AMERICAN provides tapping valves for sizes 4"-48", rated at 250 psig working pressure.
The Series 2500 tapping valve is furnished in a flange x mechanical joint configuration and includes all of the standard features found on the Series 2500 gate valve. The flange is provided with an alignment ring, which is designed to fit into a recess on the AMERICAN-manufactured tapping sleeve. This fit assures a proper alignment between the sleeve and valve, which in turn ensures proper passage of the cutter during the tapping procedure.
The Series 2500 tapping valve is made of ductile iron. The opening is larger than nominal diameter to accept full-size shell cutters through 48".
Ductile Iron Construction
250 psig ANSI/AWWA pressure rating
Certified to NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372
Triple O-Ring stem seals
Epoxy coating inside and out in accordance with ANSI/AWWA C550
Thrust washers and adjustable packing type stem seals
Lifting Devices
Zero leakage
Dual sealing body to bonnet gaskets
EPDM Encapsulated Ductile Iron Wedge With Polymer Guide Covers
Optional gearing (Standard on 30" and larger)
Tapping valves shall be resilient seat type with bodies and bonnets made of ductile iron for 250 psig working pressure.
The valve shall be furnished with a flange-end connection on one end and a mechanical joint end on the opposite end. The flange shall be furnished with an alignment ring conforming to MSS SP-60 to help ensure true alignment of the valve and tapping sleeve. The mechanical joint end shall be furnished in accordance with ANSI/AWWA C153/A21.53 and MSS SP-113.
All tapping valves shall include a minimum 3/8" NPT pipe plug on the bonnet of the valve body to aid in the field testing of the valve.
The wedge shall be symmetrical and seal equally well with flow in either direction. Wedge guides shall be equipped with male guide covers. The use of auxiliary bronze rollers and plow-style shoes are not acceptable. The wedge nut shall be independent of the wedge and held in place on three sides by the wedge to prevent possible misalignment. Valves shall be Certified to NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372.
All interior and exterior ferrous surfaces shall be protected against corrosion by fusion-bonded epoxy coating. Coating shall be applied prior to assembly to assure coverage of all exposed areas, including bolt holes. All valves 16" and larger shall be supplied with a spur gear for reduction of torque.
Tapping valve shall be AMERICAN 4"-48" Series 2500 ductile iron 250 psig rating (accepts full-size shell cutter).
