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Lubrication FreeDo Not Lubricate

Part No. 713180

Part No. 771132

Part No. 771868

Part No. 771244

Part No. 713148

Guide on Top,Valve Seaton Bottom

Model Number

Air Fluid FNPT ANSI #150 Flange Aluminum Poly SS PVDF Cast

Iron Acetal CR NBR EPDM TPE TPO FPM PTFE

Out Chambers Center Rods Manifolds

Out Chambers Tie-rod Nuts Center Rods Manifold Bolts

NDP-5 1/4" 1/4" X X X X X X X

Metal 25 lbs-ft 43 lbs-ft 15 lbs-ft

NDP-20 Metal 8 lbs-ft N/A 22 lbs-ft 8 lbs-ft

DP-10 1/4" 3/8" X X X X X X X X X X

Plastic 22 lbs-ft 36 lbs-ft 15 lbs-ft

NDP-20 Metal (T,H,S) 10 lbs-ft N/A 29 lbs-ft 15 lbs-ft

DP-15 1/4" 1/2" X X X X X X X X X

Metal (T,H,S) 29 lbs-ft 43 lbs-ft 15 lbs-ft

NDP-20 Plastic 8 lbs-ft 8 lbs-ft 22 lbs-ft N/A

NDP-15 1/4" 1/2" X X X X X X X X X X X X

Plastic (T,H,S) 25 lbs-ft 36 lbs-ft 15 lbs-ft

NDP-20 Plastic (T,H,S) 10 lbs-ft 9 lbs-ft 29 lbs-ft N/A

NDP-20 1/4" 3/4" X X X X X X X X X X X X NDP-25 Metal 8 lbs-ft N/A 22 lbs-ft 8 lbs-ft

NDP-25 3/8" 1" X X X X X X X X X X X X X X NDP-25 Metal (T,H,S) 15 lbs-ft N/A 29 lbs-ft 25 lbs-ft

NDP-40 1/2" 1-1/2" X X X X X X X X X X X X X X NDP-25 Plastic 8 lbs-ft 8 lbs-ft 22 lbs-ft N/A

NDP-50 3/4" 2" X X X X X X X X X X X X X X NDP-25 Plastic (T,H,S)

T = PTFE, H = TPEE, S = TPO

15 lbs-ft 9 lbs-ft 29 lbs-ft N/A

NDP-80 3/4" 3" X X X X X X X X X X X X X

Torque Values NDP-40 thru NDP-80

Torque Values NDP-20/25 Metal Center BodyPort Sizes Connection Types Wetted Materials Elastomer Materials

Out Chambers Center Rods Manifolds

• Handles a wide variety of fluids with high solids content: No close �tting or rotating parts so liquid with high solids content and /or size can be easily pumped.

• Self Priming: The Yamada pump design (incorporating internal check valves) allows for high suction lift even at dry start-up and with heavier �uids.

• Ability to run dry: No close �ttings or sliding parts are at risk–the pump can run dry without damage.

• Variable flow rate and discharge pressure: Yamada pumps will run at any setting within their operating range simply by adjusting the air inlet pressure and system conditions. One pump can �t a broad spectrum of applications.

• Portable / Simple Installation: Yamada pumps can easily be toted to the application’s location. Simply connect your air supply line and liquid lines, the pump is ready to perform. There are no complex controls to install and operate.

• Dead Head: Because the discharge pressure can never exceed air inlet pressure, the discharge line can be closed with no damage or wear. The pump will simply slow down and stop.

• Shear sensitive: The gentle nature and minimal parts contact with the liquid makes Yamada pumps an excellent choice for shear sensitive �uids.

• Explosion Proof: Yamada pumps are operated by compressed air, in turn they are considered intrinsically safe.

• Submersible: If external components are compatible –Yamada pumps can be submerged in the liquid by simply running the exhaust line above the liquid level.

• Pumping efficiency remains constant: There are no rotors, gears, or pistons, which wear over time and lead to the gradual decline in performance/�ow rate.

Ten Intelligent Reasons to Specify YamadaAir-Powered Double Diaphragm Pumps

Install Direction Install Direction

Lube Free Seal Ring

Out Chamber

Air Valve

Valve Seat

Tie RodManifold

Pilot Valve with Non-lube Static O'Ring

Removable Sleeve

316SS Center Rod

Nylon Throat Bearing and V-Packing

V-Packing Install Direction

Sleeve Remover forNDP-40/50/80

Spool Remover & Wrenchfor NDP-5/15

Wrench for NDP-40/50/80Nonmetallic

Wrench for NDP-20/25Nonmetallic

Bushing & Sleeve Removerfor NDP-15 thru NDP-80

NDP-5 65 lbf-in 65 lbf-in 65 lbf-in

DP-10 122 lbf-in 122 lbf-in 105 lbf-in

DP-10 Plastic 105 lbf-in 122 lbf-in 70 lbf-in

DP-15 105 lbf-in 122 lbf-in 105 lbf-in

NDP-15 122 lbf-in 122 lbf-in 105 lbf-in

Torque Values NDP-5/15 and DP-10

Torque Values NDP-20/25 Plastic Center Body

Retain bolts for the out chamber

Retain bolts for the manifold

BPC, BPN, BPE, BPV 8 lbf-ft {10 N m} 8 lbf-ft {10 N m}

BPT, BPH, BPS 10 lbf-ft {13 N m} 9 lbf-ft {12 N m}

BPC, BPN, BPE, BPV, BE, BVV 8 lbf-ft {10 N m} 8 lbf-ft {10 N m}

BPT, BPH, BPS, BVT, BVH 15 lbf-ft { 20 N m} 9 lbf-ft {12 N m}

NDP-20-PP

NDP-25-PP