Information is needed about this device. It has 4 connections numbered 1 and 2 on the top and 3 and 4 on the bottom. It carries the marking 377B.
Donated by Lew Paterson
This file was last modified15:29:00, Tuesday September 02, 2014
FOR SALE: Note that any valve which is not CV marked is now for sale. Contact me via email - see the home page.