We have had very good success for many years with Mueller 2360 / 2361 resilient wedge gate valves. We use the SL x SL version in conjunction with PVC pipe. We have no problem obtaining valves quickly when we need them as they are also the standard valve both we and the surrounding municipality specify for domestic water distribution, so several local wholesalers stock them. Make sure you get the most corrosion resistant fasteners available when you specify them – as a minimum 304 stainless steel, or better yet 316.
Howard Salisbury, P Eng
Mechanical Engineer
Facilities Management Division
University of Saskatchewan
110 Maintenance Road
Saskatoon, SK S7N 5C5
Canada
Telephone: (306) 966-4538
Facsimile: (306) 966-4080
Email: howie.s...@usask.ca