Dmda-Man Original Sun Hydraulic Directional Spool Valve

• Function: Balance, Pressure Regulating, Reversing, Flow Control
• Installation: Cover Plate
• Drive: Electric Hydraulic
• Type: Directly Operated Type
• Material: Stainless Steel
• Warranty: 12 Months
• Model NO.: DMDA-MAN
• After-Sales Service: Online Technical Support
• Applications: Industrial Usage
• Transport Package: Standard Carton or Wooden Package
• Specification: Standrad Size
• Trademark: SUN
• Origin: China
• HS Code: 8481802190
• Production Capacity: 50000PCS/Year

Product Description

Original SUN DMDA-MAN Cartridge Valve Hydraulic Valve
 

This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve.

• The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
• Spools B and R are closed in the transition between their two positions. This results in a higher performance limit at the expense of lower capacity. When used as pilot controls, where capacity is not a factor, the closed transition will provide faster and more consistent response times.
• This valve is direct actuated and requires no minimum hydraulic pressure for operation.
• Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
• On models equipped with the D or L control, the detent mechanism in the manual override is meant for temporary actuation. The D, L and T manual control assemblies have a mechanical life expectancy of approximately 7,000 cycles.
• This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.
• Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.
• Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

 

Technical Data  

Cavity	T-11A
Series	1
Capacity	12 gpm
Maximum Operating Pressure	5000 psi
Maximum Valve Leakage at 110 SUS (24 cSt)	5 in³/min.@3000 psi
Manual Override Force Requirement	5 lbs/1000 psi @ Port 1
Manual Override Stroke	.10 in.
Response Time - Typical	50 ms
Switching Frequency	15,000 max. cycles/hr
Solenoid Tube Diameter	.75 in.
Valve Hex Size	7/8 in.
Valve Installation Torque	30 - 35 lbf ft
Model Weight	0.74 lb.
Seal kit - Cartridge	Buna: 990411007
Seal kit - Cartridge	EPDM: 990411014
Seal kit - Cartridge	Viton: 990411006
Seal and nut kit - Coil	Viton: 990770006

Detailed photos
 

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