Circular Sight Glass Fittings. Metaglas Sight Glass Metaglas sight glass has unmatched strength and durability 25 to 200 mm viewing diameter 300°C operating temperature 100 bar operating pressure, higher available on request Metaglas Sight Glass DIN 28120 Circular Sight Glass Fittings Circular pad flange for welding into or onto vessel wall 80 to 225 mm viewing diameter 280°C operating temperature, higher available on request 16 bar operating pressure DIN 28120 Circular Sight Glass Fittings MV-ME and MV-SLM Combined Sight / Light Glass Fittings Stainless Steel ME or Aluminium SLM Light Fittings 65 to 125 mm viewing diameters 24 V operating voltage 20 to 100 W bulb wattage MV-ME and MV-SLM Combined Sight / Light Glass Fittings MV Screwed Sight Glass Fittings DIN 11851 weld neck for welding into or onto vessel wall 50 to 150 mm viewing diameter 200°C operating temperature, higher available on request 6 bar operating pressure, higher available on request MV Screwed Sight Glass Fittings Visilume Standard Circular Sight Glass Fittings Circular pad flange for welding into or onto vessel wall 50 to 300 mm viewing diameter 280°C operating temperature, higher available on request 5 bar operating pressure Visilume Standard Circular Sight Glass Fittings Circular Sight Glass Fittings for Non-Pressurised Vessels Circular pad flange for welding into or onto vessel wall Lightweight with low profile and counter sunk screws 80 to 225 mm viewing diameter 280°C operating temperature, higher available on request Circular Sight Glass Fittings for Non-Pressurised Vessels Circular Sight Glass with Light Fitting Select a sight glass then choose a light fitting to match Wide range of sizes, supply voltages and bulb wattages Light fittings Explosion proof light fittings Circular Sight Glass with Light Fitting SKS and ESKS Hinged Sight / Light Glass Fittings Quick opening, ideal for sampling or adding product 135 and 205 mm viewing diameter 200°C operating temperature 1 bar operating pressure SKS and ESKS Hinged Sight / Light Glass Fittings DIN 28121 Circular Sight Glass Fittings Circular flange fitting for bolting straight onto a flange 50 to 150 mm viewing diameter 200°C operating temperature, higher available on request 25 bar operating pressure DIN 28121 Circular Sight Glass Fittings