Specification for Fiberglass Reinforced Plastic P-Series Strainers

1) SCOPE

THIS SPECIFICATION COVERS REQUIREMENTS FOR FRP STRAINERS. Y TYPE, BASKET TYPE AND DUPLEX TYPES ARE INTENDED FOR USE IN CHEMICAL PIPING SYSTEMS WHERE MAXIMUM RESISTANCE TO CORROSION, PRESSURE AND TEMPERATURE IS REQUIRED.

2) STRAINER DESIGN

2.1 Strainer shall be flanged basket (or Y) type.

2.2 Body configuration shall be 1. in-line, 2. offset, 3. angled offset, 4. boot. (select one)

2.3 Basket shall be PVDF, Perforations 1/8” on 3/16” centers (or as required)

2.4 Minimum area ratio of pipe to basket shall be 10 to 1.

2.5 All strainers shall be furnished with minimum 1/2” flanged drain.

2.6 Cover shall be FRP with optional 1/2” vent tap.

2.7 Flanges shall be contact molded.

2.8 Strainer shall be rated for 150 psi at 180 deg. F

2.8 Strainer design shall conform to ASME code for non-metallic pressure vessels.

2.8 Vendor shall supply min 5 years service history of applications in similar service.

3) CONSTRUCTION

3.1 Strainer body shall be of filament wound construction, for sizes 12” and lower. Larger sizes may be hand lay up construction in accordance with PS-15-669.

3.2 Resin shall be Vinyl Ester. Derakane 411 or Hetron 922, or equal.

3.3 Body shall contain a chemical barrier, 10 mils nexus, 90 % resin, 10% reinforcement

3.4 Anti-wicking barrier, 100 mils chopped strand glass, 70% resin to 30% glass shall be
provided.

3.5 Structural layer shall be filament wound continuous roving, 30% resin to 70% glass.

3.4 Exterior protection is unsaturated polyester resin based high quality gel coat- 10 mils min.

4) STANDARDS

4.1 All products shall conform to or exceed the specifications as set forth in the following
standards.

           RTP-1/Sec X          ASTM B31.3/Sec 15           BS1 BS 6464           GSB 41-GP-22

Larger sizes available

Manufacturer reserves the right to modify dimensions, materials, or design. Consult factory for certification.