overview

PREVENT DAMAGE FROM INDUCED VACUUM.
SAFEGUARD AGAINST FREEZE-UPS.

The DSC VB-1 vacuum breaker is the positive means of
preventing damage to tanks, cookers, coils, fin tubing and
all applications where temperature drops in steam and hot
water containers, pipes, etc, create vacuum. Safeguard against
freeze-ups of coils, radiation etc, resulted from inability to
pass condensate through open trap because of induced vacuum

SOME TYPICAL APPLICATIONS

To relieve vacuum formed by throttling control valve in steam
mains, coils, unit heaters, fin tubing, etc and avoid possibility
of water hammer. To relieve vacuum formed in jacket kettles
when steam is shut off and this prevent collapse of jacket.
Any steam or water system where vacuum must be reduced or
eliminated by quick positive action.

CHECK THESE FEATURES:

Round, stainless steel seat plug for “bubble” tightnessAgainst pressure.
Compact---only 62mm long! 1/2” pipe size
Fine, stainless steel spring to insure positive seating.
Rugged stainless steel Housing.
Sensitive—wide range of calibration for special applications.