Specification for hose couplings for petrol, oil and lubricants (¾ in. to 4 in. nominal sizes)
This British Standard applies to the following types of reduced bore couplings and adaptors:
The maximum pressures recommended for the couplings when they are attached to suitable hoses (see Foreword, paragraph 6) are as follows:
- 100 lb/sq. in. when the hose is secured to the coupling by wire binding.
- 150 lb/sq. in. when the hose is secured to the ribbed type of coupling by suitable clips.
Reduced bore couplings and adaptors for pressures up to 100 lb/sq in.
Whitworth (B.S.P.) threads to BS 84 and American threads to ASA specification B.33.1 (¾ in to 2 in) and Federal Standard ZZ-H-466b (November 1935) (2½ in to 4 in).
Details of American threads. Compatible with oil equipment to API Std 5L and 6A.
Materials, dimensions, workmanship, marking, hydrostatic testing.
Illustrations with full dimensions.
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