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Master format 3 part specification
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5. Standard Fittings shall be schedule 40 or standard wall. Other fttings are schedule 80 or light wall as scheduled.
G. Grooved Copper Fittings: Gruvlok Wrot Copper fttings per ASTM B-75 and ANSI B-16.22, alloy C12200.
1. Wrought Copper fttings size 2 inches to 8 inches (51 mm to 203 mm) diameter shall be schedule 10 or standard wall 304 or 316 stainless steel.
Copper fttings shall be 99.9 percent lead free.
2. Couplings and Wrought Copper Fittings shall be NSF, Plumbing Code approved and UL/ULC listed.
H. Di-Electric Insulated Pipe Connections: Di-LOK Figure 7088 or 7089 grooved by grooved or grooved by thread insulating nipples.
1. Shall inhibit the formation of a galvanic cell between dissimilar metals.
2. Housing: Steel tube to comply with ASTM A513.
3. Liner: Polypropylene to ASTM D4140. 300 psig (2 MPa).
4. Operating Temperature -40 degrees F to +230 degrees F (-40 degrees C to 100 degrees C).
5. Size range is 3/4 inch to 6 inches (19 mm to 152 mm) diameter.
I. Branch Outlets: Shall be Gruvlok Clamp-T Styles 7045 and 7046, and Clamp-T Cross Figure 7047, 7048 and 7049 with grooved or threaded outlets.
1. Designated as a bolted-on positive pipe engagement branch outlet. Working pressure to 500 psi (3.5 KPa).
2. Run Sizes 2 inches to 8 inches (51 mm to 203 mm).
3. Branch outlets from 1/2 inch to 3 inches (13 mm to 76 mm) diameter.
J. Outlet Couplings: Shall be Gruvlok Figure 7042 with grooved or threaded outlets. Working pressure shall be 500-psig minimum.
1. Run sizes 1-1/2 inches to 6 inches (38 mm to 152 mm).
2. Branch outlets from 1/2 inch to 2 inches (13 mm to 51 mm) diameter.
K. Plain End Couplings and Fittings: Gruvlok Roughneck coupling Style 7005 and plain-end fttings to match.
1. Size range is 2 inches to 16 inches (51 mm to 406 mm) diameter. Materials conform to ASTM A-536 and A-47. Fittings are cast or forged steel.
Intended for working pressures 300 to 750 psig (2.0 KPa to 5.2 KPa) with bolts fully torque to factory recommend torque requirements on
plain-end or beveled standard wall steel pipe and Gruvlok Plain-End fttings. Fittings match coupling working pressure.
2. Size range is 1 inch to 2-1/2 inches (25 mm to 64 mm) diameter: Plain End "Sock-it" Method: Gruvlok Sock-it ftting series 7100 through 7107.
Material conforms to ASTM A-126 Class A Cast Iron. Working pressures from 175 - 300 psi (1.2 KPa to 2.0 KPa) UL/ULC listed and FM approved.
L. Gaskets for Industrial and Other Piping Systems: Systems with different media products shall be provided with industrial grade gaskets as scheduled.
M. Track Head Bolts and Hex Nuts: Couplings shall be furnished with heat-treated; oval neck track head bolts conforming to ASTM A-183 Grade 2.
Bolts shall meet minimum tensile strength of 110,000 psi (758 KPa). Hex nuts shall be carbon steel conforming to ASTM A-563 Grade A. Bolts
and nuts shall be zinc electroplated.
2.4 GROOVED CONNECTION FLOW CONTROL VALVES
A. Gruvlok Tri-Service Valves - Model FTV-S.
B. Gruvlok Tri-Service Valves - Model FTV-A.
1. Size: As indicated on drawings.
2. Body and Yoke: Ductile iron; comply with ASTM A395 or ASTM A536.
3. Disc: Cast iron, comply with ASTM A126.
4. Stem: Bronze, comply with ASTM B21.
5. Seat-Guide: Bronze, comply with ASTM B584.
6. Disc Guide: Cast iron, comply with ASTM A126.
7. Seat: Bronze.
8. Flanged Gland: Cast iron, comply with ASTM A126.
9. Packing: Graphited, non-asbestos packing.
10. Spring: 302 stainless steel.
11. Stem Guide: Ductile iron; comply with ASTM A395 or ASTM A536.
C. Gruvlok Balancing Valves - Model GBV-S (Soldered).
D. Gruvlok Balancing Valves - Model GBV-T (Threaded).
1. Size: As indicated on drawings.
2. Material: Cast bronze.
3. Type and Description: Y-style globe valve with 4 full-turn adjustment, pressure differential ports on both sides of the valve, with positive
shutoff and micrometer type handwheel adjustment. Provide tamperproof memory stop.
E. Gruvlok Balancing Valves - Model GBV-G (Grooved-End Straight).
F. Gruvlok Balancing Valves - Model GBV-A (Grooved-End Angle).
1. Size: As indicated on drawings.
2. Body: Ductile iron, comply with ASTM A536.
SECTION 15050
(CONT.)
Basic Mechanical Methods and Materials
GL-2.10