Well Service Air Valves, NSF/ANSI 61, WQA Certified Lead-Free, AWWA C512, Val-Matic®
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Well Service
Air Valves
Well Service Air Valves are a member of the Air/Vacuum family and are used with vertical pumps. Well Service Valves are specifically designed to vent the air from the pump column during pump start-up in a controlled manner before the check valve opens to reduce pressure surges that result from the accelerating water column.
Specifications Materials of Construction Dimension Drawings Instruction Manuals Technical Data

Well Service Air Valve
NSF/ANSI Logo
NSF/ANSI 61

UL Logo
2"-3"
Fire Protection

Air Valve Brochure
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    Product Overview

  • Fully complies with AWWA C512
  • NSF/ANSI 61 certified
  • UL Listed for fire pump service - 2" and 3"
  • Manufactured under a certified ISO 9001 quality system
  • Available in sizes 1/2"-3" equipped with Dual Port Throttling Device
  • 4" and larger equipped with Regulated-Exhaust Device mounted on the inlet
  • Regulates the exhaust of air on pump start-up
  • Admits air to protect pump and mechanical seals
  • Protects against air-related surges on pump start-up
  •  

    Features

  • Unconditionally guaranteed 316 stainless steel floats
  • Inlets and outlets are equal to full nominal pipe area
    Dual Port Throttling Device
  • Adjustable discharge outlet provides regulated air exhaust
  • Allows air to enter the system on pump shut down through an unrestricted independent vacuum port
    Regulated-Exhaust Device
  • Restrictor disc provides regulated exhaust to limit pump column surges
  • Ability to adjust air exhaust for greater surge suppression
  • Provides full vacuum flow port

SpecificationsMaterials of ConstructionDimension Drawings Instruction Materials Technical Data


Specifications
Valve Size Product Description

Drawing Number

1/2" - 12" Well Service Air Valves VM-100ST-S
2" - 3"

Fire Protection Well Service Air Valves

VM-102ST-S

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Standard Materials of Construction
(contact factory for optional materials)
Valve Size Product Description

Drawing Number

1/2" - 3"

100S Air/Vacuum Valve

VM-100S-M
1/2" - 3"

Dual Port Throttling Device

VM-5DPT-M
4" - 12"

1200S Regulated Exhaust Device (RED)

VM-1200S-M

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Dimension Drawings
Valve Size Product Description

Drawing Number

1/2" - 3"

100ST Well Service Air Valve - with Dual Port Throttling Device

VM-100ST
1/2" - 3" Dual Port Throttling Device VM-5DPT
4" - 12" 104SS Surge-Suppression Air Valve VM-104SS

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Instruction Manuals
Valve Size Product Description

Drawing Number

1/2" - 3"

Well Service Air Valve

WSAV-OM1
4" - 20" Well Service Air Valve SSAVV-OM1

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Technical Data
Description Drawing Number

Well Service Air Valve Guide for Vertical Pumps

AEG302

Well Service Air Valve Sizing

SS-1018
Applications & Features Chart

Air Valves for Fire Protection Service

White Paper

Well Service Air Valve Installation - 1/2" - 3"

CAD - PDF

Well Service Air Valve Installation - 4" - 20"

CAD - PDF

Well Service Air Valve Installation

CAD - PDF

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