Description
Part Description:
SAE 4-Bolt Flange Connections are commonly used on heavy mobile equipment and other high pressure applications. There are two SAE series of flanges – Code 61 Standard Series and Code 62 High Pressure Series. Code 62 Flanges have larger and thicker head diameters and use a different bolt size, bolt grade (8 instead of 5), and bolt hole pattern than Code 61 Flanges. Caterpillar or CAT Style Flanges feature a thicker 0.560″ flange head and require special flange halves but do conform to SAE Code 62 bolt hole patterns. All flange heads have a machined groove where the O-ring seats. The flange seal is achieved when the O-ring is compressed between the flange head and the smooth faced port. The flange head is secured to the port by two split flange clamp halves and four bolts. Other less common flanges include the Komatsu style flange in -10 size and the very rare French Poclain Style flange.
Pulsar adapters are for general hydraulic use. Pressure ratings are dependent on size and thread design. Whenever possible, elbows and tees are forged one-piece designs rather than braised from components. However, where manufacturing quantities are insufficient to warrant forging, parts are braised.
Note: Blank flange blocks can be used to seal flanged ends on a pressurized system. Once properly installed, using an O-ring, split flanges, and bolts, the system can be safely pressurized.
