SECTION 15121

PIPING EXPANSION COMPENSATION

PART	GENERAL

SECTION INCLUDES

Flexible pipe connectors.

Expansion joints and compensators.

Pipe loops, offsets, and swing joints.

RELATED SECTIONS

Section 15310 - Fire Protection Piping.

Section 15410 - Plumbing Piping.

Section 15510 - Hydronic Piping.

Section 15520 - Steam and Steam Condensate Piping.

Section 15535 - Refrigerant Piping and Specialties.

REFERENCES

MIL-E-17814E - Expansion Joints, Pipe, Slip-Type, Packed.

PERFORMANCE REQUIREMENTS

Provide structural work and equipment required to control expansion and contraction of piping. Verify that anchors, guides, and expansion joints provided, adequately protect system.

Expansion Calculations:

Installation Temperature: [50] [____] degrees F (10 degrees C).

Hot Water Heating: 210 degrees F (99 degrees C).

Domestic Hot Water: 140 degrees F (60 degrees C).

Safety Factory: 30 percent.

SUBMITTALS

Submit under provisions of Section [01300.] [________.]

Product Data:

Flexible Pipe Connectors: Indicate maximum temperature and pressure rating, face-to-face length, live length, hose wall thickness, hose convolutions per foot (meter) and per assembly, fundamental frequency of assembly, braid structure, and total number of wires in braid.

Expansion Joints: Indicate maximum temperature and pressure rating, and maximum expansion compensation.

Samples: Submit [two] [_______] [low pressure compensators] [_______] [3/4] [1] [1 1/4] [______] inch ([20] [25] [30] [______] mm) in size.

Design Data: Indicate selection calculations.

Manufacturer's Installation Instructions: Indicate special procedures, and external controls.

PROJECT RECORD DOCUMENTS

Submit under provisions of Section [01700]. [________].

Record actual locations of flexible pipe connectors, expansion joints, anchors, and guides.

OPERATION AND MAINTENANCE DATA

Submit under provisions of Section [01700]. [________].

Maintenance Data: Include adjustment instructions.

QUALIFICATIONS

Manufacturer: Company specializing in manufacturing the products specified in this section with minimum [three] [_______] years [documented] experience.

Design expansion compensating system under direct supervision of a Professional Engineer experienced in design of this work and licensed [at the place where the project is located] [in the State of [____________]].

DELIVERY, STORAGE, AND HANDLING

Deliver, store, protect and handle products to site under provisions of Section [01600]. [________].

Accept expansion joints on site in factory packing with shipping bars and positioning devices intact. Inspect for damage.

Protect equipment from exposure by leaving factory coverings, pipe end protection, and packaging in place until installation.

WARRANTY

Provide [five] [____] year warranty under provisions of Section [01700.] [________.]

Warranty: Include coverage for leak free performance of packed expansion joints.

EXTRA MATERIALS

Furnish under provisions of Section [01700.] [________.]

Provide [two] [____] 12 ounce (340 gm) containers of packing lubricant and cartridge style grease gun.

PART	PRODUCTS

FLEXIBLE PIPE CONNECTORS

Steel Piping:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Inner Hose: [Carbon Steel] [Stainless Steel] [Bronze].

Exterior Sleeve: [None] [Single braided] [Double braided] [stainless steel] [bronze].

Pressure Rating: [125 psig (862 kPa) WSP and 450 degrees F (232 degrees C)] [200 psig (1380 kPa) WOG and 250 degrees F (121 degrees C)] [[______] psig ([_____] kPa) at 70 degrees F (21 degrees C)].

Joint: [Flanged] [Threaded] [Threaded with Union] [Welded] [As specified for pipe joints].

Size: [Use pipe sized units].

Maximum offset: [3/4 inch (20 mm)] [1 inch (25 mm)] on each side of installed center line.

Copper Piping:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Inner Hose: Bronze

Exterior Sleeve: Braided bronze.

Pressure Rating: [125 psig (862 kPa) WSP and 450 degrees F (232 degrees C)] [200 psig (1380 kPa) WOG and 250 degrees F (121 degrees C)] [[_____] kPa and 70 degrees F (21 degrees C)].

Joint: [Flanged] [Threaded] [Threaded with Union] [Soldered] [As specified for pipe joints].

Size: [Use pipe sized units]

Maximum offset: [3/4 inch (20 mm)] [1 inch (25 mm)] on each side of installed center line.

EXPANSION JOINTS

Stainless Steel Bellows Type:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Pressure Rating: [125 psig (862 kPa) WSP and 400 degrees F (204 degrees C)] [200 psig (1380 kPa) WOG and 250 degrees F (121 degrees C)].

Maximum Compression: [1-3/4 inch (45 mm)] [3 inch (75 mm)].

Maximum Extension: 1/4 inch (6 mm).

Joint: [Flanged] [Threaded] [Welded] [As specified for pipe joints].

Size: [Use pipe sized units]

Application: Steel piping 3 inch (75 mm) and under.

External Ring Controlled Stainless Steel Bellows Type:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Pressure Rating: [125 psig (862 kPa) WSP and 400 degrees F (204 degrees C)] [200 psig (1380 kPa) WOG and 250 degrees F (121 degrees C)] [225 psig (1550 kPa) and 70 degrees F (21 degrees C)].

Maximum Compression: [15/16 inch (24 mm)] [1-1/4 inch (32 mm)].

Maximum Extension: [5/16 inch (8 mm)] [3/8 inch (10 mm)].

Maximum Offset: [1/8 inch (3 mm)] [5/16 inch (8 mm)] [[_____] inch ([____] mm)].

Joint: Flanged

Size: [Use pipe sized units]

Accessories: Internal flow liner.

Application: Steel piping over 3 inch (75 mm).

[Single] [Double] Sphere, [Elbow] [Flexible] Compensator:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Body: [Teflon] [Neoprene and nylon] [_________].

Working Pressure: [_____] psi ([_____] kPa)

Maximum Temperature: [______] degrees F ([______] degrees C).

Maximum Compression: [1/2 inch (13 mm)] [3/4 inch (20 mm)] [1 inch (25 mm)] [1-1/8 inch (28 mm)].

Maximum Elongation: [3/8 inch (10 mm)] [1/2 inch (13 mm)] [5/8 inch (16 mm)] [7/8 inch (22 mm)].

Maximum Offset: [3/8 inch (10 mm)] [1/2 inch (13 mm)] [3/4 inch (20 mm)] [7/8 inch (22 mm)].

Maximum Angular Movement: [15] [30] [45] degrees.

Joint: [Tapped steel flanges] [Galvanized flanges] [Galvanized unions].

Size: [Use pipe sized units]

Accessories: [Control rods] [Control cables].

Application: Steel piping 2 inch (75 mm) and over.

Two-Ply Bronze Bellows Type:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Construction: Bronze with anti-torque device, limit stops, internal guides.

Pressure Rating: [125 psig (862 kPa) WSP and 400 degrees F (204 degrees C)] [200 psi (1380 kPa) WOG and 250 degrees F (121 degrees C)].

Maximum Compression: [1-3/4 inch (45 mm)] [3 inch (75 mm)].

Maximum Extension: 1/4 inch (6 mm).

Joint: [Soldered] [As specified for pipe joints].

Size: [Use pipe sized units]

Application: Copper piping.

Low Pressure Compensator with Two-Ply Bronze Bellows:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Working Pressure: [75 psig (510 kPa)] [80 psig (550 kPa)].

Maximum Temperatures: [250 degrees F (121 degrees C)] [400 degrees F (205 degrees C)].

Maximum Compression: 1/2 inch (12.7 mm).

Maximum Extension: 5/32 inch (4.0 mm).

Joint: Soldered

Size: [Use pipe sized units]

Application: Copper or steel piping 2 inch (50 mm) and under.

Copper with Packed Sliding Sleeve:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Working Pressure: 125 psi (862 kPa).

Maximum Temperature: 250 degrees F (121 degrees C).

Joint: [Flanged] [Threaded] [As specified for pipe joints].

Size: [Use pipe sized units]

Copper or steel piping 2 inches (50 mm) and over.

Application: Copper or steel piping 2 inch (50 mm) and over.

ACCESSORIES

Pipe Alignment Guides:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

Two piece welded steel with enamel paint, bolted, with spider to fit standard pipe, frame with four mounting holes, clearance for minimum 1 inch (25 mm) thick insulation, minimum 3 inch (75 mm) travel.

Swivel Joints:

Manufacturers:

[_____________________________] Model [________].

[_____________________________] Model [________].

[_____________________________] Model [________].

[Fabricated steel] [Bronze] [Ductile Iron] [Cast steel] [____________] body, double ball bearing race, field lubricated, with [rubber (Buna-N)] [_________] o-ring seals.

PART	EXECUTION

INSTALLATION

Install in accordance with manufacturer's instructions.

Construct spool pieces to exact size of flexible connection for future insertion.

Install flexible pipe connectors on pipes connected to equipment supported by vibration isolation. Provide line size flexible connectors.

Install flexible connectors at right angles to displacement. Install one end immediately adjacent to isolated equipment and anchor other end. Install in horizontal plane unless indicated otherwise.

Rigidly anchor pipe to building structure where necessary. Provide pipe guides so movement is directed along axis of pipe only. Erect piping such that strain and weight is not on cast connections or apparatus.

Provide support and equipment required to control expansion and contraction of piping. Provide loops, pipe offsets, and swing joints, or expansion joints where [required] [indicated].

Provide victaulic piping with minimum one joint per (inch) (25 mm) pipe diameter instead of flexible connector supported by vibration isolation. Victaulic piping need not be anchored.

Provide expansion loops as indicated on drawings.

MANUFACTURER'S FIELD SERVICES

Prepare and start systems under provisions of Section [01400]. [________].

Provide inspection services by flexible pipe manufacturer's representative for final installing and certify installation is in accordance with manufacturer's recommendations and connectors are performing satisfactorily.

END OF SECTION