Sight Glasses and Gauges

CRP manufactures a wide range of tubular Sight Glasses and stocks and supplies the Atomac Bulls Eye Sight Glass.

Tubular Sight Glasses

Our tubular Sight Glasses are constructed using a robust tie rod cage and heavy wall borosilicate glass. Their design offers a 360o viewing area and they are available with both carbon and stainless steel flanges either unlined or PFA lined for corrosive duties.
The CTSG is our stocked “off the shelf” Sight Glass with an industry standard face to face length.  
The DTSG Sight Glasses are specially manufactured to suit the customer’s requirement typically up to 1500mm maximum.   DTSG Sight Glass

Bulls Eye Sight Glasses

The Atomac ASG bulls eye Sight Glass has a PFA lined ductile iron flanged body with a pair of borosilicate glass windows. The ASG is suitable for use in processes up 19 bar g. They are available in the common 2 flange inline design and also 3 and 4 way tee and cross types. As part of the Atomac range of PFA lined ball valves, strainers and check valves quality and product life is assured.

  Atomac Bulls Eye Sight Glass

Combined Sight Glass / Check Valves

Both the tubular and bulls eye Sight Glasses are available with fully integrated check valves combining 2 products in one.

The Bulls Eye is available with a ball check – The ARV2/SG.

Atomac ARV2 / SG

The tubular sight glass with integral poppet check valve – The SPCV.

The tubular sight glass with hollow PTFE floating ball acting as a check valve – The BFSG.

Level Gauges

We manufacture our own range of tank level indicators our LGSG. These exhibit all PFA wetted parts for near universal process compatibility supported within a stainless steel carrying tube with machined viewing slots giving excellent mechanical strength.

LGSG Level Gauge


Azeotropic Separation Sight Glasses

CRP manufacture large diameter 12”NB + sightglasses with multiple small bore flange inlets / outlets to see unhindered viewing of azeotropic seperations.

Azeotropic Seperation Sight Glasses


Contact Details

Corrosion Resistant Products Ltd
Todmorden Road
OL15 9EG

Phone: +44(0)1706 756400
Fax: +44(0)1706 379567