Sigma Engineering LLC
We are the proud supplier for Standard Refrigeration
replacement parts for legacy and newly built products.
Discover WHY Sigma is the Right Choice
Sigma Engineering exists due to their overwhelming service. Yes they have incredible inventory, outstanding quality and yes they have great pricing, but it’s more than that.
Exclusively sold thru over 2,500 Refrigeration Wholesalers, Sigma enjoys the status of reputation and loyalty with every customer that comes in contact with them.
OEM Replacement Parts & Other Products
Sigma Engineering is the exclusive supplier for Standard Refrigeration Replacement parts for new and legacy Chiller Barrels and Water Cooled Condenser Barrels. This includes all Gaskets, Valves, Endplates, Zinc Anodes and more. Standard Refrigeration is still producing quality Shell and Tube Heat Exchangers and can still be contacted directly for complete units for new and replacement applications.
Our Products
Sigma Engineering remains the leader in specialty replacement parts for
Chillers and Refrigeration Systems including Supermarket systems.
Product range from Rotolock Valves and Adapters to Electronic Liquid
Level controls and Accessories.
ZN122 PLUG ANODE
ZN3332 PLUG ANODE
ZN122 PLUG ANODE
