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Crown block specifications

Maximum Load Rating Bases. The maximum load rating will be based on the design safety factor and the yield strength of the material. Crown block beams are an exception and shall be rated and tested in accordance with API Spec 4E Specification for Drilling and Well Servicing Structures. ... [Pg.531]

Crown Blocks. For crown block design, see API Specification 4F. Crown block sheaves and bearings shall be designed in accordance with API Specification 8A. [Pg.532]

Sheaves conforming to the specifications (Specification 8A) shall be marked with the manufacturer s name or mark, the sheave groove size and the sheave OD. These markings shall be cast or stamped on the outer rim of the sheave groove and stamped on the nameplate of crown and traveling blocks. For example, a 36-in. sheave with 1 in. groove shall be marked... [Pg.601]

Fig. 2 Exemplary cases of linear podand types (monopodands. open-chain crown compounds) (a) conventional (b,c) modified donor atoms (d)-(g) mixed donor groups (h,i) rigid building blocks and (j,k) specific donor end groups. Fig. 2 Exemplary cases of linear podand types (monopodands. open-chain crown compounds) (a) conventional (b,c) modified donor atoms (d)-(g) mixed donor groups (h,i) rigid building blocks and (j,k) specific donor end groups.
See other pages where Crown block specifications is mentioned: [Pg.207]    [Pg.661]    [Pg.235]    [Pg.44]    [Pg.28]    [Pg.170]    [Pg.667]    [Pg.1058]    [Pg.3]    [Pg.267]    [Pg.337]    [Pg.444]    [Pg.337]    [Pg.3368]    [Pg.573]    [Pg.263]    [Pg.573]    [Pg.367]   
See also in sourсe #XX -- [ Pg.512 ]



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Crown block

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