CAM-CENTRIC Plug Valves.

Transcription

1 CAM-CENTRIC Plug Valves Committed People Innovative Solutions

2 FEATURE HIHLIHTS B Eccentric Action D Friction Collar Seat is Offset from Center Line of the Shaft Nylon Bearing Open Memory Stop Center Line of Plug Shaft Friction Adjustment Closed Stop E F H I C A J Lower Bearing Journal I rit Seal H Thrust Bearing K Radial Bearing 2 A. Non-Clog Design The unrestricted flow area combined with smooth streamline contouring allows passage of large solids to prevent potential clogging and provide low headloss. B. Eccentric Action Provides positive shut off with wear resistant action and low torque. C. Full Top Access Cover Provides accessibility for inspection without removal of the valve from the line. D. Friction Collar with Memory Stop Secures valve plug in any position and includes a nylon bearing for ease of operation. E. V-Type Packing Field adjustable and replaceable without removal of worm gear or motor actuators. F. Removable POP Shims Packing Overload Protection Shims protect packing by preventing overload during field adjustment.. Radial Bearings Heavy Duty, T316 Stainless Steel, Permanently Lubricated. H. Thrust Bearing Upper: PTFE - Provides ease of actuation during operating conditions. Lower: Stainless Steel - Prevents wear to plug and rit-uard. I. rit-uard Shaft Seal The Val-Matic Exclusive rit-uard shaft seal extends packing and bearing life by minimizing contact with abrasive line media. J. Seat Welded overlay of 95% pure nickel applied directly to the body using a state-of-the-art robotic welding system for a consistent, high quality weld. Machined and ground to a smooth finish. K. Plug Fully rubber encapsulated molded plug eliminates exposed surfaces preventing corrosion and delamination.

3 Proven Design With installations worldwide, the Val-Matic Cam- Centric Plug Valve has proven itself as the preferred valve for wastewater, industrial waste and process applications. The Cam-Centric Plug Valve is a ¼ turn eccentric plug valve allowing cost effective, low torque actuation for pump control, shut-off and throttling service. The valve s eccentric action rotates the plug in and out of the seated position with minimal contact, thereby preventing high torque and wear to the valve seat and plug. The combination of the eccentric action, stainless steel bearings, rit-uard seals and heavy duty nickel seat assures long life with minimal maintenance. Preferred Features The Cam-Centric Plug Valve features a shaft sealing system that utilizes V-Type packing, a packing follower and a rit-uard seal for ease of maintenance and to reduce wear. The rit-uard seals reduce wear by preventing grit and media from reaching the bearings and packing to prevent plug lock up. The seals are standard in both the upper and lower journals (Figures 1 & 2). To prevent the packing from being over tightened, the shaft seal incorporates POP (Packing Overload Protection) Shims. The packing is easily adjusted by removing the POP shims as necessary utilizing the pull tab feature (Figure 1). Adjustment or FEATURE BENEFITS are protected from grit related wear by the rit- uard seals (Figures 1 & 2). rit-uard Thrust Bearing Radial Bearing Figure 2. Lower Bearing Journal The Cam-Centric Plug Valve utilizes a totally encapsulated molded plug to protect exposure to corrosion and delamination in severe abrasive applications. LAND FOLLOWER RIT-UARD V-TYPE PACKIN POP SHIMS WITH PULL TABS RADIAL BEARIN Figure 3. Robotic welding of nickel seat The valve seat is a welded overlay of 95% pure nickel applied directly to the body on a machined surface using a state-of-the-art robotic welding system for a consistent, high quality weld (Figure 3). THRUST BEARIN Figure 1. Upper Bearing Journal replacement of the V-Type packing can be done without removal of the gear, motor or cylinder actuator. The Cam-Centric bearing package consists of permanently lubricated, T316 stainless steel radial bearings in both the upper and lower journals. The upper thrust bearing is made of Teflon and the lower thrust bearing is T316 stainless steel. The bearings Advanced Technology Incorporating the latest in valve technology assures a high-quality valve that will provide long service. The design process utilized solid Modeling and Finite Element Analysis (FEA) of the key structural components. Flow and torque data was derived from flow tests, mathematical models and Computational Fluid Dynamics (CFD). Manufacturing technology uses automated process control in the foundry and ISO 9001 controlled manufacturing processes. Every valve is tested in accordance with AWWA C517 and MSS SP- 108 on automated hydraulic test rigs with gauges calibrated per ISO standards. 3

4 INSTALLATION DIMENSIONS DIRECT NUT OPERATED FLANED, MECHANICAL JOINT, THREADED END CONNECTIONS + - 3mm S E A T F + - 3mm SEAT END F A3 -+ 3mm A1 (FL.) A2 (MJ) A3 (THREADED) WRENCH HEAD 1 SCHEDULE 40 PIPE OPEN Chain Lever L OP E N OPEN MEMORY STOP OPEN L REVERSE PRESSURE DIRECT PRESSURE SEAT END WRENCH HEAD 1 SCHEDULE 40 PIPE CLOSE STOP Hand Lever Direct Nut VALVE SIZE FLANED MODEL NO. MJ MODEL NO. THREADED MODEL NO. HANDLEVER MODEL NO. CHAINLEVER MODEL NO. ACTUATOR P RATIN PSI DIMENSIONS (mm) A1 A2 A3 F REVERSE DIRECT A1 A2 A3 F L RTL Incl RTL Incl RN RTN 4L 3CH RN 5903RN 5803RTN 4L 3CH RN 5904RN - 4L 4CH RN 5906RN - 8L 6CH 50* 100* RN 5908RN - 8L 8CH 50* 100* NOTES: 1. Flange drilling conforms to AS4087 Class Mechanical Joint (MJ) Ends conform to ANSI / AWAW C110/A Threaded End conforms to ANSI/ASME B * Worm gear actuators recommended for higher pressure ratings. 4. Handlevers (i.e. 3L) Chainlevers (i.e. 3CH), and Chain (1CN) are ordered separately. 5. Consult factory for 100% ported valve dimensions. 4

5 SEAT END INSTALLATION DIMENSIONS WORM EAR ACTUATOR SELECTION FLANED, MECHANICAL JOINT END CONNECTIONS 180 O 270 O K3 K2 K1 NUT HW CHW * SPUR EAR H OPEN 90 O STANDARD POSITION J NOTES: SEAT END 1. Flange drilling conforms to AS4087 class Mechanical Joint (MJ) ends conform to ANSI/AWWAC110/A Consult factory for 100% ported valve dimensions. REVERSE PRESSURE F DIRECT PRESSURE Valve Actuator P Ra ng, PSI Dimensions, mm. Size Flanged Model No. MJ End Model No. Reverse Direct A1 A2 F H J K1 K2 K R/7A R/8A R/7A R/8A R/7A R/8A R/7B R/8A R/7C R/8C R/7D R/8D R/7C R/8C R/7D R/8D R/7E R/8E02 * R/7F R/8E02 * R/712 * 5914R/8F02 * R/7E R/8E02 * R/7F R/8E02 * R/714 * 5916R/8F02 * R/7J R/8J02 * R/7K18 * 5918R/8J02 * R/7L24 * 5918R/8K02 * R/7M18 * 5920R/8J02 * R/7N24 * 5920R/8J02 * R/7P30 * 5920R/8K02 * R/7M24 * 5924R/8J02 * R/7N30 * 5924R/8J02 * R/7P36 * 5924R/8K02 * R/7R24 * 5930R/8R02 * R/7S30 * 5930R/8R02 * R/7T36 * 5930R/8S02 * R/7S30 * 5936R/8S02 * R/7V24 * 5936R/8S02 * R/7W30 * 5936R/8T02 * * Indicates actuators with spur gears. * NOTE: laylength interchangeable with sluice valves in 80 thru 300mm * Available upto 1200mm A1 (FL.) A2 (MJ) 5

6 MATERIALS OF CONSTRUCTION PRESSURE/TEMPERATURE RATINS COMPONENT Body, Cover and Plug Seating Surfaces Coating Fasteners MATERIALS OF CONSTRUCTION STANDARD Cast Iron ASTM A126 Class B *Welded Nickel Overlay Resilient Plug Facing Internal & External Epoxy Coated 316 SS NOTE: Val-Matic o ers a variety of optional materials, coatings and linings. Please consult factory for available options. 65mm and larger. MAXIMUM NON-SHOCK PRESSURE-TEMPERATURE RATIN, PSI TEMPERATURE F / VALVE SIZE 25mm - 300mm 350mm - 900mm Hydrostatic Test Pressure NOTES: 1. Above ratings are valve ratings. Actuator ratings (shut-o di erential pressure) are included under Valve Dimensions and Actuator Selection on page as service applications require a worm gear, cylinder or power actuator. Valve orders for gas service should specify the application. 3. Worm gear actuation is recommended for all buried service valves. ACCESSORIES Space limitations and applications such as submerged service often require special accessories. In addition to those shown below, Val-Matic o ers a wide range of accessories to meet your application requirements. Please consult the factory for assistance. Extension Stem Assembly Valve Box T Wrench Chain Handle Extended Bonnet 2 AWWA NUT EXTENSION STEM COUPLIN WRENCH HEAD SEAT END 2 AWWA SOCKET Stem uide Lever Chain Wheel Floor Stand 6

7 APPLICATIONS/FEATURES Cam-Centric Plug Valve with worm gear actuator and chainwheel Cam-Centric Plug Valve with Val-Matic Swing-Flex 3-Way Cam-Centric Plug Valves with worm gear actuators Cam-Centric Plug Valve with motor actuator Cam-Centric Plug Valve with worm gear actuator Cam-Centric Plug Valve with worm gear actuator and extension stem Potable Water Raw Water Secondary Wastewater E Raw Sewage Screened Sewage Abrasive Slurries Air Service Corrosive Service Vertical Flow Up Vertical Flow Down Non-Abrasive Slurries uent APPLICATIONS Sludge Primary E uent Salt Water, Sea Water, Brine, Brackish Water Ozone Treatment Irrigation Buried Service Industrial Process Applications Low Pressure as Service, Digester as Throttling Service Pump Check Service Modulating Service FEATURES Vee Type Packing with Exclusive POP Shims Integral Nickel Welded Seat Exclusive Stainless Steel/T Bearing Package rit-uard Bearing and Packing Protector ear, Hydraulic and Power Actuation Port areas for valves 100mm and smaller 100% Port areas for valves 150mm-400mm 85% Port areas for valves 450mm-600mm 80% 7

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