FITSCH’ main products is Fittings for hydraulic tube/hose and various industrial usage; Assembly of hydraulic hose and tube fabrication; Accessories such as clamps for hose and tube, non-return valve, hydraulic quick coupling, testing point coupling etc, we also offer custom fittings for customer’s OEM demand. Our product can be found on and around everything that moves such as fluid and gas handling, hydraulics, pneumatic etc.
Tube End Connection Types:
Port End Connection Types:
Shapes of Hydraulic Fittings:
Hose End Connection Type:



What is Hydraulic Flange Fittings

It is o-ring flange type hydraulic fittings, various type connections from SAE Flange ends to Hydraulic Fittings ends, between hydraulic hose and tube/pipe where flexibility is need, especially suited for high pressure and larger sizes and assembly at a reasonable assembly torques. SAE flange ends to connect the 4 bolt flange port conforming to SAE J518 and ISO 6162-1 and -2. Hydraulic fittings ends meet DIN 2353 24 degree cone tube connector, JIC 37 degree flare tube connector, SAE J1453 O-ring face seal tube connector, BS 5200 60 degree cone tube connectors.

How Many Types Of Hydraulic Flange Fittings

For assembly purpose types, one is 4 bolt hydraulic fittings which is designed with square flange block fittings and bolt holes, a sealing by assembly two ends of o-ring grooves and flat face(no groove); Another one is split flange hydraulic fittings, they need split flange halves to clamp the flange head of SAE flange hose or tube fitting by 4 bolts.

For working pressure purpose SAE J518 types, there are SAE code 61 flanges(ISO 6162-1 flange) and SAE code 62 flanges(ISO 6162-2 flange). SAE code 61 flange dimensions is designed with 3.5 Mpa(35bar or 350Kpa) low pressure to 35 Mpa(350bar or 3500Kpa), SAE code 62 flange dimensions is designed with 42 Mpa(420bar or 4200Kpa).

What Is Hydraulic Flange Fittings Size Chart or Dimensions?

Hydraulic Flange Fittings Size Chart or Dimension

Complexities of Hydraulic Flange Fittings in Depth

Hydraulic flange fittings are crucial components in the world of hydraulics, handling high pressures and facilitating connections between different parts of the system. Among these, the o-ring flange type hydraulic fittings are widely used because of their adaptability and resilience. They have a range of connections, extending from SAE Flange ends to Hydraulic Fittings ends, apt for areas demanding flexibility.

When considering assembly types, two main kinds of hydraulic flange fittings are apparent. First type features the 4-bolt hydraulic fittings. Their design showcases square flange block fittings with bolt holes, coupled with assembly ends of o-ring grooves and a flat face, devoid of a groove. The second type, dubbed split flange hydraulic fittings, are a bit different. To fasten the flange head of SAE flange hose or tube fitting, they use split flange halves clamped by 4 bolts.

In terms of working pressure, the SAE J518 hydraulic flange fittings are distinguished into SAE code 61 flanges and SAE code 62 flanges. Both have their distinct pressure ratings. The SAE code 61 flanges handle from 3.5 Mpa (equivalent to 35bar or 350Kpa) to 35 Mpa (350bar or 3500Kpa). On the other hand, the SAE code 62 flanges are designed for pressures reaching up to 42 Mpa (420bar or 4200Kpa). "

Overiews of Hydraulic Flange Fittings


Fitsch has been in the business of hydraulic tube fittings, hydraulic adapters, hose fittings, hydraulic flanges, industrial fittings and hydraulic accessories for over 20 years, offering all our customer competitive products and supplies from our local industry manufacturers union.    



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