PLAST-O-MATIC GYW Double-wall sight glass

Descriptions of PLAST-O-MATIC GYW

• Series GYW flow indicators utilize a double-wall construction and are used on flanged piping systems handling highly corrosive and ultra-pure liquids compatible with Pyrex glass.
• They cannot be used with hydrofluoric acid or sodium hydroxide as they will etch the Pyrex cylinder wall.
• Natural polypropylene ends are standard and are also the least expensive; however PVC, Corzan CPVC, PTFE and Kynar PVDF ends are also available.
• FKM seals are standard.
• These indicators will fit 11/2″ through 8″ smooth face standard companion flanges as well as DIN (European standard) flanges. Two flange O-ring seals are supplied; therefore, other gasket materials are not required.
• An optional fluttering device is also offered.

Technical specifications of PLAST-O-MATIC GYW

• Features:
  • Large 360° viewing area
  • Series GYW have double wall Pyrex and acrylic construction for maximum safety.
  • Full flow design; no corners to collect debris.
  • Wide choice of select plastic materials to assure maximum chemical compatibility.
  • Designed to withstand reasonable external shocks.
  • Little or no maintenance required.
  • No special hardware required for installation; completely assembled and pre-tested.
• Materials of Construction:
  Ends on Series GYW indicators are PVC, Corzan CPVC, natural polypropylene, PTFE or Kynar PVDF.
  On Series GYW indicators, FKM O-rings are standard.
  Standard fasteners are stainless steel on Series GYW flow indicators.
  All inner walls are Pyrex for maximum corrosion resistance, and all outer walls are high impact acrylic which acts as an armored shield against shocks. Acrylic cylinder walls are ultra-violet resistant.

Plast-O-Matic sight glasses will provide visual indication of flow level when properly installed and used within the recommended ranges of pressure, temperature and chemical compatibility. Pyrex will etch when in contact with concentrated solutions of hydrofluoric acid (HF) or caustic soda (HaOH) and is not recommended for these applications. The ultimate determination of material compatibility is previous successful use in the same application.