS 304)
- Bourdon Tube: Stainless Steel (SS 316)
- Filling: Glycerin
- Connection Type: Stem mount (threaded port)
- Dial Size: Typically 60 mm diameter
- Country of Origin: Japan
- Condition: New in Box
Typical Applications
The NKS GV50-323-5MK is widely used in:
- Hydraulic power systems and manifolds
- Pneumatic test benches and control circuits
- Pump outlet and filter monitoring
- Industrial fluid dispensing and transfer systems
- OEM equipment pressure verification and troubleshooting
- Plumbing and water pressure monitoring
Compatibility & Replacements
Compatible With
- Hydraulic and pneumatic manifolds with standard female ports
- Industrial valves and pump discharge lines
- Standard 1/4″ and 3/8″ BSPT threaded connections (verify specific variant)
- Systems requiring 0–5 MPA / 0–50 kgf/cm² pressure measurement
- Environments with fluid pulsation and vibration damping needs
Replaces / Drop-In Replacement For
The GV50-323-5MK may directly replace other Nagano Keiki GV50-323 variants with the same pressure range and connection. Always verify mounting thread size, pressure rating, and dial scale (metric vs. dual-scale) with technical documentation before substitution.
Works With
- Hydraulic fluid systems (mineral oil, ISO VG 32–68)
- Pneumatic air systems (compressed air, inert gases)
- Water and non-corrosive liquid media
- Standard panel cutouts and manifold porting (40 mm or 50 mm bore, depending on dial size)
- No electrical connections required; purely mechanical operation
