Spindle extensions
Technical specifications
SPINDLE EXTENSIONS
In many industrial applications the pipelines / fittings must be insulated in order to prevent energy losses and/or to minimize temperature losses of heated media. Spindle Extensions are necessary in order to be able to install insulation around the ball valves. With the attachment of Spindle Extensions, the operating devices (Hand lever, Gearbox, Actuator) can be positioned outside the pipeline insulation. The Spindle Extension ‘Length‘is determined by the thickness of insulation material.
Technical documentation
Benefits
- Extension ‘Unit‘ comprising of Stem and Housing
- Spindle Extension mounted directly onto the existing DIN/ISO connection of the Ball valve
- The gland packing remains in the ball valve around the existing Stem
- ‘Units‘ can be retrofitted in-situ at any time
- DIN/ISO, drives or other attachments can be easily mounted directly onto the Spindle Extension
- Length of the Standard Stem Extension = SG DIN/ISO = 100 mm, other lengths available on request
- Standard Integrated Stem Extension
- This Extension encompasses an elongated ball valve stem (1-piece) / stem housing
- The gland packing is relocated into the upper section of the Stem Extension packing, which moves it to the furthest point from the interior of the pipeline
- This design is predominantly used in low- or high-temperature applications
- The length of Stem Extension depending on the application temperature / customer specification
PERRIN has 2 Standard designs of Spindle Extension for this purpose:
Standard
‘Standard DIN/ISO’ Spindle Extension ‘Unit‘
Integrated Stem Extension