Russian standards
Pipeline fittings. Packing washers made of paronite and rubber. Dimensions and specifications
Document status: Active
Pipeline fittings. Gate valves. Procedure for strength calculation
Document status: Active
Pipeline fittings. Gland sealings. Leak-tightness norms
Document status: Active
Pipeline fittings. Dimensional tolerances of main elements of wedge-gate valve assemblies
Document status: Active
Pipeline fittings. Fixed joints with cone spacers. Design and dimensions
Document status: Active