Wilkins Model 420 / 420XL PVB

420The Wilkins 420 is a pressure vacuum breaker (PVB).  It is available in ½” – 1” sizes and production began in 1998.  The 420 was discontinued in 2014.  The body is made of bronze.  The original version of the 420 had male threads on the body and a female threaded bonnet.  The current version has female threads on the body and a male threaded bonnet.  A lead free version was introduced in 2010 (420XL).


Parts Breakdown

PDF  Series 420 / 420XL Parts Breakdown

Repair Procedures

Repair Videos

Not Currently Available

Repair Guy Article

Not Currently Available

Spec Sheet

Category: Wilkins