Stainless Steel Pipe Couplings : Half Coupling Vs. Full Coupling Structural Comparison

■ Core Differences Between Half Coupling and Full Coupling for Stainless Steel Pipe Couplings

1. Functionality Definition

Half Coupling Device:

• Mixed Connection Structure:

Port A: Configured with NPT/BSP standard thread or socket weld interface

Port B: Reserved for direct weld connection end

• Application Scenarios:

√ Pipeline system branch extensions

√ Pipe end sealing and blocking

√ Equipment interface modifications

Full Coupling Device:

• Symmetrical Connection Structure:

Both ports are configured with standardized interfaces (threaded/socket weld)

• Core Functions:

√ Straight pipe section connection

√ System pressure balanced transmission

2. Thread Parameter System

Stainless Steel Pipe Couplings use a standardized certification system:

▶ASTM Standard System:

NPSC: Straight pipe thread sealing type

NPT: Tapered pipe thread general type

▶BS British Standard System:

BSPP: Parallel pipe thread

BSPT: Tapered pipe thread

3. Manufacturing Process

Leadtek cast threaded pipe fittings are produced using medium-temperature wax removal casting technology; forged threaded pipe fittings are produced using fully automated forging technology; pipe threaded fittings are made from stainless steel welded or seamless stainless steel pipes.

■ Product Technical Parameters

▶Interface Configuration:

Full Coupling Type: Double-threaded full coupling / Double socket weld full coupling

Half Coupling Type: Threaded + direct weld composite

▶Thread Specifications:

R/Rc/Rp/G/PT/PF/BSPT/BSPP/NPT/NPSC

 

The Stainless Steel Pipe Couplings product range has passed ISO9001 quality system certification and can provide standard inspection reports according to engineering requirements. Special specifications support custom-made services based on drawings, with delivery cycles reduced to 7-15 working days.