Pricing Change
New pricing for orders of material from this site will come into place shortly. Charges for supply of digital images, digitisation on demand, prints and licensing will be altered.
Upcoming Maintenance
Please be advised that this website will undergo scheduled maintenance on the following dates:
Thursday, 30 January: 11:00 AM - 3:00 PM
During these times, some functionality such as image purchasing may be temporarily unavailable. We apologise for any inconvenience this may cause.
Field Visit
Date 2010
Event ID 881948
Category Recording
Type Field Visit
Permalink http://canmore.org.uk/event/881948
The Sloy Portal valve-House marks the transition between the tunnel which brings water through from Sloy Dam (see separate item) to the steel pressure pipes which conduct water down to the power station. The valve-house contains four large butterfly valves which are oil and air lubricated and provide the surge protection for the station as well as the ability to isolate the pipes as required for routine maintenance. The valve-house also contains a bogie, with winch gear located further up the slop, to haul plant as the road is too steep for large vehicular access. This is a relatively standard component with limited architectural detailing and a degree of later alteration. The addition of the bogie is of some interest, but this is also of largely standard functional design. P L Payne, 1988, 5; E Wood, 2002, 38; J Miller, 2002.
