Yamada NDP-20BSS Pump

Yamada NDP-20BSS Pump

Yamada NDP-20BSV Pump

Yamada NDP-20BSV Pump

Yamada NDP-20BST Pump

Availability: In stock

Packing and shipping

Packaging Regulation :

Wooden box

Delivery time :

7~14 days(About)

Conditions :

New and Genuine

How do you order?

A&S makes ordering GET Parts easy. Simply send a mail to Us. Instead of searching online and guessing which parts you need, our team will make sure you get the correct parts. We process and deliver your order fast, and always at a competitive price. Enjoy 5-star service!

Determine the parts you need. To ensure the correct parts are quoted, it's best to have the machine make and model, along with part numbers and photos of the nameplate if possible. Our team of professionals are here to help ensure you get the correct parts that fit and work the first time. Our sales team can also survey and help identify the parts you may need. Please email us to get started!

Our professional internal sales teams and strong supply chain system will assist you to identify the right parts, and can recommend the most cost-effective solution for you. Our team of professionals will process your order, and ensure your order is correct the first time. With over 15 years in the business, we remove the guesswork and always deliver.

We'll ship or deliver your products as required, to your nominated location. If you're also located elsewhere, we'll identify the best shipping options for both price and delivery time. Email us now!


NDP-20 Specifications

Port Dimensions (31.7 GPM Max.)

Intake & discharge connection:

Polypropylene (PPG)                3/4" Female NPT

Aluminum (ADC-12)                  3/4" Female NPT

Stainless Steel (316)              3/4" Female NPT

Air inlet (incl. ball valve):      1/4" Female NPT

Air exhaust (incl. silencer):      3/4" Female NPT

ANSI Flange also available - consult Yamada.

Maximum Liquid Temperature*

Diaphragm Material           Temperature

Neoprene                     180°F (82°C)

Buna N                       180°F (82°C)

EPDM                         212°F (100°C)

Hytrel® (TPC-ET)             248°F (120°C)

Santoprene® (TPE)            212°F (100°C)

Viton® fluoroelastomer       248°F (120°C)

Teflon® (PTFE)               212°F (100°C)

* The maximum liquid temperature for metal and Kynar®-fitted pumps is determined by the elastomer (diaphragm material). Polypropylene pumps have a maximum liquid temperature of 180°F (82°C) regardless of diaphragm material. 

Air Supply Pressure (All Models)

20–100 PSI (1.4–7 kfg/cm)

Discharge Volume Per Cycle

Rubber diaphragm:   0.163 gallons (615 cc)

PTFE diaphragm:     0.143 gallons (539 cc)

Maximum Cycles Per Minute

Rubber diaphragm: 195

PTFE diaphragm: 195

Maximum Size Solid

1/16" (2.0 mm)

Maximum Dry Suction Lift

Rubber-fitted pump capability: 18-feet

Air Motors

Aluminum air motors are standard on metal pumps; glass-filled polypropylene air motors are standard on plastic pumps.

Optional air motors: Epoxy-coated, Teflon®-coated, Electroless Nickel Plate, aluminum and glass-filled polypropylene.


Notes: Hytrel®-fitted pumps include Buna N check balls & wetted o-rings. Santoprene®-fitted pumps include EPDM check balls & wetted o-rings.

Model Number Nomenclature

NDP-20 Performance Curve - Rubber

Rubber Diaphragm Performance Curve

To calculate performance for Santoprene® and Hytrel®-fitted pumps, use Rubber Diaphragm Curve.

NDP-20 Performance Curve - PTFE

PTFE Diaphragm Performance Curve

To calculate performance for Santoprene® and Hytrel®-fitted pumps, use Rubber Diaphragm Curve.

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