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TS EN 1515-2 Flanges and connections-Bolting-Part 2: Classification of bolt materials for steel flanges, pn short notation

TS EN 13789 Industrial valves - Cast iron belted valves

TS 9809 Valves - Cast iron ball valves - For combustible gases

TS EN 161 + A3 Automatic shut-off valves for gas burners and gas appliances

TSE K 534 DISTRIBUTION PIPE, SELF-FITTING COLLECTORS - USED IN HEATING SYSTEMS

TS EN 558 Industrial valves - Face-to-center and center-to-face dimensions of metal valves used in flanged pipe systems - Valves with PN and Class symbol

TS EN 13789 Industrial valves - Cast-iron valves

TS EN 13828 Valves - For drinking water installation in buildings - Hand operated - Copper alloy and stainless steel ball valves - Tests and specifications

TS EN ISO 21787 Industrial valves-Belly valves-Thermoplastic material