AOD Design Improvements

Bolted Design Added in AL & SS 1-1/2” Clamped Design 1-1/2” Bolted Design Manifolds & Pump Chamber Rounded – Efficiency + Cost

Bolted Design Added in AL & SS Aluminum Bolted Sizes Added 1-1/2”, 2” and 3” 1” Aluminum size was always bolted design Stainless Steel Sizes Added 3” bolted is a completely new design There is no 3” SS clamped design

Bolted Designs Added in AL & SS 2” and 3” Bolted Pumps can utilize either an aluminum center section, or the newer polypro center section.

Bolted Designs Added in AL & SS 2” and 3” AL and SS bolted designs have aluminum center section as “standard” 2” Polypro and 2” PVDF (Kynar) pumps have polypro center section as “standard”

Bolted Design Added in AL & SS Advantages of 2” & 3” Aluminum CS Lower cost Higher efficiency at 100+ PSI inlet air pressure Higher efficiency at 100+ GPM Advantages of 2” & 3” Polypro CS Non-icing design Chemically resistant Polypro/SS materials

2” Pump Over Speeding Protection New Teflon pilot spool bumper added Behr Paint; Sunair-distributor Dynamic pump speed control – DRD100 Price Pump video Detects increased air volume and shuts down air supply

Other AOD Improvements New quieter mufflers added as an Option in 2009 New filter/regulators tested w/gauge better flow Spool housing cap now 30% GF Nylon New supplier for 2” SS spool housing; lower cost 3D models of bolted design parts and selected existing parts; could make 3D pump models Electrically conductive CFRPP with ATEX for non-metallic pumps

AOD Accessories/Yamada Pump Speed Controller – Yamada YSC-2EX For 2” and 3” metallic pumps – counts and maintains cycle speed and flow control Dry Run Detector – Yamada DRD-100 For 2” and 3” pumps – prevents over speeding and over stroking by detecting increase in air volume Liquid Level Contoller – LLC1 and LLC2 All pneumatic start/stop sump level control Diaphragm Monitoring – DM2 Leak detection sends electrical signal to controller

AOD Competitors New Features Wilden added new ProFloX air valve Incorporates “needle valve” EMS system Same main spool and pilot spool design “ARO” type unbalanced spool Spool O’rings are pre-lubed – NLGI Grade2 EP Submersible different porting and parts on V,X

AOD Competitors New Features Wilden added new ProFloX air valve All ProFlo valves need O’ring pick

AOD Competitors New Features ARO latest valve design is EXP, unbalanced spool Pump has 5 year warranty Claim optimum energy efficiency Claim best total cost of ownership, convoluted diaphragm – 4 times life Sliding shoe, pre-greased air valve O’rings

AOD Competitors New Features Sliding shoe, pre-greased air valve O’rings

Hydraulic Performance 100 GPM @ 40 PSI Price Pump AOD2-PNNN 63 PSI, 82 SCFM 12.5 HP Wilden PX800 non-metallic 110 PSI, 95 SCFM 20 HP Sandpiper S20 non-metallic design level 3 ARO PX20P non-metallic 100 PSI, 95 SCFM 19 HP