API SPEC 11AX:2006 pdf download
API SPEC 11AX:2006 pdf download.Specification for Subsurface Sucker Rod Pumps and Fittings.
Note:Metallic materials for subsurface sucker rod pumps for hydrogen sulfide environments are listed in NACE MR-01-76.
3.3lIn addition to the pump designation described in 3.2, the purchaser must provide the following additional information:a. Barrel material.
b.Plunger material.c. Plunger clearance(fit).d. Valve material.
e. Fittings materials.4Design Control4.1GENERAL
4.1.1 Sucker rod pumps shall be identified per Section 3 and assembled in accordance with Section 5.
4.1.2 Component parts designed and manufactured in accordance with this specification shall comply with the dimensionsgiven in Section 6 and be constructed of materials listed in Section 9.
4.1.3 The following applies to all specified limits in this standard: For purposes of determining conformance with this specife-cation,an observed value or a calculated value shall be rounded “to the nearest unit” in the last right-hand digit used in expressingthe specification limit.
4.2DESIGN DOCUMENTATION
4.2.1 Documentation shall include drawings, specifications, procedures, and, if applicable,assumptions, methods, formulae,calculations and test results.
4.2.2 Requirements and acceptance criteria shall be documented.
4.2.3 The method used to determine stroke length for pump assemblies shall be documented.4.2.4 Documentation shall be prepared on a medium that is legible, reproducible, and retrievable.
