15mm SS Drainage & Fire Fighting Water Hammer Arrestor Type AA LIV-WHA-SS-AA Lehry

Lehry Make Water Hammer Arrestor  Stainless Steel  Bellows

Technical Specification 

• Body : SS 304
• Piston : Teflon
• O-Rings: (2) EPDM
• Threaded : SS
• Working Pressure : 300 Psi (20 Bar),
• Temerature Range : -100°F t0 300°F (-73°C to 149°C)
• Media : Water.
• Fixture Unit : 1 - 5
• Item Code : LIV-WHA-SS-AA-15MM

LEHRY SS DRAINAGE & FIRE FIGHTING WATER HAMMER ARRESTORS Provide
Complete Protechtion Against Water Hammer In Common Pipe Diameters For varying Pipe
Lengths Wherever Flow Velocity Is subject To Sudden Change-In Quick Closing, Solenoid-Actuated valves Used With Lavatories And Sinks, Dishwashers, And Residential Automatic
washer; In Improperly Adjusted Water Closet Flush valves; In Pumping Systems, And In Drinking
Fountains Ore Similar Installations Where Water Flow Is Valved For Intermittent Operation.
The LIV-WHA-SS-001 Water Hammer Arrestors Has Its shock-Absorbing Air Cushion
Hermetically Sealed Within The Unit. Consequently, There Is No Loss Of Air Form The Surgetrol
Due To Leakage Past Worm Elastomeric Sealing Surfaces Nor Due To Permeation Through
Elastomeric Features.
In Addition, The Lehry Bellows Type 304 (18-8) Stailess Steel construction Makes It
Virtuallyimmune To Attack Ad Degradation By High Levels Of Chloramine And Other Common
Waterborne Chemicals Which Quickly Degrade Elastomeric Components.

Specification

LEHR Pre-Charged All Stainless Steel Type SS304 (18-8) With Stainless Steel Diaphragm
Bellows, And Male & BSP Threaded Connection

• Features
• BSP Solid Hex Brass Adapter Or Solder End Connection For Easy Installation
• Approved For Installation With No Access Panel Required
• May Be Installed In New Or Existing Plumbing Systems With A Standard Pipe Tee Vertically.
• Maintenance Free – Piston Is The Only Moving Part
• Air Pre-Load Is 60psi (4.2 Kg/Cm²)
• Factory Air Charged And Permanently Sealed

Materials

Pressure - Temperature

• Lehry SS WHA Are Pre-Charged And
  Permanently Sealed At The Factory
• Lehry SS WHA Type – AA To Type – F
  Inclusive Conforms To ASSE Standard #1010.
• Certificate Of Compliance Available Upon
  Request

ALWAYS INSTALL IN UPRIGHT POSITON

Lehry SS WHA Should Be Placed At Location Denoted On Engineer’s Plans. Unit Must Be
Installed In A Vertical (Upright) Position To Ensure Proper Operation Of The Internal Bellows.
When Installing

• place wrench On Nipple Only.
• Never Tighten By Gripping Shell.

Sizing And Placement 
As shown, It Has Been Established That The Preferred Location For The Water Hammer
Arrestor Is At The End Of The Branch Line Between The Last Two Fixtures Served.
The Location Of The Water Hammer Arrestor Shown Above Applies To Branch Lines That
Do Not Exceed 20 ft. (6m) In Length, From The Start Of The Horizontal Branch Line To The Last Fixture
Supply On This Branch Line. When The Branch Line Exceeds The 20 ft. (6m) Length, An Additional
Water Hammer Arrestor Should Be Used. This Practice Is Best Defined By Two Rules Which Have
Been Established To Cover The Placement Of Water Hammer Arrestors.

Dimensions                (All Dimensions Are In mm)