SUN HYDRAULICS
VMD

$572.05 USD

SUN HYDRAULICS
Material:VMD
Summary:Manifold

Quantity in stock: 0

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***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics VMD (Material Number: VMD) is a versatile bar manifold designed for hydraulic systems, featuring an ISO 05 XY US interface. This 2-station manifold operates on a parallel circuit with an integrated relief cavity, making it suitable for applications requiring balanced flow distribution and pressure relief capabilities. The manifold body is constructed from 6061-T651 aluminum, known for its strength, cost-effectiveness, and excellent corrosion resistance, ensuring durability in various environments. It includes four mounting holes with .375-16 UNC 2B threads and a depth of .75 inches (19 mm), providing robust support for secure installation. The VMD model accommodates one open cavity and utilizes a T-3A cavity type with port sizes of 3/4 NPTF. While Sun Hydraulics does not anodize their aluminum manifolds due to considerations like cost and potential impact on fatigue life, the material used provides inherent corrosion resistance. This product is ideal for users seeking reliable performance in hydraulic systems operating within pressures up to 3000 psi (210 bar).

Description

Body Type	Bar ManifoldBar Manifold
Interface	ISO 05 - X&Y (US)ISO 05 - X&Y (US)
Body Features	2 Station, Parallel circuit with relief cavity2 Station, Parallel circuit with relief cavity
Mounting Hole Thread	.375-16 UNC - 2B in..375-16 UNC - 2B in.
Mounting Hole Depth	.75 in.19 mm
Mounting Hole Quantity	44
Open Cavities	11
Cavity	T-3A
Port Size	3/4" NPTF3/4" NPTF

Show FAQ

Why does Sun use 6061 aluminum?	6061-T651 is relatively strong, relatively inexpensive, difficult to machine, readily available in all shapes and sizes and very corrosion resistant. 2024 is stronger and machines beautifully, but is expensive and falls to pieces in a corrosive environment.
Why doesn't Sun anodize their aluminum bodies?	Reasons to anodize: To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion. Appearance (color). The 2 colors that would appeal to Sun would be blue or black. Unfortunately these are the colors that are hardest to do consistently. To provide a hard wear surface. Sun does not make parts-in-body valves. The manifold is just plumbing. We don't need a wear surface. Because everyone else does it. Bad reason. Reasons to not anodize: Cost. It's another process. Logistics. When you make tens of thousands of manifolds a month and you anodize hundreds, it's a problem. Consistency. See above. Stamping. After a body is anodized you cannot do any more stamping without making a mess.Inspection. Have you ever tried to look for burrs in a black anodized body? It's the old blackboard factory at night scenario. Torque. You will experience an increase in breakaway torque when removing items from an anodized manifold. Fatigue life. This is the best reason to not anodize. Fatigue failure is a very complex phenomenon. What it takes to initiate a crack is difficult to predict. What it takes to propagate a crack is readily defined. Anodizing produces a very thin, very hard, and very brittle surface on aluminum. The first time you pressurize an anodized aluminum manifold you have initiated fatigue cracks. Whether or not the stress is enough to propagate the cracks is a matter of pressure and manifold geometry. Anodizing an aluminum manifold grossly reduces the fatigue life by anywhere from 20% to 50%.
How big is a drop of hydraulic oil?	There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

Additional Resources

Notes:

For mounting bracket information, see catalog or drawing 991-021-***
Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.

SUN HYDRAULICSVMD

Additional Resources

SUN HYDRAULICS
VMD