WIKA Model PGT21 Bourdon tube pressure gauge

$120.00

The WIKA PGT21 intelliGAUGE combines a mechanical Bourdon tube pressure gauge with an electronic output signal, enabling both local pressure reading and remote monitoring through a compatible control system.

Featuring a stainless steel case, a non-contact sensor and measuring ranges from 0–1.6 bar to 0–400 bar, it is suitable for machinery, technical gas systems and renewable energy applications. Selectable outputs include 4–20 mA or 0.5–4.5 V DC, depending on configuration.

🕑 Lead time: 6-8 weeks
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The WIKA PGT21 is an intelliGAUGE pressure gauge with integrated electronic signal output. Its Bourdon tube measures pressure mechanically, while an electronic angle encoder detects pointer movement and converts it into a pressure-proportional output signal.

Key Features

  • Dual function: Analog dial display plus electronic output.
  • Non-contact sensing: Reduces wear and friction in the signal-detection mechanism.
  • Durable construction: Stainless steel case with IP65 ingress protection.
  • Multiple configurations: 50 mm or 63 mm nominal size, with optional case filling for improved resistance to shock and vibration.
  • Output options: 4–20 mA or 0.5–4.5 V DC, depending on the selected version. WIKA

Suitable Applications

  • Industrial machinery: Local pressure indication and remote monitoring.
  • Technical and medical gas systems: Pressure monitoring where the selected configuration meets the application requirements.
  • Renewable energy equipment: Pressure monitoring in relevant systems.
  • Harsh industrial environments: Applications where a robust case and additional vibration resistance are beneficial.

Technical Highlights & Selection Considerations

When selecting a PGT21, check the pressure range, dial size, output signal, process connection and electrical requirements. The standard accuracy class is 2.5, with other options available. A 2 m electrical cable is standard; alternative cable lengths may be available. Confirm the exact configuration against the required operating conditions before ordering.

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FAQ

Q1: Can the PGT21 display pressure without electrical power?
Yes. The mechanical dial indicates pressure independently; electrical power is required for the electronic output.

Q2: What output signals are available?
Depending on the version, the output is 4–20 mA or 0.5–4.5 V DC.

Q3: What is the maximum measuring range?
Standard scale ranges extend up to 0–400 bar (0–6,000 psi), depending on the selected model.

Q4: Can it connect to a PLC?
Yes, provided the PLC input is compatible with the selected output signal and electrical requirements.

Q5: What details should I provide when requesting a replacement?
Provide the complete model or part number, pressure range, dial size, process connection and required output signal.

Design Standards & Mechanical Dimensions

Nominal Size (NS) Ø 50 mm (2 in), Ø 63 mm (2½ in)
Design Standard EN 837-1 (selection and handling per WIKA technical info IN 00.05)
Safety Design Level Safety level “S1” per EN 837-1 (with blow-out device)
Connection Location Lower mount (radial) or Centre back mount (axial)

Materials & Construction

Case Material Stainless steel 1.4301 (304)
Movement Copper alloy
Window Material Polycarbonate (PC)
Mounting Options Panel mounting flange (stainless steel) or Triangular profile bezel ring with mounting bracket (stainless steel)
Special Cleanliness Versions Oil- and grease-free for oxygen applications