Specifications - State of Delaware

SECTION 211000 - FIRE-SUPPRESSION PIPING: continued
C. Grooved-End, Schedule 40 Standard-Weight Steel Pipe: ASTM A53, ASTM A135, or
ASTM A795, hot-dip galvanized where indicated and with factory- or field-formed, squarecut-grooved
ends.
1. Grooved-Joint Piping Systems:
a. Manufacturers:
(1) Central Sprinkler Corp.
(2) Ductilic, Inc.
(3) National Fittings, Inc.
(4) Victaulic Co. of America.
b. Grooved-End Fittings: UL-listed, ASTM A536, ductile-iron casting with
OD matching steel-pipe OD.
c. Grooved-End-Pipe Couplings: UL 213 and AWWA C606, rigid pattern, unless
otherwise indicated; gasketed fitting matching steel-pipe OD. Include ductile-iron
housing with keys matching steel-pipe and fitting grooves, prelubricated rubber
gasket listed for use with housing, and steel bolts and nuts.
2.04 IN-BUILDING RISER:
A. An in-building service entrance riser shall be installed as indicated on the drawings. Riser
shall be composed of a single extended 90-degree fitting of fabricated 304 stainless steel
tubing, maximum working pressure of 200 psig. The fitting shall have a flanged connection on
the aboveground outlet and a CIPS coupler on the underground inlet. Ames Fire and
Waterworks series IBR or an approved equal.
2.05 DOUBLE-CHECK BACKFLOW-PREVENTION ASSEMBLIES:
A. Basis of Design Product: Subject to compliance with requirements, provide Ames Waterworks
Model Colt 200-BFG or a comparable product by FEBCO, Wilkins or approved equal.
B. UL and FM approved, ASSE 1015 double check valve assembly.
C. Two independent check modules within a single housing, sleeve access port, four test cocks
and two drip tight shutoff valves. Check valves shall be removable and serviceable, without
the use of special tools. The housing shall be constructed of 304 (Schedule 40) stainless steel
pipe with groove end connections. Check valves shall have reversible elastomer discs and in
operation shall produce drip tight closure against the reverse flow of liquid caused by
backpressure or backsiphonage.
D. Size: As indicated on the drawings.
E. Configuration: Designed for vertical, straight through flow.
F. Valves: UL and FM approved grooved butterfly valves on inlet and outlet with tamper
switches.
2.06 DIELECTRIC FITTINGS:
A. Assembly shall be copper alloy, ferrous, and insulating materials with ends matching piping
system.
B. Dielectric Unions: Factory-fabricated assembly, designed for 250-psig minimum working
pressure at 180ºF. Include insulating material that isolates dissimilar materials and ends with
inside threads according to ASME B1.20.1.
C. Dielectric Flanges: Factory-fabricated companion-flange assembly, for 175-psig minimum
working-pressure rating as required for piping system.
D. Dielectric Flange Insulation Kits: Components for field assembly shall include CR or phenolic
gasket, PE or phenolic bolt sleeves, phenolic washers, and steel backing washers.
DEAN211000.DOC 211000-5