YAMADA Yamada® NDP-20 Diaphragm Pump Series
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작성자건아테크 댓글 0건 조회 2,142회 작성일 18-10-16 15:22본문
NDP-20 Polypropylene, ANSI Flange
12.44" W x 14.75" H
Net Weight: 17.6 lbs. (8.2 kg)
Shipping Weight: 22.6 lbs.
Yamada® NDP-20 series Air Powered Double Diaphragm (AODD) pumps provide a maximum flow rate of 28 gallons per minute. Pumps are available in aluminum, stainless steel (316), and polypropylene construction, with a wide variety of diaphragm materials.
Unified Air Valve Concept – 2 common size air valve assemblies used for 6 sizes of pumps
Reducing reassembly confusion and parts inventory
Truly No-Lubricated Air Valve – patented air valve on all NDP series pumps
Never requires lubrication or pre-packing
Non-Stalling – patented non-centering, 304SS spring-assisted shifter, ensuring a positive shift every time
Tested to last over 300 million cycles
Aides in long dead head application for reliable startup
What separates Yamada from the rest of the pack is our air valve technology. Yamada uses a completely non-lubricated main air valve and independent pilot mechanisms to control the air logic.
As compressed air enters the pump, it is directed via the main air valve to one side or the other, depending upon the starting position of the c-spool. As the air enters the chamber, it forces the diaphragm outward. This outward momentum forces liquid out of the discharge ball valve and loads the opposite inlet ball valve. As the diaphragm travels outward, the connected diaphragm on the opposite side is pulling the diaphragm inward.
When it travels a full stroke, it will contact the pilot valve, depressing it and breaking the seal to open an exhaust port.
The open port allows the compressed air to the exhaust from the back side of the air valve. The pressure drop produces a shift of the main air valve. This motion simply repeats on the other side.
GENERAL PUMP INFORMATION
Intake & Discharge Connections
Maximum Liquid Temperature1
MATERIAL TYPES
ACCESSORIES
The Yamada Advantage
Yamada Air Powered Double Diaphragm Pumps: Engineered for High Performance. Manufactured for Long Life.
Patented Air Valve Technology
Incorporated in every Yamada Air Powered Double Diaphragm pump
Why Specify an AODD Pump?
Contact Us
Literatures & Drawings
Printable Specs
Maintenance Manuals
NDP-20/25/32 English
NDP-20/25-PP English
NDP-20/25/32 Español
NDP-20/25-PP Español
CAD Drawings
NDP-20 Aluminum NPT (JPG)
NDP-20 Aluminum NPT (DWG)
NDP-20 Aluminum NPT (PDF)
NDP-20 Aluminum 1S NPT (JPG)
NDP-20 Aluminum 1S NPT (DWG)
NDP-20 Aluminum 1S NPT (PDF)
NDP-20 Aluminum Drum NPT (JPG)
NDP-20 Aluminum Drum NPT (DWG)
NDP-20 Aluminum Drum NPT (PDF)
NDP-20 Polypropylene, Flange (JPG)
NDP-20 Polypropylene, Flange (DWG)
NDP-20 Polypropylene, Flange (PDF)
NDP-20 Polypropylene, NPT (JPG)
NDP-20 Polypropylene, NPT (DWG)
NDP-20 Polypropylene, NPT (PDF)
NDP-20-PP Polypropylene, NPT (JPG)
NDP-20-PP Polypropylene, NPT (DWG)
NDP-20-PP Polypropylene, NPT (PDF)
NDP-20 Stainless Steel, NPT (JPG)
NDP-20 Stainless Steel, NPT (DWG)
NDP-20 Stainless Steel, NPT (PDF)
3D CAD Drawings
NDP-20 Aluminum (EPRT)
NDP-20 Stainless Steel NPT (EPRT)
NDP-20 Polypropylene Flange (EPRT)
NDP-20 Polypropylene NPT (EPRT)
NDP-20 Aluminum (IGS)
NDP-20 Stainless Steel NPT (IGS)
NDP-20 Polypropylene Flange (IGS)
NDP-20 Polypropylene NPT (IGS)
Performance Curve
Rubber Diaphragm
PTFE Diaphragm
Bill of Materials
NDP-20BAV
NDP-20BAT
NDP-20BAS
NDP-20BAN
NDP-20BAN-1S
NDP-20BAH
NDP-20BAE
NDP-20BAC
NDP-20BPC-PP
NDP-20BPC
NDP-20BPE-PP
NDP-20BPE
NDP-20BPH-PP
NDP-20BPH
NDP-20BPN-PP
NDP-20BPN
NDP-20BPS-PP
NDP-20BPS
NDP-20BPT-PP
NDP-20BPT
NDP-20BPV-PP
NDP-20BPV
NDP-20BSC
NDP-20BSE
NDP-20BSH
NDP-20BSN
NDP-20BSS
NDP-20BST
NDP-20BSV
Videos
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