ASME B107.36:2002 pdf free download

ASME B107.36:2002 pdf free download.PLIERS: LOCKING,CLAMP, AND TUBING PINCH-OFF.
ASME B107.36 covers dimensions and functional charactenstics of locking clamp plicrs and tubing pinchoff pliers suitahic for clamping opcrations in assembly and repair work. Tubing pinch-off p11cm are used to pinch off the flow of gas or other material flowing through rubber or soft coppcr tubing. Inclusion of dimcnsional and functional data in this Suindard is not intended to imply that all products dcscribcd hcrcin arc stock production sizcs. Consumcrs arc requested to consult with manufacturers concerning lists of stock production sizes.
2 CLASSIFICATION
Pliers covcrcd by this Standard shall bc of thc following types, classcs. and styics, as specified.
4.4 Handles
Handlcs of pliers shall be through hardcncd from 30(050 HRC or case hardened from 75 to 86 HRI5N, with a casc dcpth of a minimum of 0.010 in. (0.25 mm). Handles shall be so shaped as to afford a comfortable grip and shall be free from rough edges and sharp corners. When the phers are locked in any position of the jaws, the mrnimum 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.
4.5 Joints
Pliers joints shafl have no cxcessivc looseness, play. or any other indications of side play of the two halves of the pliers when opened or closed, which could impair thc function of pliers. Joint fasteners shall be through hardened from 25 to 50 HRC. Where fasteners rc*zivc a casc hardening trcatmCnL in addition to thc through hardcning, a maximum hardncss of 60 HRC or cquivalcnt will be pcnnittcd.
4.6 Jaws
4.6.1 Jaw Openings. Ends of jaws shall open, when adjustcd 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 hardened from 35 to 50 HRC or case hardened from 83 to 90 HRI5N, with a case depth minimum of 0.010 in. (0.25 mm). If provided, swivel pads need not be hardcncd.
4.7 Adjusting Screw
Adjusting screw located at the cnd of handle shall have a minimum hardness of 30 HRC,
5.3 Locking/Load Test- Type t
Pliers shall be tested on a system capable of applyingthc requircd minimum tcst load given in Table 1. Thcpliers’ handles shall be locked,using maximum valueshown in Table 1.Test load shall be applied to thejaw tips in a direction to spread the jaw clampingsurfaces apart for a minimum of 10 sec. Pliers shallremain locked while the load is applied. Pliers shallhave passed the test if the jaw tips close.and all thejoints and adjusting screw work properly after removalof the load.
5.4 Pinch-Off Test – Type ll
Pliers shall be tested using the following procedure;5.4.1 Fit a 0.25 in.(6.4 mm) outside diameter softcopper tube, with a 0.030 in. (0.76 mm) wall thickness,onto an air line having an air pressure of 95 to 100lb/sq in. gauge (psig)(6.7 to 7.0 kPa).
5.4.2 Place the copper tube between the jaws ofthe pliers 0.50 in. (12.7 mm) minimum from free endof the tube. Apply 70 to 75 lb of force (311 to 334N) to the end of the movable handle to close the pliers.With air pressure of 95 to 100 psig (6.7 to 7.0 kPa)applied to one end of the tube, immerse the other endof the tube and the pliers in water.