Description
HAWK 21L and 21B series bourdon tube stainless steel case pressure gauges are designed to fulfill the requirements of high quality from various industries. It is offered with waterproof and corrosion resistant case. Widely pressure ranges can be chosen. It is suitable to measure pressure of air , oil, gas, water or any other
medium which does not clog the pressure port or corrode copper alloy. It’s easy to use and install, 2 1/2″, 3 1/2″ smaller size gauges are used whenever space limitations exist.
Typical Applications
- Petrochemical and chemical processing
- Medical and pharmaceutical industry
- Industrial OEM equipment
- Food and beverage processing
- Hydraulic monitoring systems
- Power generating stations
- Offshore oil platforms
- Pneumatic systems
- Level measurement
- Pulp and paper mills
Specifications
OPERATING
Steady: 75%*full scale value
Pulsation: 50%*full scale value
Sudden: 100%*full scale value
The appropriate operating range falls in the middle half of the gauge (25% to 75% of full scale). If you choose the unsuitable range, the fatigue of bourdon tube may be resulted. HAWK Supplies a wide selection of range from vacuum to 150000 PSI including compound range.
TEMPERATURE LIMIT
Ambient: -25 to 60°C (Dry Gauge).
Media: max 60°C-Brass, 125°C-Monel.
TEMPERATURE EFFECT
Accuracy of measurement will be effected by the temperature change. This inaccuracy may as high as ±0.3% for 12°C temperature change.
DIAL SIZE
2 1/2″(63mm), 3 1/2″(90mm).
CASE&RING
Stainless Steel 304, polished bayonet ring.
SOCKET
Brass or Monel K400.
MOVEMENT
Brass, Stainless steel movement with overload and underload stops – Standard, silicone dampened movement on request.
BOURDON TUBE
Brass or Monel K50.
30″Hg(Vac) to 900PSI…C-type.
1000 to 15000PSI…Helical type.
WINDOW
Tempered safety – Standard.
Polycarbonate – Optional.
Several Kinds of Window
POINTER
Anodized aluminum with black finish.
ACCURACY
±2-1-2% of span (Grade 1A to ASME B40.1).
ZERO-ADJUSTMENT
Micro-adjustable pointer.
SCALE
PSI, kPa, Mpa, bar, kg/cm2, inHg, cmHg, torr, mmHg (single or dual scale).
CONNECTION
1/4″ or 1/8″ NPT standard, JIS, DIN, M14*1.0 available.
MOUNTING
Stem or Flushing (U-clamp/Flange) mounting.
WEATHERPROOF
NEMA 4X/IP65 enclosure.
