Unveil High-Performance Hydraulic Solutions: JIC, DIN, BSP & ORFS Fittings for Leak-Proof Industrial Connections

1. JIC (Joint Industry Council)fitting

Thread Type: UNF (Unified Fine Thread), inch-based

Seal Type: 37° flare metal-to-metal seal

Typical Sizes: 7/16-20 UNF, 9/16-18 UNF, 3/4-16 UNF, etc.

Applications: Widely used in North America, Japan, and construction equipment

Features:

High pressure resistance

Easy to assemble and reassemble

Excellent for hydraulic systems

Example:

JIC 1/2= 3/4-16 UNF thread with 37° male cone

2. DIN (Deutsches Institut für Normung)fitting

Standard: German standard fittings (e.g., DIN 2353, DIN 3852)

Thread Type: Metric thread

Seal Type: Cutting ring, O-ring, or 24° cone seal

Applications: Very common in European markets (especially Germany, Italy)

Features:

Compact design

Excellent for medium to high-pressure systems

Common in industrial equipment and machinery

Example:

DIN 24° cone + M22x1.5 male thread (metric)

 

3. BSP (British Standard Pipe)fitting

Thread Types:

BSPP (G thread): Parallel thread with seal using O-ring or washer

BSPT (R thread): Tapered thread that seals on the thread itself

Applications: UK, Middle East, Australia, Southeast Asia

Features:

Used in medium-pressure hydraulic and low-pressure gas systems

Be careful to distinguish between BSPP and BSPT

Example:

BSPP 1/2= G1/2= 1/2-14 parallel thread

 

4. ORFS (O-Ring Face Seal)fitting

Standard: SAE J1453

Thread Type: UNF

Seal Type: Flat face + O-ring

Applications: Heavy-duty machinery, mining equipment, Caterpillar, John Deere, etc.

Features:

Excellent sealing for high-pressure applications

Vibration-resistant

Very low risk of leakage

 

Example:

ORFS 1/2= 3/4-16 UNF + O-ring face

Type

Thread

Seal

Typical Region

Notes

JIC

UNF

37° metal-to-metal

USA, Japan

Common in construction equipment

DIN

Metric

24° cone / O-ring

Europe (Germany)

Industrial hydraulic systems

BSP

GparallelRtapered

Washer or thread seal

UK, Middle East, Asia

Watch for BSPP vs BSPT

ORFS

UNF

O-ring face seal

USA, global OEM

Best sealing under high pressure


Post time: Jul-04-2025