EXAMPLES OF NEW PRODUCTS
AS A BY-PRODUCT

PINCH-OFF VALVE PRODUCTS

ANOTHER EXAMPLE IS MODIFICATION TO A STANDARD RAM INVOLVING A CHANGE TO THE BODY TO CREATE A PINCH-OFF VALVE FOR CLOSING OR OPENING FLOW OF A CORROSIVE, ABRASIVE OR SENSITIVE FLUID WITHOUT FLUID CONTACT WITH VALVE MATERIALS. OPERATION IS REMOTELY CONTROLLED WITH A SIMPLE THREE-WAY VALVE CIRCUIT USING PLANT AIR. A LOW FRICTION "FLOATING O-RING" IS USED ON THE PISTON HEAD AND ELASTIC MEMORY FROM PLASTIC TUBING PLUS INTERNAL PRESSURE OPENS THE VALVE.