ASME B107.36:2002 pdf download

ASME B107.36:2002 pdf download.PLIERS: LOCKING, CLAMP, AND TUBING PINCH-OFF
1 SCOPE
This Standard covers dimensions and functional char- acteristics of locking clarop pliers and tubing pincb- off pliers suitable for clamping operations in assembly and repair work. Tubing pinch-off pliers are used to pinch off the fow of gas or other material fowing through rubber or soft copper tubing. Inclusion of dimensional and functiona! data in this Standard is not intended to imply that all products described herein are stock production sizes. Consumers are requested to consult with manufacturers conceming lists of stock production sizcs.
4 REQUIREMENTS
4.1 Illustrations Illustrations shown herein are descriptive and not restrictive, and are not intended to preclude the manufac- ture of pliers that are otherwise in accordance with this Standard.
3 NORMATIVE REFERENCES
The following documents form a part of this Standard to the extent specified herein. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this American National Standard are encouraged to investigate the possibility of applying the most recent editions of the documents indicated here. 4.2 Material Materials used in the manufacture of pliers shall be such as to produce pliers conforming to the requirements specified in this Standard. 4.3 Design Pliers shall be similar to the illustration to which reference is made and shall be proportioned in all parts so as to meet the requirements of this Standard. Pliers shall be provided with a toggle or cam device that has an adjustable mechanism designed so that the jaws can be clamped and locked. Pliers shall be released by hand anywhere within the pliers’ capacity by either of the release mechanisms shown in Fig. 1. Test specimens shall withstand applicable test procedures without crack- ing or breaking.
4.4 Handles Handles of pliers shall be through hardened from 30 to 50 HRC or case hardened from 75 to 86 HRlSN, with a case depth of a minimum of 0.010 in. (0.25 mm). Handles shall be so shaped as to afford a comfort- able grip and shall be free from rough edges and sharp comers. When the pliers are locked in any position of the jaws, the minimum handle clearance between the fixed and movable handle shall be as specified in the appropriate tables. Outer hand-gripping surfaces of handles shall be smooth, knurled, or impressed. 4.9 Finish 4.5 Joints Pliers joints shall have no excessive looseness, play, or any other indications of side play of the two halves of the pliers when opened or closed, which could impair the function of pliers. Joint fasteners shall be through hardened from 25 to 50 HRC. Where fasteners receive a case hardening treatment in addition to the through hardening, a maximum hardness of 60 HRC or equivalent will be permitted. 4.6 Jaws 4.6.1 Jaw Openings. Ends of jaws shall open, when adjusted by the screw, to the entire respective clamping range minimum specified in Tables 2 through 5. Pliers shall operate in a smooth and uniform manner. 4.6.2 Jaw Hardness. Jaws shall be through hard- ened from 35 to 50 HRC or case hardened from 83 to 90 HRlSN, with a case depth minimum of 0.010 in. (0.25 mm). If provided, swivel pads need not be hardened.4.7 Adjusting Screw have a minimum hardness of 30 HRC. Adjusting screw located at the end of handle shall 4.8 Marking Pliers shall be marked in a plain and permanent manner with the manufacturer’s name or with a trade- mark of such known character that the source of manufacture and country of origin can be readily deter- mined. Marking shall be as permanent as the normal life expectancy of the pliers, providing the surface has not been subjected to a fretting or abrading action, and be capable of withstanding the cleaning normally experienced during its intended use.