Standard #1020

Pressure Vacuum Breaker Assembly

ASSE Revised - 2004

Ames Company, Inc.

Revision: 2004

Model: A200

Size: ¾”, 1", 1½”, 2"

Issued: 08/01/1997

Amended: 04/04/2006

Apollo Valves (Conbraco Industries)

Revision: 2004

Model: 40-503

Size: ½”

Model: 40-504 - Size: ¾”

Model: 40-505 - Size: 1"

Issued: 05/09/1990

Amended: 02/07/2006

Revision: 2004

Model: PVB

Size: ½”, ¾”, 1"

Issued: 02/16/1998

Amended: 05/17/2005

Amended: 02/07/2006

Revision: 2004

Model: PVB

Size: 1¼”, 1½”

Issued: 07/13/2000

Amended: 05/17/2005

Amended: 02/07/2006

Revision: 2004

Model: PVB

Size: 2”

Issued: 08/07/2002

Amended: 05/17/2005

Amended: 02/07/2006

Revision: 2004

Model: PVB-4A

Size: ½”, ¾”, 1” – w/ QT Ball Valves

Issued: 11/27/2007

Cash Acme/Reliance Worldwide (Cash Flo)

Revision: 2004

Model: B9500

Size: 3/4” – Horizontal

Issued: 07/20/2006

Amended: 12/11/2007

Revision: 2004

Model: B9501

Size: 1” – Horizontal

Issued: 07/20/2006

Amended: 12/11/2007

Conbraco Industries

See Apollo Valves (Conbraco Industries)

FEBCO

Revision: 2004

Model: 765 & 765U

Size: ½”, ¾”, 1", 1¼”, 1½”, 2"

Issued: 08/27/1981

Amended: 03/04/2008

Revision: 2004

Model: 767FR (LF, U)

Size: ½”, ¾”, 1”, 1¼”, 1½”, 2”

Issued: 03/02/2006

Amended: 03/20/2007

Danfoss Flomatic Corporation

Revision: 2004

Model: B 9500

Size: ¾”

Issued: 10/20/1995

Amended: 07/20/2006, 02/07/2008

Revision: 2004

Model: B9501

Size: 1”

Issued: 10/20/1995, 02/07/2008

Toro Company

Revision: 2004

Model: 220-03, 220-04, 220-13, 220-14, 53300

Issued: 10/01/1993

Amended: 04/22/1997; 07/23/2007

Watts Regulator Co.

(All models listed under this standard are also approved with the model prefix of LF)

Revision: 2004

Model: 800M

Size: ½”, ¾”

Issued: 03/23/1984

Amended: 02/28/2006, 04/04/2006

Revision: 2004

Model: 800CM

Size: ½”, ¾”

Issued: 03/23/1984

Amended: 02/28/2006, 04/04/2006

Revision: 2004

Model: 800M4QT

(LF, U) 800M4QT

Size: ¾”, 1”

Issued: 07/21/1994

Amended: 02/28/2006, 04/04/2006

Revision: 2004

Model: 800M4QT

(LF) 800M4QT

Size: ½”, 1½”, 2”

Issued: 07/21/1994

Amended: 04/04/2006

Revision: 2004

Model: LF -800M4-FR

Size: 1”

Issued: 11/14/1995

Amended: 02/28/2006, 04/04/2006

Revision: 2004

Model: LF- 800M4-FR

Size: 1¼”, 1½”, 2”

Issued: 11/04/1997

Amended: 02/28/2006, 04/04/2006

Revision: 2004

Model: 800M4FR (LF)

Size: ½”, ¾”

Issued: 08/26/1998

Amended: 04/04/2006

Wilkins/Division of Zurn

Revision: 2004

Model: 720A

Size: ½”, ¾”, 1", 1¼”, 1½”, 2"

Issued: 06/28/1990

Amended: 02/26/2007

Exemption from displaying the logo granted 03/23/2006

Revision: 2004

Model: 420

Size: 1"

Issued: 11/06/1997

Amended: 02/15/2007

Exemption from displaying the logo granted 03/23/2006

Revision: 2004

Model: 420

Size: ½” and ¾”

Issued: 02/26/1998

Amended: 02/15/2007

Exemption from displaying the logo granted 03/23/2006