Style PSD Suction Diffuser Cast Iron (ASTM A 126 Class B) 125 lb. Flanged     Suction Diffuser APPLICATIONS The Keckley Style PSD mounts to the suction side of a pump in either a horizontal or vertical position. It is designed to remove any foreign matter that may be hazardous to the pump or other system components, while providing the proper flow conditions to the pump. Where space is limited, the Keckley Style PSD can be used as an elbow (in some cases a reducing elbow) with a built in strainer for easy maintenance and system performance. CONSTRUCTION The Keckley Style PSD Suction Diffusers are constructed from rugged cast iron castings that are machined to exacting specifications. These bodies have drilled flanges that are in accordance with ASME B16.1. FEATURES Reduces installation costs by replacing the strainer, elbow, and entry pipe on the suction side of the pump. Integral straightening vanes ensure uniform flow to the suction inlet of the pump. Minimal pressure drop (Oversized body & screen). Perforated stainless steel screen with a 20 mesh stainless steel removable start-up sleeve to help promote a cleaner more trouble free system. Bolted cover plate with O-ring seal – standard. (Knobs available upon request). Cast supporting pads on the diffuser body offer easy mounting of standard I.D. support foot. Tapping for inlet and outlet differential connections – Optional. Drain connection with plug – standard. WORKING PRESSURES– NON-SHOCK

 

Style TDV Triple Duty Valve Cast Iron (ASTM A 126 Class B) 125 lb. Flanged     Triple Duty Valve APPLICATIONS The Keckley Style TDV is a Triple Duty Valve primarily required on the discharge side of a centrifugal pump in a hydronic heating or cooling system. This valve functions as a shut-off valve, spring loaded silent check valve, and balancing valve. CONSTRUCTION The Keckley Style TDV Triple Duty Valves are constructed from rugged cast iron castings that are machined to exacting specifications. These bodies have drilled flanges that are in accordance with ASME B16.1. OPERATION The Keckley Style TDV has an automatic and silent operation. The disc will open when the line pressure is approximately ¼ PSI. As the line pressure approaches zero, the spring will close the disc to prevent flow reversal and water hammer. The flow through the valve can be adjusted from bubble tight shut-off to full flow by the acme rising stem. FEATURES The center guided soft seal disc ensures that there is no leakage. The rising stem design includes an adjustable position indicator for accurate disc positioning for throttling service. This unit comes with a standard gauge taps at both the inlet and outlet sides and a NPT drain plug. WORKING PRESSURES– NON-SHOCK