SUN HYDRAULICS
BIU

$163.41 USD

SUN HYDRAULICS
Material:BIU
Summary:Manifold

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.

***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 BIU (Material Number: BIU) is a line mount hydraulic component designed for direct-acting, two-cylinder sequence applications. The body type is specifically engineered for line mounting without any additional interface requirements. It features two open cavities with a T2A cavity configuration, allowing for versatile integration into various hydraulic systems. The mounting specifications include a hole diameter of 0.34 inches (8.6 mm) and a through-hole depth, with two mounting holes available to secure the component in place effectively. Additionally, the port size is 3/8 BSPP, which facilitates standard connections within hydraulic circuits. The BIU model is constructed from 6061T651 aluminum, chosen for its strength, corrosion resistance, and cost-effectiveness compared to other alloys like 2024 aluminum. This material choice ensures durability in various environments without the need for anodizing, which can compromise fatigue life by introducing brittle surfaces that may lead to crack propagation under pressure. The BIU model's design focuses on providing reliable performance in controlling hydraulic sequences without unnecessary wear or corrosion concerns typically associated with anodized bodies.

Description

Body Type	Line mountLine mount
Interface	NoneNone
Body Features	2 cylinder sequence, direct acting2 cylinder sequence, direct acting
Mounting Hole Diameter	.34 in.8.6 mm
Mounting Hole Depth	ThroughThrough
Mounting Hole Quantity	22
Open Cavities	22
Cavity	T-2A
Port Size	3/8" BSPP3/8" BSPP

Show FAQ

How big is a drop of hydraulic oil?	There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
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%.

SUN HYDRAULICSBIU

SUN HYDRAULICS
BIU