33 12 16.26 - 001-A - Response AAN-ANR Butterfly Valves - Garney ...

Colorado River Municipal Water District
Ward County Water Supply Expansion Project
Submittal 33 12 16.26 – 001-A – Butterfly Valves
Garney Review Comments
1. This submittal includes information on the Butterfly Valves, Gearboxes, and
Actuators.
2. All of the valves in this submittal will be provided with a mechanically fastened,
segmented seat with the exception of OPS-PL-BFV1, OPS-PL-BFV2, OPS-PL-
BFV3, OPS-PL-BFV4, and OPS-PL-BFV5.
3. The following valves will be shipped prepped for long term storage; OPS-YP1-
BFV, OPS-P1-BFV2, OPS-P2-BFV2, TPS-P1-BFV2, TPS-P2-BFV2, TPS-P3-
BFV2, TPS-P4-BFV2, WPS-P1-BFV1, WPS-P2-BFV1, WPS-P3-BFV1, TP-
BFV2, TP-BFV3, and TP-BFV4.
4. OPS-YP1-BFV will be provided as a spare part to the owner.
5. Per the discussion at the Pre-Submittal Meeting 4 Rotork Remote Setting Tools
will be provided to the owner with these valves.
6. A table showing number of turns for each of the different sizes of valves will be
included in the operation and maintenance manual.
7. Henry Pratt has over 10 years of successful experience manufacturing this type of
valve in the sizes included in this submittal.
8. Testing and conformance documentation will be provided prior to valve shipment
and will be included in the Operation & Maintenance manual for these valves.
9. The O&M Manual for the Segmented Seat Valves will be included in the O&M
Manual.
10. Concerning the limit switches for the 48” Butterfly Valve. Henry Pratt has had
discussions with Auma concerning this issue and are proposing the switches as
shown in the catalog beginning on page 214 of this manual. Auma has had a lot
of success with this arrangement and they do not offer individual lever type limit
Switches as discussed during the pre-submittal meeting. As these gear
assemblies require the bevel etc. Pratt cannot modify the wormgear to add Limit
Switches as this would void Auma’s product warranty. Having the self contained
arrangement. This arrangement does offer some substantial benefits, see pages
234 and 235 of this submittal, enclosure type ( IP 68) and lubricated for life.