Not All Threaded Couplers Are Created Equal: 3 Designs, 3 Purposes

Have You Ever Thought Threaded Couplers Were All the Same?

Let’s be honest—we’ve all done it. You look at two threaded couplers, both rated around 6,000 PSI, and think, “They should work the same, right?”

Well, not quite.

Today, we’re diving into three new threaded coupler designs that prove just how different “threaded” can be when it comes to real-world demands. Whether you're dealing with residual pressure, vibration, or extreme load, there's a design that fits better—and performs smarter.

1. CB-SPS-3FM-B: The 10,000 PSI Powerhouse for Jack Systems

You’re setting up a portable hydraulic jack system—tight space, high pressure, and absolutely no room for failure. That’s where the CB-SPS-3FM-B shines.

What sets it apart?

•  10,000 PSI rated pressure—designed for heavy-duty jacks and manual pump tools.

•  ACME-threaded locking sleeve—ensures quick and secure connections under load.

•  NBR seals—reliable under pressure, cost-effective for service kits.

Think of it as the coupler equivalent of a bottle jack that just won’t quit.

2. CB-SPS-3F-BD: Your Go-To for Everyday Industrial Use

Need a coupler that just works? One that fits your construction gear, lifts, attachments, and doesn’t throw surprises your way?

The CB-SPS-3F-BD brings that sweet spot of performance and value.

Why it matters:

•  6,000 PSI rating—solid for most standard hydraulic circuits.

•  NPT/BSP ports—makes retrofitting easy in global markets.

•  Carbon steel body + NBR seals—durable and affordable.

It’s your “everyday hero” coupler—reliable across sectors, from agriculture to mobile equipment.

3. CB-RK-SPM: When Residual Pressure Meets Rough Terrain

We’ve all seen it—operators trying to connect lines in the field, only to meet resistance due to residual pressure. And don’t even get us started on vibration-related disconnects.

That’s exactly why CB-RK-SPM exists.

The standout features?

•  Pull-to-connect + thread-lock system—dual safety under pressure.

•  Residual pressure connection—no need to bleed off upstream pressure.

•  Anti-vibration locking ring—great for forestry and off-road applications.

•  Viton seals—built for heat and chemical resistance.

This isn’t just “another threaded coupler.” It’s one you can trust on a hillside, mid-shift, when things heat up.

So, What’s the Takeaway?

If you’ve made it this far, here’s the truth: threaded hydraulic couplers are no longer one-size-fits-all.

The good news? You’ve got options. Great ones.

Looking to Upgrade? Here’s Where to Start

Depending on your jobsite or system design, you can explore more threaded couplers here. You’ll find models built for compatibility with Parker, Faster, and other OEM lines.

Or, if you're working in residual pressure environments, start by checking out models like the CB-RK-SPM.

Need help choosing? Let us know—we help engineers and technicians spec the right coupler every week.