NELSON - MINI DRAIN CHECK 20 PSI, 1/2" FNPT X ACME

Prevent drain down and puddling of hanging (inverted) sprinkler systems in indoor nurseries and riding arenas.

The MDC eliminates sprinkler drizzle at startup and shut down with a check valve feature. The MDC is a check valve only that opens .14-.35 bar (2-5 psi) below the nominal pressure rating. Available in 1.4 / 2.4 bar (20 and 35 psi) options

Ideal for use with ½" Acme threaded Rotator Sprinklers.