Account
Inquiry
You're dealing with fluid transfer systems where a standerd coupling just leaks when you break the line—that's what the double ball valve shut-off handles, letting you disconnect under pressure without losing half your hydraulic oil or gas.
We've got these in stainless, carbon steel, or brass with a zinc plate that actually holds up better than most in corrosive environments, and the round head male thread means you don't need a special tool to seat it properly.
They're ISO 7241-A compliant, but we also run them to DIN, GB, JIS, and Eaton/Parker specs—basically whatever your system calls for, and the pressure rating is high enough for most indutrial hydraulic loops, though we usually have stock, but confirm lead time if you need over 500 units or so.
Size range runs form DN6.3 to DN20, so you're covered for everything from small mobile equiment to bigger stationary rigs, and the double ball valve is what it does—it's a dead stop for leakage during connect and disconnect, which is pretty much the whole point.
1000-piece MOQ on custom thread sizes, but standard male threads (BSPP, NPT, etc.) we can ship in about 20 days or so—don't use these for high-viscosity fluids like heavy crude though, the ball valve mechanism can get sluggish.
We've got ISO, MSHA, and NQA ISO/TS16949 certs, so if your QA guy wants a COA, that's not a problem—the zinc coating is actually tougher than it looks, and we've seen these last 3-4 years in a foundry with constant dust exposure.
The series is rated as high-pressure grade, but the exact PSI varies by size. Typically, smaller diameters like DN6.3 handle higher pressures—up to 630 bar—while DN20 maxes out around 315 bar. Check the spec sheet for your exact size.
Our standard is male thread, but we can swap to female threads or adapters for custom orders. Just let us know the thread size and type you need when placing the order.
Yes, we can include mill test certificates for the stainless steel or carbon steel, plus our ISO and TS16949 certifications. Just request it on the purchase order—no extra charge.
For brass couplings, the MOQ is 500 pieces per size. If you need less, we can sometimes split a standard production run, but lead time may increase.
Keep them in a dry, indoor area with stable temperature—ideally below 50°C. Zinc plating resists light moisture, but avoid direct contact with water or chemicals. Unopened packaging keeps them good for at least a year.
Quick delivery and excellent packaging ensured the product arrived in perfect condition. The quality of the materials is immediately apparent; the couplings feel robust and well-machined. Customer service was responsive and helpful when I had a pre-purchase inquiry. Overall, a very satisfactory experience from order to receipt.
Needed a reliable set of couplings for a critical fluid transfer system upgrade, and these arrived just in time. The logistics were handled exceptionally well; the package was dispatched promptly and arrived ahead of the estimated schedule, which was a pleasant surprise given the current global shipping delays. Everything was securely packaged with no signs of damage during transit. Regarding quality, the components feel robust and precisely machined. The ball valve shut-off mechanism operates smoothly with a positive seal, and the overall construction appears to match the advertised high-pressure specifications. The service from the seller was also commendable. Communication was clear, and they provided all necessary documentation without needing to be prompted. While I haven't integrated them into the full system yet for long-term testing, the initial inspection and fit-check are very promising. The fact that they conform to the ISO standard gives added confidence. A very satisfactory purchase from a logistical, qualitative, and service perspective.
Smooth and efficient delivery was the first thing I noticed. The shipping was remarkably fast, and the package arrived securely without any damage. The overall logistics experience was hassle-free and met all expectations. Regarding the product itself, the build quality feels exceptionally robust and durable. The materials used seem top-notch, promising longevity and reliable performance under high-pressure conditions. The finish and precision of the components are impressive, indicating careful manufacturing. As for customer service, the support team was responsive and helpful when I had a pre-purchase inquiry. They provided clear information promptly, which made the ordering process straightforward. The entire transaction, from browsing to post-delivery, was handled professionally. This positive experience with the logistics, the apparent quality of the item, and the supportive service makes me confident in this purchase and the seller. Everything arrived as described and on time, which is always appreciated. I am very satisfied with this seamless process and the high standard maintained throughout.
Keenly impressed with the entire experience. The delivery was remarkably swift and the packaging was secure, ensuring everything arrived in perfect condition. The quality of the fittings feels robust and precisely machined, exactly as described. Customer service was proactive and helpful when I had a pre-purchase question. A very smooth and satisfactory transaction overall.
Wanted to share my thoughts on the recent order. The shipping was incredibly fast and efficient, arriving well ahead of the estimated delivery date, which was a pleasant surprise. Everything was packaged securely with no signs of damage during transit. As for the product quality, the materials feel robust and well-manufactured, giving a solid and reliable impression right out of the box. The machining on the fittings appears precise, and the finish is smooth, indicating good attention to detail during production. Regarding customer service, the communication was clear and helpful from start to finish. Any preliminary questions I had were answered promptly and professionally, making the entire purchasing process straightforward. Overall, this was a very positive experience from logistics to the final receipt of the item. The company seems to prioritize customer satisfaction, which is always appreciated. I would certainly consider ordering from them again in the future based on this smooth transaction.
Quick delivery and solid packaging. The product arrived earlier than expected, which was a pleasant surprise. The couplers themselves feel very robust and well-made. Communication from the seller was clear and helpful throughout the process. Overall, a very smooth transaction from start to finish. Would definitely consider purchasing from this supplier again for similar industrial components. The quality seems to match the description provided on the product page.
Quick delivery and excellent packaging ensured the product arrived in perfect condition. The quality of the materials is immediately apparent, feeling robust and well-machined. Communication from the seller was prompt and helpful throughout the process. Overall, a very satisfactory purchase experience from start to finish.
Just outstanding experience from start to finish! The delivery was incredibly fast, arriving much sooner than expected, which was a pleasant surprise. The packaging was secure and professional, ensuring everything arrived in perfect condition. As for the quality, the materials feel robust and well-crafted, giving me confidence in their durability for long-term use. Customer service was top-notch too; the support team was responsive and helpful, answering all my queries promptly. Overall, I'm thoroughly impressed and would highly recommend this to others.
Yay, the delivery was incredibly fast and arrived well ahead of schedule, which made my project timeline much smoother. The quality of the product is outstanding; everything feels durable and precisely manufactured, with no visible defects. Customer service was top-notch too—they responded promptly to my inquiries and provided helpful guidance. Overall, a fantastic experience from start to finish.
