What is the recommended minimum space (envelope) needed around the Klauke tool and jaws to press?

An envelope of 11 x 7 is recommended. For 1-3/8 couplings, a minimum of 4.4is required between couplings (down to 3.3 for 1/4 couplings). A minimum of 2.3 from the back wall surface is required. You need 2.5 between couplings for jaws if the tool is coming up from below the fittings to press. Contact RLS with questions.