Alchem Process Ltd
Unit 4 Church Road Ind Estate,
Gorslas, Llanelli, Carmarthenshire,
SA14 7NN.
Tel: 00 44 (0) 1269 841 324

Union Sight Glasses

Tank Equipment - Sight Glasses, Vent Cowls & Level Gauges

Union Sight Glasses

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Based on the DIN 11851 screwed hygienic union the unit is suitable for welding onto the vessel wall, the lid of a manway or dished head.


Supplied complete with the special DIN 11851 hygienic male base, with glass disc, gaskets and slotted outer nut


Size range from DN50 to DN150


View glass diameter from Ø50 to 150mm


Standard operating temperatures of up to 200°C (higher available on request)


Standard operating pressures of up to 6 bar (higher available on request)


Materials: The males can be supplied in either 304 or 316L stainless steel as standard with specials also available


We also build custom made assemblies to suit your specific requirements and outside the standard range.




Sightglasses for Sanitary Applications 
Sightglasses and lights for sanitary fittings are also offered for Clamp and NA-Connect