WEH Connector TW18H

Manual Leak Test Quick Connector – Vacuum & Pressure Testing up to 350 bar

The WEH® TW18H is a high-performance quick connector designed for manual leak, pressure, and function testing of components with male threads – rated for vacuum up to 350 bar. It enables safe and tight connections in just seconds, without hand tightening or additional sealants.

With its simple hand lever actuation, connecting and disconnecting becomes effortless – saving significant time and cost on high-frequency testing tasks. The higher the test pressure, the tighter the connector locks for added safety and reliability.

Key Features:

• Manual actuation via ergonomic hand lever

• Vacuum to 350 bar pressure rating

• Tool-free, fast connection – no sealing tape required

• Durable stainless steel & anodized aluminium construction

• Time-saving & cost-effective for production testing

• WEH® Jaw Locking Mechanism ensures secure grip

• Custom versions available (longer, shorter, hydraulic, etc.)

Technical Specifications:

• Max. pressure: Vacuum up to 350 bar (5,000 psi)

• Temperature range: +5 °C to +80 °C

• Leak rate: ≤ 1 x 10 {³ mbar x l/s

• Actuation: H = Hand lever

• Materials: Stainless steel, anodized aluminium

• Seal material: NBR (Front seal)

Compatible Thread Types:

• ISO 8434-1 Tube Fittings: M10x1.0 to M22x1.5

• Whitworth Tube Thread (ISO 7/1 & DIN EN ISO 228-1): G1/2" to G3/4"

• NPT (ANSI/ASME B1.20.1): NPT 1/8" to NPT 1/2"

• SAE J512 (45° Cone), SAE J513

• SAE J514 JIC 37°: UNF 7/16"-20 to UNF 7/8"-14

Applications: Perfect for manual pressure testing of engine blocks, tanks, hydraulic cylinders, oil coolers, hoses, aggregates, and more. Suitable for use in automotive, manufacturing, and industrial production environments. Can also be integrated into semi-automated systems.