Hydraulic systems require high-quality, durable fittings to create a secure connection between hoses, and pipes. At Jason Industrial, we offer a selection of reliable hydraulic fittings for a range of applications.
Types of Hydraulic Fittings
To meet our customers’ varied needs, we offer a selection of full-crimp, “bite the wire”-style hydraulic couplings in our 12, 40, and 60 series.
SAE J514, 37° Flare
Also called a JIC 37° Flare, this connection features a 37° male seat that fits into the 37° female flare seat when attaching straight threads. Hydraulic systems are common applications for these fittings.
SAE J514 Straight Thread O-Ring Boss
While it features the same threads as the J514 37° flare, this connection uses an O-ring in lieu of the 37° flare. Captured with a tapered counterbore, the O-ring creates a strong seal when fitted with the female O-ring boss port.
SAE J1453 O-Ring Face Seal
This seal designed to be leak-free is capable of withstanding pressure levels up to 6,000 PSI on selected sizes. It features a male end with straight threads and an O-ring in its face that connects to the female seat’s flat face, all held together mechanically using a swivel female nut.
SAE J512, 45° Flare
These connectors’ seats and threads on select sizes are similar to those of J514 37° Flares, but with a 45° flare angle. Given their similarities, it’s important to positively identify them based on their flares and threads. Compatible with lower-pressure applications, common uses include brass adapters and automotive hydraulic systems.
American Pipe Threads (NPTF & NPSM)
A very common fitting type, these couplings use two sealing techniques. The male National Pipe Taper Fuel (NPTF), or Dryseal, tapered thread fits together with an NPTF tapered female typically serving as a port. The seal is formed by crushing the male and female threads together.
Alternately, male Pipe Thread Fuel (PTF), or short Dryseal, threads are shorter than NPTF varieties by one thread at the small, tapered end. Otherwise, their threads are alike. PTFE tape, thread sealant, and other sealing aids may be used in conjunction for a more effective seal.
Male fittings with a 30° seat are compatible with the 30° cone seat of a National Pipe Straight Mechanical (NPSM) thread swivel female fitting. It’s typically present on an adapter, and the threads mechanically secure the connection.
British Standard Pipe – BSP
BSP fittings are available in either parallel (BSPP) or tapered (BSPT) thread types. Creating a thread seal, male BSPT fittings are designed to connect with female BSPT fittings, which often serve as ports. It’s important to note that, while similar, British Standard Pipe (BSP) threads differ from American NPTF and NPSM threads and aren’t interchangeable.
JIS 30° Flare With Parallel Pipe Threads
These hydraulic connectors are comparable to American JIS 37° Flares but with a 30° seat instead and straight parallel pipe threads similar to those on BSPP fittings.
JIS Tapered Pipe Thread
This fitting serves as an identical alternative to the British BSPT tapered pipe thread except it lacks a 60° chamfer on the male end. Also, it’s only possible to seal when crushing the threads together in a compatible BSP or JIS port.
DIN 24° Cone
DIN 24° cone males include 24° seats, metric straight threads, and recessed counterbores equal to the accompanying coupling tube’s outside diameter (OD). They’re compatible with a variety of female cones. The female counterpart can be a 24° cone and O-ring, a universal 24°/60° cone, or a metric tube fitting.
Heavy (S) and light (L) series DIN couplings are available. To identify these couplings, you’ll measure their tube OD and thread size. Heavy series couplings have greater wall thickness and a smaller tube OD compared to the light series. Using a 12° seat angle gauge, you can determine the flare angle from the centerline of the connector.
DIN 60° Cone
This male cone only works with the female universal 24° or 60° cone connector. It features straight metric threads and a 60° seat, while the female counterpart has a universal 24° and 60° seat with the same thread type. You can use the 30° seat angle gauge to measure the flare angle from the connector’s centerline.
Hydraulic Fittings From Jason Industrial
For optimized hydraulic system functionality and safe operations, it’s important to select the right hydraulic hose fittings and connectors for your application. The Jason Industrial team has been assisting clients with reliable, high-quality hydraulic adapters and fittings since 1958.
Our hydraulic and industrial hose and accessory experts will be happy to help you find the ideal product solutions for your unique needs. Contact us today for more information, or request a quote for your preferred hydraulic fitting.
