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Model PG43SA-D Diaphragm Pressure Gauge Flush

Brand: WIKA Instruments Ltd.
The model PG43SA-D pressure gauge has been designed specifically for the highest safety requirements in the pharmaceutical and biotechnology industries. 

Through its patented diaphragm element monitoring, the risk of an undetected rupture of the diaphragm is eliminated since a red warning dot is immediately displayed on the dial. If this point on the dial remains white, then the pressure element is intact and cost-intensive maintenance on the measuring point is not required.
Features
  • Integrated diaphragm element monitoring with status display (patent, property right: e.g. DE102016005568)
  • Two barriers for secure separation of the process from the atmosphere
  • Mechanical pressure transmission without transmission fluid
  • Completely autoclavable, suitable for CIP and SIP
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The model PG43SA-D pressure gauge has been designed specifically for the highest safety requirements in the pharmaceutical and biotechnology industries. 

Through its patented diaphragm element monitoring, the risk of an undetected rupture of the diaphragm is eliminated since a red warning dot is immediately displayed on the dial. If this point on the dial remains white, then the pressure element is intact and cost-intensive maintenance on the measuring point is not required.
Features
  • Integrated diaphragm element monitoring with status display (patent, property right: e.g. DE102016005568)
  • Two barriers for secure separation of the process from the atmosphere
  • Mechanical pressure transmission without transmission fluid
  • Completely autoclavable, suitable for CIP and SIP

Specifications

Design

  • Following EN 837-3 and ASME B40.100

Nominal Size in mm

  • 100

Accuracy Class

  • 1.6 per EN 837-3
  • Option: Grade A per ASME B40.100
  • Option: Dual scale
  • The given scale ranges are also available in kPa and MPa.

Vacuum Safety

  • All scale ranges are suitable for the vacuum typical of CIP or SIP cleaning. Positive scale ranges < 6 bar (< 100 psi) are optionally available in a vacuum-tight version (to -1 bar).

Pressure Limitation

  • Steady: Full scale value
  • Fluctuating: 2/3 x full scale value

Permissible Temperature

  • Ambient: -20 ... +60° C
  • Medium: -30 ... +150° C
  • CIP, SIP: 150 C continuously for wetted parts
  • Autoclaving: ≤ 134° C, ≤ 20 minutes
  • Storage, transport: -30 ... +70° C

Temperature Effect

  • When the temperature of the measuring system deviates from the reference temperature (+20° C): max. ±0.5 %/10 K of Full Scale Value

Ingress Protection

  • IP54 per IEC/EN 60529

Process Connection

  • VARIVENT®
  • NEUMO BioControl®
  • SMS threaded connection
  • others on request
  • For exact designs and nominal widths see tables from page 4
  • Milk thread fitting per DIN 11851
  • Aseptic connection per DIN 11864-1 /-2 /-3
  • Stainless steel 1.4435 (316L), UNS S31603, lower mount
  • Clamp Connection per DIN 32676 / ISO 2852 / BS4825 part 3

Pressure Element

  • Diaphragm element, welded to the process connection, NiCr Alloy 2.4668 (Inconel® 718), UNS N07718

Surface Roughness of Wetted Parts

  • Ra ≤ 0.38 μm (15 μin), weld seam: Ra ≤ 0.76 μm (30 μin)
  • Option: Electropolished, Ra ≤ 0.38 μm (15 μin)
  • per ASME BPE SF4, weld seam: Ra ≤ 0.76 μm (30 μin)

Level of Cleanliness of Wetted Parts

  • ASTM G93 level C / ISO 15001 (residual content of non-volatile hydrocarbons ≤ 66 mg/m²)

Movement

  • Stainless steel

Dial

  • Aluminium, white, black lettering

Pointer

  • Aluminium, black

Case

  • Stainless steel 1.4301 (304), electropolished
  • Surface roughness: Ra ≤ 0.76 μm (30 μin), (except for weld seam)

Window

  • Polysulphone

Ring

  • Crimp ring, stainless steel 1.4301 (304)

Typical Applications

  • Hygienic pressure measurement for the pharmaceutical and biotechnology industries
  • Mechanical pressure display on pipelines, fermenters, bioreactors and vessels
  • Pressure display during processing and transport of high-quality and critical media
  • Suitable for the production of active pharmaceutical ingredients (API)
  • For gases, vapour; liquid, pasty, powdery and crystallising media