Surge-Suppression Air Valves

Surge-Suppression Air Valves are Combination Air Valves equipped with Regulated-Exhaust Devices (slow-closing devices) to limit secondary surges during column separation. The Val-Matic Surge-Suppression Air Valve provides full airflow into the pipeline during vacuum conditions to prevent a vapor pocket (vacuum) from forming.

Product Overview

  • Available in sizes 1/2" - 20"
  • Provides full vacuum protection for the pipeline
  • Provides controlled venting to suppress surges in pipeline
  • Minimizes water blow-by during Air Valve closure
  • Allows the use of smaller valve size by utilizing a maximum sizing differential pressure of 5 psig
  • Releases entrained air while pipeline is operating to maintain pumping efficiency
  • Manufactured under a certified ISO 9001 quality system
  • Automated Sizing Program

    • Features

  • Restrictor disc provides regulated exhaust to limit secondary surges during column separation
  • Ability to adjust air exhaust for greater surge suppression
  • Provides full vacuum flow port for maximum pipeline protection

    • Certifications

  • NSF/ANSI 372 Certified Lead-Free
  • NSF/ANSI 61 Certified for Drinking Water
  • Meets AWWA C512 requirements

    •  

    Valve Size Product Description Drawing Number
    1/2" - 20" Air/Vacuum Valve VM-100-S
    1" - 20" Combination Air Valve VM-200C-S
    1/2" - 20" Surge-Suppression Air Valve VM-200CSS-S
    1" - 8" Wastewater Combination Air Valve VM-800-S

     

    Valve Size Product Description Drawing Number
    2 1/2" - 12" 1200AS Regulated Exhaust Device VM-1200AS.1-M
    14" - 42" 1200S Regulated Exhaust Device VM-1214S.1-M
    1" - 2" 1201S Regulated Exhaust Device - Threaded VM-1201S-M

     

    Valve Size Product Description Drawing Number CAD Version
    Regulated Exhaust Device
    3" - 12" 1200AS Regulated Exhaust Device VMC-1200AS CAD-1200AS
    14" - 20" 1200S Regulated Exhaust Device VMC-1214S CAD-1214S
    1" - 2" 1201S Regulated Exhaust Device - Threaded VM-1201S  
    Air/Vacuum Valve
    1" - 2" 101SS Surge-Suppression Air/Vacuum Valve VM-101SS  
    3" 103SSA Surge-Suppression Air/Vacuum Valve VM-103SSA  
    4" - 12" 104SSA Surge-Suppression Air/Vacuum Valve VM-104SSA  
    Combination Air Valve - Dual Body
    3" 103SSA/22 Surge-Suppression Combination Air Valve - Dual Body VM-103SSA/22  
    4" - 12" 104SSA/22 Surge-Suppression Combination Air Valve - Dual Body VM-104SSA/22  
    4" - 12" 104SSA/38 Surge-Suppression Combination Air Valve - Dual Body VM-104SSA/38  
    6" - 8" 106SSA/38 Surge-Suppression Combination Air Valve - Dual Body VM-106SSA/38  
    10" - 20" 110FSSA/38 Surge-Suppression Combination Air Valve - Dual Body VM-110FSSA/38  
    Combination Air Valve - Single Body
    1" - 2" 201CSS Surge-Suppression Combination Air Valve VM-201CSS  
    3" - 4" 203CSSA Surge-Suppression Combination Air Valve VM-203CSSA  
    6" - 8" 206CSSA Surge-Suppression Combination Air Valve VMC-206CSSA CAD-206CSSA
    Wastewater Air/Vacuum Air Valve
    1" - 2" 301SS Wastewater Surge-Suppression Air/Vacuum Valve VM-301SS  
    3" 303SSA Wastewater Surge-Suppression Air/Vacuum Valve VM-303SSA  
    4" - 8" 304SSA Wastewater Surge-Suppression Air/Vacuum Valve VM-304SSA  
    Wastewater Combination Air Valve
    1" - 2" 801SS Wastewater Surge-Suppression Combination Air Valve VM-801SS  
    3" - 4" 803SSA Wastewater Surge-Suppression Combination Air Valve VM-803SSA  

     

    Valve Size Product Description Drawing Number
    1/2" - 3" Surge-Suppression Air/Vacuum Valve SSAVV-OM2
    4" - 20" Surge-Suppression Air/Vacuum Valve SSAVV-OM1
    4" - 20" Surge-Suppression Combination Air Valve SSCAV-OM1
    4" - 20" Surge-Suppression Combination Air Valve - Spanish SSCAV-OM1-SP
    1" - 4" Wastewater Surge-Suppression Combination Air Valve WSSAV-OM1

     

    Product Description Drawing Number
    Theory, Application and Sizing of Air Valves White Paper
    Air in Pipelines White Paper
    Application Chart Chart

    Surge-Supression Air Valve Brochure