TL71 3/8" NPT Thread 3/8 body Hydraulic Coupler Set ISO 7241-B Poppet Valve

TL71 3/8" BODY ISO 7241-B HYDRAULIC COUPLER SET (3/8" NPT THREAD)

The TL71 is an industrial-grade, heavy-duty hydraulic coupler set engineered for maximum reliability in demanding environments. Built to the ISO 7241-B standard, this set is designed to survive high-pressure spikes and harsh site conditions, making it an ideal choice for skid steers and agricultural implements that require a secure, long-lasting connection.

🗸 ADVANCED SEALING TECHNOLOGY: Unlike standard couplers, the TL71 features a PTFE (Teflon) back-up ring which prevents "seal washout"—a common failure where high-pressure fluid forces the seal out of its groove. Additionally, the captive valve seal ensures the poppet remains tightly seated, providing a superior leak-proof barrier when disconnected.

🗸 HEAVY-DUTY INDUSTRIAL RATING: Rated for over 3600 PSI, this coupler is constructed from high-strength steel. It is built to withstand the continuous stress of professional heavy-machinery operation, ensuring that your auxiliary lines remain leak-free under load.

🗸 ISO 7241-B COMPLIANCE: Meeting or exceeding international ISO 7241-B standards, these couplers provide guaranteed interchangeability with existing 3/8" poppet-style hydraulic systems across major brands like Bobcat, John Deere, CAT, and more.

🗸 FIELD-READY ERGONOMICS: The heavy knurled locking sleeve is designed for maximum grip, allowing operators to connect or disconnect lines easily, even with muddy hands or while wearing heavy safety gloves.

Specifications

Q: What is "seal washout," and how does the PTFE back-up ring stop it?

A: Seal washout occurs when high-pressure hydraulic fluid forces the rubber seal out of its internal housing, causing the coupler to leak internally or externally. The PTFE back-up ring acts as a rigid support that prevents the rubber seal from extruding under pressure, significantly increasing the coupler's lifespan in high-pressure systems.

Q: Why is a "captive valve seal" important?

A: In many standard couplers, the seal around the poppet (the valve that stops the oil) can drift or deform, leading to slow leaks. A captive seal is physically locked into the design, ensuring that every time the poppet snaps shut, it creates a perfect, consistent seal every single time.

Q: Are these suitable for high-vibration environments like demolition?

A: Yes. Because they are designed with heavy-duty construction and high-grade materials, they are built to handle the intense, constant vibrations of demolition attachments, where lighter-duty couplers would likely rattle loose or experience internal seal failure.

Q: Can I use these on my tractor?

A: The TL71 is compatible with any hydraulic system using the ISO 7241-B standard. It is commonly found on compact tractors, skid steers, and agricultural implements. Just ensure your machine’s ports utilize the 3/8" body size.