Page 123 - GRINNELL Mechanical Products Catalogue

pLAiN END SySTEmS
The GRINNELL Plain End Piping System is designed for use in both maintenance and new system applications and eliminates the need for pipe end preparation . The Figure 909 Plain End Coupling features case-hardened gripping teeth that securely grip onto the pipe surface . The coupling is designed for schedule 40 steel pipe and is not for use with steel pipe with a Brinell hardness greater than 150 HB, nor is it switchable for plastic pipe, cast, or ductile iron pipe .
Contact GRINNELL Mechanical Products about other materials and pipe schedules . Follow bolt torque ratings to ensure a properly assembled coupling .
MATERIAL SPECIFICATIoNS
Coupling Ductile Iron Housing Specifications
• ASTM A 536 – Standard specification for ductile iron castings, Grade 65-45-12
• Tensile strength, minimum 448,159 kPa (65,000 psi)
• Yield strength, minimum 310,264 kPa (45,000 psi)
• Elongation in 50mm (2"), minimum 12%
• ASTM A 153 – Standard specification for hot-dipped galvanising
Bolt/Nut Specifications
Coupling Specifications
Tech Data Sheet: G190
Gasket Specifications
• Grade “E” EPDM gaskets have a green colour
code identification and conform to ASTM D 2000 for service temperatures from -34°C to 110°C (-30°F to 230°F) . They are recommended for hot water not to exceed 110°C (230°F), plus a variety of dilute acids, oil free air, and many chemical services . They are
not recommended for petroleum services . For low temperature and vacuum systems, a Tri-Seal Grade “E” EPDM gasket with rigid coupling is recommended .
• Grade “T” Nitrile gaskets have an orange colour code identification and conform to ASTM D 2000 for service temperatures from -29°C to 82°C (-20°F to 180°F) . They are recommended for petroleum products, vegetable oils, mineral oils, and air with oil vapours .
Coatings
• Orange – Non-lead paint (standard)
Fitting Specifications
Tech Data Sheet: G192
Plain end fittings are manufactured to provide minimum pressure drop and uniform flow . Fittings are designed for use with the Figure 909 Plain End Couplings only .
Plain end fittings are available in a variety of styles .
• Carbon steel oval neck bolts and nuts are heat-treated and conform to the physical properties of ASTM A 183 with a minimum tensile strength of 758,422 kPa (110,000 psi) . Bolts and nuts are zinc electroplated to ASTM B 633 .
• Gold colour coded metric bolts conforming to the physical properties of ASTM F 568M are available upon request . Contact GRINNELL Mechanical Products .
Fitting Specifications
• Carbon steel: according to ASTM A 53, Grade B
• Tensile strength, minimum 413,685 kPa (60,000 psi)
• Yield strength, minimum 241,316 kPa (35,000 psi)
• Sizes 32mm – 250mm (11⁄4" – 10") – Schedule 40
• Sizes 300mm – 600mm (12" – 24") – Std . Wall (.375)
Coatings
• Orange – Non-lead paint (standard)
• Hot-Dipped, Zinc galvanised (optional)
Refer to back cover for country-specific customer care numbers. 123
Plain End SyStEmS