Dorian Drake International products

SuperFlex disc diffuser units are available with premium quality EPDM membranes. The diffusers incorporate an external triple-check valve design to prevent intrusion of liquid or solids into the diffuser or air piping under normal on/off operating conditions.

Disc diffusers are constructed of glass-filled UV polypropylene and are suitable for deep tank (high-temperature) applications, as well as robust performance in cold weather. Available for pipe size diameters of 3-inch (91mm), 4-inch diameter (110 mm) for the 9-inch unit only. The 12-inch disc is only available in 3-inch diameter pipe size (90 mm). Advanced technology premium-quality membrane materials available in EPDM and other special polymer blends. Triple-check valve design, ideal for on/off applications, restricts entry of liquid/solids into piping. Resistant to fouling and plugging for low maintenance. Integral saddle mount provides ease of installation and maintenance. High-capacity membrane option available for maximum airflow and low operating pressure

The Universal Diffuser Mount (UDM) for fine bubble or coarse bubble disc diffusers is designed to accept a 3/4-inch NPT diffuser connection. The UDM is engineered for use with 2.4-inch through 8.6-inch O.D. plastic (PVC) or metal pipe. UDM is available in both vinyl & rubber materials of construction. Vinyl UDM (illustrated in the picture) allows for gluing to either PVC or ABS piping. Rubber cannot be glued. The UDM is to be used for mounting diffusers on the top of bottom of the lateral and is not recommended for sidewall mount of diffuser units. Special installation instructions are included with each order. It will cover special considerations and recommendations for various types of piping materials and wall thicknesses.

The Tube type diffuser unit is a fine pore, flexible membrane diffuser capable of providing a high level of oxygen transfer efficiency with maximum mixing capability. Standard configuration includes 3/4-inch stainless steel nipple installed. The stainless steel nipple can also be shipped loose, or a thru- mount connection can be provided for mounting units on square tubing. T-Series threaded units are also available in saddle mount style configuration for special design applications. Standard diffuser membranes are EPDM and PU, with Silicone and PTFE membranes available. Multiple lengths and diameters available. Membranes held in place with 304 SS clamps. 316 SS clamps available. For special applications.