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Master format 3 part specification
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a. Sizes 2 inches through 20 inches (51 mm through 508 mm) are rated at 300 psig (2.0 MPa).
b. Size 24 inches (610 mm) is rated at 250 psig (1.72 MPa).
4. Figure 7013: 2 inches through 12 inches (51 mm through 305 mm) available for ANSI class 250 or 300 lb (113 kg or 136 kg) bolt pattern and is
rated at 750 psig (5 MPa).
G. Grooved Fittings for Steel Piping Systems - Shall be Gruvlok cast ductile, malleable, forged steel, and/or segmental welded steel fttings.
1. Sizes 1 inches to 30 inches (25 mm to 762 mm) diameter:
a. Cast ductile conforms to ASTM A-536 or ASTM A-47.
b. Forged steel conforms to ASTM A-234.
c. Segmental welded conforms to ASTM A-53.
2. Fittings shall be coated with an Alkyd-enamel non-toxic paint.
3. Zinc electroplated fttings conform to ASTM B-633.
4. Hot Dip Galvanized fttings conform to ASTM A-153.
5. Standard Fittings shall be schedule 40 or standard wall. Other fttings are schedule 80 or lightwall as scheduled.
H. 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.
I. 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.
J. 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.
K. 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.
L. 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.
M. Gaskets for Industrial and Other Piping Systems: Gaskets with different media products shall be provided with industrial grade gaskets as scheduled.
N. 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.
2.3 GROOVED CONNECTION FLOW CONTROL VALVES
A. Grooved Butterfy Valve: Gruvlok Series 7700 and Series 8000GR grooved butterfy valves. Service usage for Balancing and On/Off service.
1. Series 7700: Butterfy Valve - Sizes 2 inches to 12 inches (51 mm to 305 mm). Listed in accordance with MSS SP-67. Bubble tight at 300 psig
(2.1 MPa). Body - Ductile Iron, available with standard nylon body coating or epoxy body coated. Disc- Ductile Iron with EPDM encapsulation.
Operating temperature -40 degrees F to + 230 degrees F (-40 degrees C to 110 degrees C). (Optional - Nitrile Disc encapsulation) Operating
temperature up to +180 degrees F (82 degrees C) and Grade O Fluoroelastomer. Operating Temperature up to 230 degrees F (110 degrees C).
Trim - 416 s/s. Bronze upper and lower shaft bearings conforming to ASTM B438, Grade 1 - type 1 for sizes 8 inches to 12 inches (203 mm to
305 mm) only. Low Torque. Rated for "Dead-end" service.
2. Disc-to-stem attachment shall be made with splined stainless steel stems attached to disc by cold fusion process.
a. Disc/stem seals shall be triple redundant as follows: 1. Disc-to-valve body; 2. EPDM seat-to-stem; 3. EPDMO-rings in upper and lower shaft.
3. Series 8000GR: Butterfy Valve - Size range 14 inches to 24 inches (356 mm to 610 mm). Bubble tight to 200-psig (1.4 MPa). Body: Cast Iron
to ASTM A-126 CL.B. Disc- Nickel-Plated Ductile, Aluminum Bronze or Stainless Steel. Liner- Standard EPDM or Nitrile. Operating temperature
same as 7700 series. Bearings: Upper and lower bearings Tefon reinforced. Trim - 316 and 416 s/s. Low Torque. Rated for "Dead-end" service.
SECTION 15600 (CONT.)
Pipes, Valves and Fittings for HVAC Heating and Cooling Systems
GL-2.10