Design News for Mechanical and Design Engineers

Colder offers a variety of ancillary components to enhance your fluid handling system. From fittings and luers to PTF nuts and dust caps, we carry the accessories and replacement parts you need, when you need them.

Even with thousands of standard quick disconnect couplings available, we know you still may not have found the precise part you need. That's why, for more than 25 years, CPC's Application Engineering Team has worked with customers around the world to design custom coupling solutions to solve their specific problems and improve their products' performance. CPC has solid modeling capabilities, prototype equipment, an expansive test lab, and thousands of solutions. Combine that with our years of experience and a "can do" attitude, and there is no need for you to design your solution alone.

Colder's chrome-plated brass couplings are offered in 1/8" and 1/4" nominal flow. These couplings are designed for durability and an attractive appearance. Colder also offers aluminum couplings in 3/8" and 5/8" as well as nickel-plated zinc die-cast couplings in 1/4" and 3/8" nominal flow. These couplings are designed for high performance and high flow.

The innovative design allows a quick and easy sterile connection between biopharmaceutical processing equipment and disposable bag and tube assemblies. Media can be safely transferred without the cleaning and validation concerns associated with reusable components.

Colder's plastic couplings cover a wide range of general-purpose applications. They are available in 1/8", 1/4", 9/32" and 1/2" nominal flow. One-hand connection and disconnection and integral terminations make the plastic coupling the choice for ease of use and manufacture

Closed System Technology Drives the Trend Toward Safer, More Cost-Efficient Chemical Dispensing. In dozens of industries and in millions of applications around the world, dangerous chemicals are transferred from their original shipping containers into smaller jugs or buckets or applied to other end-use processes. Historically, the predominant dispensing method in many of these applications has been through an open system where the liquid is poured out of the container. With a poured system, the container is often flipped on its side and the liquid is poured into a secondary container. The user then just carries the bucket to wherever it needs to go. A mental image of this technique quickly reveals its potential dangers and inefficiencies.

Different types of screw threads have evolved for fastening, and hydraulic systems. Of special concern are plastic-to-metal, taper/parallel threaded joints in hydraulic circuits. A discussion and recommendations are provided to create an awareness of different types of threads and how they are used.

Traditionally, non-spill quick disconnect couplings have served the high pressure, industrial hydraulic market. Existing commercial designs are characterized by minimal air inclusion at connection and low spillage at disconnect. Common coupler package materials include machined brass, zinc-coated steel and stainless steel. Recent design innovations and improvements include advances in valve design, optimized flow area calculations and isolation of the valve actuation springs from the fluid flow path. These developments have led to new low pressure, thermoplastic quick disconnect couplings incorporating flush face non-spill valve technology.

With so many connection options, it can often be an overwhelming task to decide which connector is best suited for an application. By understanding your application requirements and selecting the correct connection type, you will have better performance and sealing results.

The tests to determine the flow coefficient values for CPC couplings were conducted under laboratory conditions with water at 70ºF (21ºC). The performance of the couplings in the user's specific application may vary.