The Epoxy systems meet the requirements for FDA. All pipe and fittings (Tees, Elbows, Laterals, Reducers, and Crosses) shall be manufactured with a double Nexus (synthetic vei)l reinforced Epoxy internal corrosion barrier, an Epoxy filament wound fiberglass reinforced cage, a standard Nexus reinforced external corrosion/UV resistant barrier, and an external intumescent fire proof coating. 

2.0 MATERIAL
2.1 Raw materials will meet or exceed specifications for Epoxy resin systems and fiberglass materials.

2.2 The resin, reinforcement, pigments, fillers and other materials, when combined as a composite structure shall produce a pipe that willl meet or exceed the requirements of the classification system listed in ASTM D-2310.

3.0 PIPE CONSTRUCTION
3.1 The pipe shall consist of three specific layers and a final fire protective coating. The double synthetic veil reinforced internal corrosion barrier, the filament wound reinforcement (cage), and the synthetic veil reinforced external corrosion/ UV barrier. Finally, the pipe is encapsulated by an intumescent coating for fire resistance. The structural wall and exterior shall be manufactured in accordance with the IMO Resolution A.753(18) and certified by DNV (Det Norske veritas) and ABS (American Bureau of Shipping). All sizes require a minimum rating of 1 Full Vacuum for Marine and Off-Shore use. This material shall be post-cured for 5 hours at 275° F to form an integral structure.

3.1a The corrosion resistant inner liner shall consist of a minimum two layers of Nexus veil saturated with premium Epoxy resin (Shell 828, Ciba 6010, D.E.R. 331), aromatic amine (MPDA) cured. The Schedule 90 pipe shall have a 60-mil minimum internal corrosion barrier, resin rich, and this layer shall be a maximum of 90% resin and 10% reinforcement to increase impact and chemical resistance.

3.1b The glass reinforcement, or cage, shall be continuous glass roving wound at an angle 54 3/4 degrees to the longitudinal axis of the pipe, using aromatic amine cured premium Epoxy resin, and shall be not less than 65% glass for maximum strength and flexibility.

Revised 8/22/00

3.1d The external corrosion barrier shall be encpasulated in an intumescent fire protective coating to meet the L3 Fire Endurance Rating according to IMO Resolution A.753(18).

4.0 PIPE FITTINGS
4.1 All fittings such as elbows, laterals, tees and reducers shall be equal or superior in strength to the adjacent pipe section and shall have the same internal diameter as the pipe. Fittings shall be filament wound, and have the same three layer construction as the pipe, i.e. 60-mil double Nexus veil reinforced corrosion resistant barrier, filament wound and glass reinforced structural layer, and external synthetic veil reinforced corrosion barrier 20 to 30-mils thick, with UV light inhibitors, and an intumescent fire proof coating. Fitting construction shall meet the same applicable standards as the pipe (IMO, DNV, ABS). All fittings shall be oven post-cured 5 hours at 275° F for optimum strength and chemical resistance and to form an integral structure.

4.2 Elbow Fittings shall be manufactured in standard configurations with straight socket ends designed for the controlled O.D. of the pipe.

4.3 Reducing Fittings shall be manufactured as concentric or eccentric gradual changes in diameter to minimally affect the fluid flow, and with straight socket ends.

5.0 CONNECTIONS
5.1 Prefabrication -When requested by the customer, the manufacturer shall prefabricate into shippable sub-assemblies to minimize the use of field-fabricated connections.

5.2 Straight Cement Socket joints - Shall be used with both pipe to fitting connections as well as pipe to pipe connections using a coupling. Tapering or machining of the pipe shall not be allowed. Field fabricated joints will be coated with intumescent fire proof coating after the adhesive has cured.

5.3 Flange connections - Shall be used to join the fiberglass pipe and fittings to other equipment. Flanges shall be designed for the operating pressure per the line requirements as a minimum. Flange dimensions shall conform to ANSI B 16.5 150 lb. drilling. Where flanges connect to raised face surfaces (valves, etc.), a spacer ring shall be added to achieve a flat mating surface.

5.4 Gasket material - For flanged connections this shall be an elastomer which is compatible with the service. Gasket material shall be 1/8 inch thick with a hardness of 50 to 70 durometer on the Shore A scale.

7.0 VACUUM SERVICE 
7.1 In sizes through 20" diameter the pipe, fittings and flanges shall have a minimum pressure rating of 150 psi and a minimum external pressure (or vacuum) rating of 14.5 psi (1 Bar FULL VACUUM) at 235° F.

8.0 RECOMMENDED INSTALLATION PRACTICE
8.1Pipe hangers and spacing - Hangers shall be band type hangers contacting a minimum of 120° of the pipe surface, and with a minimum width of 1" or pipe diameter divided by 6, whichever is greater.

8.2Expansion - The manufacturer shall specify thermal loads, expansion and contraction, and shall convey this design informaiton to the end user or customer for cinsideration in the proper design of the piping system.

8.3 Bolts, Nuts, and Washers - Bolts, nuts, and washers shall be furnished by the customer. Metal washers shall be used under all nut and bolt heads. All nuts, bolts and washers shall be of materials suitable for use in the exterior environment.

8.4 Fabrication procedures and certification of fabricators shall be in accordance with Conley Fabrication Manual, Fabrication Seminar, and Sign-off Check list.

9.0 QUALITY ASSURANCE AND INSPECTION
9.1 Manufacturer shall be certified and registered to ISO 9001.

9.2 Pipe and fittings shall be inspected and measured at each stage of manufacture, i.e. liner, reinforcement and external corrosion barrier. For optimum strength and corrosion resistance, all pipe and fittings shall be post-cured for 5 hours at 275° F. Reports of these procedures shall be made available to customer upon request.