Norm

ISO 7259:1988 en

Predominantly key-operated cast iron gate valves for underground use

48,19

Over deze norm

Status Definitief
Aantal pagina's 10
Gepubliceerd op 29-12-1988
Taal Engels
Specifies requirements for two types of predominantly key-operated valves for underground use with flanges or spigot ends or socket ends. The two types shall be specified as type A or type B and shall include the following features: inside screw stem; wedge or parallel obturator; metallic or elastomeric obturator seatings; metallic or elastomeric body seatings; ferrous metal and/or copper alloy trims; T-key operation; ring key and bar operation. Type A valves are for T-key operation; type B valves are for ring key and bar operation.

Details

ICS-code 23.060.30
Nederlandse titel Predominantly key-operated cast iron gate valves for underground use
Engelse titel Predominantly key-operated cast iron gate valves for underground use

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