How do you select hydraulic cylinder seals?

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How do you select hydraulic cylinder seals?

The following most common application considerations are nearly always required when selecting hydraulic seals:

  1. fluid pressure range, the range of operating fluid system pressure, as well as frequency and severity of pressure peaks.
  2. temperature range,
  3. speed,
  4. fluid media,
  5. hardware dimensions,
  6. application of the cylinder,

How do I choose a piston seal?

The choice of piston seal is decided by the way in which the cylinder operates. For a cylinder which is exclusively single-acting, capable of sealing dynamic pressure from one side (unidirectional), it is always best to choose the type of seal designed to provide optimum sealing qualities for single-acting functions.

How many types of hydraulic cylinder seals are there?

To contain the pressurized fluids in a hydraulic cylinder system and keep it in motion, a complex configuration of high-performance seals in two basic categories are required: (1) static seals and (2) dynamic seals (supported by guide rings).

How are piston seals measured?

  1. Step 1: Measure Bore Diameter.
  2. Step 2: Measure Piston Diameter.
  3. Step 3: Measure Groove Depth.
  4. Step 4: Measure Groove Width / Height.

What is function of hydraulic seals?

A hydraulic seal is a relatively soft, non-metallic ring, captured in a groove or fixed in a combination of rings, forming a seal assembly, to block or separate fluid in reciprocating motion applications. Hydraulic seals are vital in machinery.

How do piston seals work?

A piston seal works by containing pressure on one side of a piston without leakage. This allows maximum mechanical effort to be applied to moving the piston along the bore of a cylinder. Piston seals are intended to prevent leakage past the piston and therefore maximise the efficiency of a system.

What are two types of hydraulic seals?

Types of Hydraulic Seals

  • Piston Seals. Piston Seals guarantee liquid or other media do not pass round the piston due to the system pressure pushing the piston down the cylinder amid a stress course.
  • Rod Seals.
  • Wiper Seals.
  • Wear Rings.

How is rubber seal measured?

When measuring a circular gasket, think of it as a clock. Use a tape measure or ruler and measure across the gasket from the 9:00 position to the 3:00 position. Measure the inside edges for the I.D. and the outside edges for the O.D. Next, count the number of BH (Bolt Holes) around the face of the gasket.