Parts Availability:
We will be able to supply replacement parts for a period of
five years effective the 2nd quarter of 2003.

Pricing:
The Type 21 valve will be priced the same as the Duo-Bloc,
even withthe additional features and benefits.

Interchangeability:
TheType-21 (1/2” – 2”) will not have parts or face to face
dimension interchangeability. (Socket and Threaded Versions only) 
Flanged models will have face to face dimension interchangeability only ,
but no parts interchangeability.

 Features and Benefits:

• Increased Pressure Rating – Type-21 (1/2” – 2”) PVC 
  and CPVC are rated for 230 psi maximum working pressure.
• Built-in Spanner Wrench – Valve handle doubles as
  carrier adjustment or removal tool when maintenance is
  required.
• Double O-ring Stem seals – The Type-21 has Double
  O-ring stem seals that increase operator safety in severe applications.
• Single Carrier Design- Only one carrier to adjust
  which insures the ball is centered within the body.
• Improves field safety when used as a blocking valve
  as it eliminates  a threaded connection or potential
  leak path.
• ISO Mounting Pad – The Type-21 valve has an integral
  molded ISO mounting pad. Simply removal the handle and
  it allows easy mounting of accessories or automation, with
  no valve modifications required.
• Panel Mount Provision – There is a molded platform on
  the bottom of the Type-21 that accepts self-tapping
  threaded inserts. This allows for supporting the valve to a
  panel or wall. 

Type 21-Valve Accessories

• Actuation ( Electric and Pneumatic)
• 2” square operating nuts and T-nuts
• Locking devices
• Manual limit switch kits
• Panel mount stem extensions
• Single and 2-piece stem extensions, in a variety of materials.
• Optional O-ring materials
• Vented Ball (Sodium Hypochlorite Service)

 If you have any questions or concerns, please consult your Asahi/America District Manager, or our Customer Service Department.