UnionsE+W+S
4.—(1) Every union shall be so constructed and fitted that it will—
(a)not be liable to work loose or develop leakage when in use; and
(b)be readily accessible for inspection and adjustment.
(2) No union on a pressure pipe line or on a gas cylinder shall contain a joint other than a metal to metal joint.
Commencement Information
I1Sch. 4 Pt. I para. 4 in force at 11.8.1986, see reg. 1