✅ 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
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✅ 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)
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✅ 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
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✅ 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 |
G(parallel)R(tapered) |
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