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SNZ AS/NZS 2638.1

Gate valves for waterworks purposes Part 1: Metal seated

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Organization: SNZ
Publication Date: 27 May 2011
Status: active
Page Count: 40
scope:

This Standard specifies requirements for PN 16 and PN 35 solid gate metal-bodied metalseated gate valves for waterworks purposes, with a maximum operating temperature of 40°C. This Standard is applicable to the following versions:

(a) Valves of nominal sizes DN 80 to DN 900 with inside screw and non-rising spindle design, operated by a removable key, with or without a gearbox, for buried applications.

(b) Valves of nominal size DN 80 to DN 900 with inside screw and non-rising spindle design, operated by a handwheel, with or without a gearbox, for above-ground applications.

(c) Valves of nominal size DN 80 to DN 300 with outside screw and rising spindle design, operated by a handwheel, for above-ground applications where the position of the gate is required to be visible.

(d) Valves of nominal sizes DN 450 to DN 900 with an integral bypass arrangement.

NOTE: The design criteria of the valve and fasteners should be based on a minimum life expectancy of 50 years.

Document History

SNZ AS/NZS 2638.1
May 27, 2011
Gate valves for waterworks purposes Part 1: Metal seated
This Standard specifies requirements for PN 16 and PN 35 solid gate metal-bodied metalseated gate valves for waterworks purposes, with a maximum operating temperature of 40°C. This Standard is...
May 27, 2011
Gate valves for waterworks purposes Part 1: Metal seated
This Standard specifies requirements for PN 16 and PN 35 solid gate metal-bodied metalseated gate valves for waterworks purposes, with a maximum operating temperature of 40°C. This Standard is...

References

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