DP-F series

■ Seal Specification

Standard Seal A PVC seal that absorbs changes in the dimensions of the joint section for the fluorine resin pump.

■ Yamada’s Proprietary Design Air Switch Valve “C-Spool”
The air switch valve in the center section of the diaphragm pump is completely oil-free, so it does not require regular lubrication.
The operation assist using a C-spring suppresses stoppages during operation, and achieves stable operation.

◆ Air Switch Valve “C-Spool”

The C-spring Prevents Stoppages during Operation Achieves stable operation.	Equipped with a Reset Button Downtime due to pump stoppages in the case of wear of the air switch valve is kept to a minimum.

Completely Oil-free Both the air switch valve and the pilot valve that activates the air switch valve at the stroke limit are designed to be oil-free. Does not require regular lubrication.	Simple Replacement No need to disassemble the pump when replacing it.

Valve Shape and Model Number
Ball Valve		－	DP-10F (Material connection: Screw) (853620)	DP-10F (Material connection: Flange)(853622)	DP-20F (Material connection: Screw)(853621)	DP-20F (Material connection: Flange)(853623)	DP-25F (853601) *1	DP-38F (853606) *1
Flat Valve		DP-5F (853656)	Built to order, so please contact us.
Body Material
Center Body		PPS	Polypropylene (PPG)				HDPE
Pump Body		PTFE
Wetted Parts Material
Diaphragm PTFE		PTFE
Valve PTFE
Valve Seat PTFE
Valve Stopper PTFE
Center Disk PFA		PFA, SUS316 (Insert material)
Specifications
Nominal Diameter		1/4" (8 mm)	3/8" (10 mm)		3/4" (20 mm)		1" (25 mm)
Material Connection	Suction Port	Rc 1/4 (F)	Rc 3/8 (F) *2	JIS flange 10K 10A equivalent	Rc 3/4 (F) *2	JIS flange 10K 20A equivalent	JIS flange 10K 25A equivalent
	Discharge Port
Air Connection	Supply Port	Rc 1/4 (F) (W/air valve) *3					Rc 3/8 (F) (W/air valve) *3	Rc 1/2 (F) (W/air valve) *3
	Exhaust Port	Rc 3/8 (F) (W/internal silencer)	Rc 3/8 (F) (W/silencer)				Rc 3/4 (F) (W/silencer)
Air Supply Pressure		0.2~0.5 MPa *4					0.2~0.7 MPa *4
Maximum Discharge Pressure		0.5 MPa					0.7 MPa
Water Discharge/Cycle		13 mL *5	65 mL *5		150 mL *5		300 mL *5	700 mL *5
Maximum Flow Rate		11 L/min *6	27 L/min *6		54 L/min *6		64 L/min *6	95 L/min *6
Maximum Air Consumption		170 L/min (ANR)	250 L/min (ANR)		350 L/min (ANR)		900 L/min (ANR)	1500 L/min (ANR)
Maximum Size Solid		－ *7	Maximum 1 mm *7		Maximum 2 mm *7		Maximum 3 mm *7
Viscosity Limit		Maximum 0.5 Pa·s	Maximum 1 Pa·s		Maximum 2 Pa·s		Maximum 2.5 Pa·s
Temp Range	Ambient	0~70 °C
	Liquid Temperature	0~80 °C
Noise Level		71 dB	82 dB		85 dB		88 dB	90 dB
Suction Head Lift	Ball Valve	－	0.5 m		0.7 m		2 m
	Flat Valve	1.5 m	2 m		3 m		4 m
Net Weight		3.4 kg	6.7 kg	7.2 kg	14.6 kg	15.5 kg	32.0 kg	52.0 kg

*1 DP-25F and DP-38F are built to order, so please confirm the delivery.
*2 The DP-10F and DP-20F suction port and discharge port can be connected using a standard Rc screw and flange, as well as NPT screw and ANSI flange (special order).
*3 For the air to be supplied, use purified air filtered with a 1 μm filter, or nitrogen gas (N2).
*4 The maximum supply air pressure for a type with resin-made pump body will depend on the liquid temperature. Please check the liquid temperature - pressure correlation chart.
*5 The water discharge is provided as a rough approximation only. The discharge will differ depending on factors such as the liquid to be transferred and the piping conditions.
*6 The maximum flow rate is based on test data using purified water at room temperature (20°C). In addition, the water discharge will differ depending on the air pressure, head, etc., so refer to the performance curve for details.
*7 The flat valve type cannot handle slurry. • In the case of a pump made of resin, it is possible that its original performance cannot be demonstrated due to extreme temperature changes. In order to maintain performance, install the pump and store parts with care.

Download LiteratureCatalogs and Various Manuals