Wilkerson WBA208  Series

Precision Pneumatic Input Signal Amplifier

Features :
• The WBA208 uses a pneumatic input signal to accurately control output pressure based on a predetermined ratio.
• A balanced Supply Valve minimizes the effects of supply pressure variation.
• An Aspirator Tube compensates downstream pressure droop under fl owing conditions.
• Optional Adjustable By-Pass Needle Valve allows tuning for optimum dynamic response
(1:1 ratio only).
• Optional Fixed Negative Bias allows operation with pneumatic devices that cannot be adjusted to zero input pressure.
• A separate Control Chamber isolates the diaphragm from the main fl ow to eliminate
hunting and buzzing.
• Unit construction allows servicing without removal. • Mounting Bracket available.

Types :

WBA20812

WBA20822

WBA20832

WBA208-1-2

WBA208-2-2

WBA208-3-2

Mounting Bracket : PS09921

Service Kits:

1:1 Ratio : PS19513-11

1:1 Ratio w/ By-Pass Valve : PS19513-11I

1:2 Ratio : PS19513-12 1:3 Ratio : PS19513-1