Shand & Jurs 97187 View Port Inspection Cover

For digester operators, tank engineers, and wastewater maintenance teams, the Shand & Jurs Biogas 97187 View Port Inspection Cover enables direct visual inspection of vessel interiors without opening the system or breaking containment.

Unlike routine inspection practices that require venting gas, opening a hatch, and issuing confined-space permits, the 97187 uses a bolted cover compressing a gasketed tempered-glass window to hold a gas-tight seal while operators verify liquid level, mixing, foam condition, or internal equipment.

Internal and external wiper options, an optional cleaning sprayer, and optional illuminators keep the viewing surface clear during operation, allowing observation without disturbing process pressure or interrupting production.

Available in 8″–24″ ANSI flanged connections in aluminum or stainless construction, the 97187 installs as a permanent inspection point on digesters, gas holders, and process vessels where routine internal verification is required.

Features

Tempered safety glass allows direct visual inspection of internal conditions without venting the vessel, opening a hatch, or breaking gas containment during routine checks.

Bolted cover compresses the gasketed glass assembly to hold a gas-tight seal during operation, protecting the window and maintaining containment under process pressure.

Gasket and glass assembly can be replaced in service, restoring sealing integrity after inspection or damage without replacing the entire cover housing.

Optional internal and external wipers keep the viewing surface clear of condensation, foam residue, and splash during operation, preserving visibility on wet biogas duty.

Integrated sprayer rinses the viewing area during operation, maintaining clear visual access in foam-heavy or solids-laden vessels without opening the cover.

Available illuminators provide internal lighting through the viewport for inspection of dark vessels, supporting verification at any time of day without entry.

Applications

Digesters: Provides a permanent observation point on anaerobic digesters for visual verification of mixing, foam, and liquid level without venting or opening the tank.
Storage Tanks: Installed as a sealed inspection point on low-pressure storage tanks, allowing operators to confirm internal conditions while maintaining full containment and pressure.
Gas Holders: Enables visual confirmation of gas holder operation and internal component condition without interrupting gas storage or discharging the contained volume to atmosphere.
Mixing Tanks: Supports visual verification of agitation, foam, and process conditions in mixing vessels, eliminating routine tank openings and the permits they require.
Process Vessels: Serves as a permanent viewport on process vessels where internal conditions must be verified regularly without venting contents or issuing confined-space procedures.
Wet Wells: Provides inspection access on wet wells and pump pits, supporting visual condition checks in wastewater service without exposing operators to confined-space hazards.

Specifications

Parameter

Specification

Function

Sealed visual inspection port

Mounting

Flanged / nozzle-mounted

Flange Sizes

8″ – 24″ ANSI

Viewing Element

Tempered safety glass

Seal Type

Gasketed compression seal

Wipers

Internal, External, or Both

Body Material

Aluminum or Stainless Steel

Window Retainer Hardware

Stainless Steel or 316 Stainless Steel Quick Release

Gasket Material

NBR or equivalent

Hood

Aluminum or Stainless Steel

Optional Accessories

Internal/external wipers, sprayer system, illuminators

2026 COST ESTIMATE

Contact Support

If you have questions not covered here, please contact the Cognesense support team for assistance.

What does the 97187 allow operators to do without opening the tank?

−

The 97187 enables visual verification of liquid level, mixing, foam condition, and internal equipment while the vessel remains pressurized and sealed. This eliminates venting, hatch opening, and confined-space entry procedures for routine inspection.

How is the window kept clear during operation?

Optional internal and external wipers remove condensation and residue from the viewing surface, and an optional integrated sprayer rinses the area during operation. Illuminators are available as an additional option for dark vessels.

What sizes and materials are available?

The 97187 is available in 8″ through 24″ ANSI flanged connections. Body and hood are aluminum or stainless steel, window retainers are stainless steel or 316 stainless quick-release, and gaskets are NBR or equivalent for wet gas and wastewater service.

Can the seal be restored after service?

Yes. The gasketed glass assembly is replaceable. Sealing integrity can be restored during maintenance without replacing the entire cover, keeping long-term ownership cost low across inspection cycles.

Is the 97187 suitable for wet gas and wastewater environments?

Yes. Aluminum and stainless construction, NBR gaskets, and a flush internal profile minimize buildup and resist corrosion in wet gas, digester, and wastewater service typical of biogas and municipal treatment plants.

Does using the viewport require interrupting operation?

No. The bolted cover and compressed gasketed window hold containment while observation occurs. Process pressure, level, and atmosphere are not disturbed, so inspection fits into routine operator rounds rather than planned shutdowns.

Summary

With over a century of tank-safety heritage inside Cognesense, the Shand & Jurs Biogas 97187 View Port Inspection Cover is chosen where routine internal verification must happen without opening the vessel. Its bolted compression cover, tempered glass window, and optional wipers, sprayer, and illuminators hold containment while operators see inside. Installed as a permanent inspection point on digesters, gas holders, and process vessels, it is trusted wherever you need to measure, monitor, and protect what matters most.

97187 View Port Inspection Cover