Related Manuals for DeZurik APCO CRF-100
Summary of Contents for DeZurik APCO CRF-100
- Page 1 APCO CRF-100, 100SA, 100SR RUBBER FLAPPER SWING CHECK VALVES D12007 Instruction May 2017...
- Page 2 Order parts from your local DeZURIK sales representative, or directly from DeZURIK. When ordering parts please choose from the following: If the valve has a DeZURIK APCO nameplate please include the 7-digit part number and 4-digit revision number (example: 9999999R000) located on the data plate attached to the valve assembly.
-
Page 3: Table Of Contents
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Table of Contents Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 4: Description
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Description A rubber flapper swing check valve consists of a valve body, a cover, and a flapper that is connected to the body and cover. The flapper swings away from the valve seat to allow flow in the forward direction, and returns to the valve seat when upstream flow is stopped to prevent backflow. -
Page 5: Maintenance
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Maintenance The CRF Rubber Flapper Swing Check Valve does not require routine maintenance, but should be included as part of the normal facility equipment inspections for any malfunction while under normal usage conditions. An inspection can be quickly performed as follows: Servicing the valve while the pipeline is under pressure can cause personal injury or equipment damage. -
Page 6: Operation
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Maintenance (Continued) 7. Carefully replace cover over the flapper so as not to move the flapper from its seating position, then replace cover bolts and tighten lightly while alternating the tightening of each cover bolt 180°... - Page 7 Buffer Rod Stroke 1-1/2 1-5/8 1-3/4 Contact DeZURIK 6. Shut-off pump and observe rate of closing. Based on this initial run, make necessary adjustments to the flow control valve and/or the internal cushion needle valve until satisfactory closing is achieved.
-
Page 8: Oil Filling Procedure
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Oil Filling Procedure Recommended Oils: Motor oil SAE 20, Mobil DTE 24, Castrol Hyspin AW 32. Step 1: Hydro-pneumatic accumulator tank (32) 1. Shut down pump. 2. Release pressure of hydro-pneumatic tank and remove pipe plug located on the side of the tank and also either the Pressure Gauge (32B) or Air Valve (32A). -
Page 9: Operation Of Internal Cushion
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Adjustment of Flow Control Valve (Continued) Figure 3 - Flow Control Valve Operation of Internal Cushion As illustrated below, the cushioning of a hydraulic cylinder stroke is obtained by trapping the exhaust fluid as the piston assembly nears the end of its stroke. -
Page 10: Spring Return Attachment Option
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Spring Return Attachment Option The Series 100SR is designed to minimize or eliminate slam in high head applications where rapid flow reversal causes standard swing check valves to slam. This valve has a 35° disc stroke as compared to conventional style swing check valves, which typically have between 80°... -
Page 11: Assembly Procedure
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Maintenance-Spring Return (Continued) Disassembly Procedure: 1. Isolate the Rubber Flapper Valve from the system, and then relieve pressure on the discharge side of the valve by loosening the cover bolts (4) and (5) approximately three full turns. -
Page 12: Drawings
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Drawings DESCRIPTION Body Cover Gasket (except Series 100R Valves) Cover Bolt Cover Bolt Rubber Flapper Flapper Plug Screw Plug Screw Nut Lower Spring Guide Upper Spring Guide Spring Cover Pivot Spring Bracket... -
Page 13: Troubleshooting
DeZURIK APCO CRF Rubber Flapper Swing Check Valves Troubleshooting Condition Possible Cause Corrective Action Cover leaks. Cover gasket is damaged. Replace cover gasket. Foreign matter caught between Fully open valve to remove Valve leaks excessively from flapper and seat. object. - Page 14 No claim for transportation, labor or special or consequential damages or any other loss, cost or damage shall be allowed. You shall be solely responsible for determining suitability for use and in no event shall DeZURIK, Inc. be liable in this respect.
Need help?
Do you have a question about the APCO CRF-100 and is the answer not in the manual?
Questions and answers