Model DF233 Control Valve
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- Allen Rolf Williams
- 5 years ago
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1 Figure 1 DF233 Control Valve TABLE OF CONTENTS Introduction 2 Body and Packing Reassembly 7 Specifications 3 Fail Closed Actuator Reassembly 8 Valve Sizes 3 Fail Open Actuator Reassembly 9 Unpacking 4 Gap Diagram - Figure 2 11 Installation 4 Angle Body Diagram - Figure 3 11 Air Piping 4 Fail Closed Cross Section - Figure 4 12 Periodic Inspection 4 Fail Open Cross Section - Figure 5 13 Body and Packing Disassembly 4 Parts List, Materials & Key Numbers 14 Fail Open Actuator Disassembly 5 Model Builder 18 Fail Closed Actuator Disassembly 6 1
2 NOTICE These instructions are meant to be used with the Dyna-Flo 233 Technical Bulletin as they refer to Figures and Tables therein. If you do not have the Technical Bulletin, contact Dyna-Flo immediately, or visit Each control valve is factory checked. Check the calibration for the specific application, before a valve is put into service. It is the intention of this document to provide users with an accurate guide for safe installation and maintenance of the DF233 Control Valve. Revisions and updates are available at above mentioned website. INTRODUCTION The Dyna-Flo Model DF233 Control Valve is a rugged globe style control valve intended for demanding applications in process control. It is suitable for a wide range of applications, especially high pressure and severe service. The compact design makes installation and maintenance more convenient than traditional valve and actuator assemblies while still offering the same functionality. The Model DF233 is designed to accept instrumentation requiring valve stem linkages making it an excellent control valve. GENERAL The following instructions are to be thoroughly reviewed and understood prior to installing, operating or performing maintenance on this equipment. Work on this equipment should be performed by experienced personnel. Throughout the manual, safety and caution notes appear and must be strictly followed, to prevent serious injury or equipment malfunction. SCOPE The control valve configuration and construction materials were selected to meet particular pressure, temperature, and process conditions. Some material combinations are limited in their pressure and temperature ranges. Do not apply any other conditions to the valve without first contacting your Dyna-Flo sales office. This manual is written to be a practical and useful guide maintaining the Dyna-Flo DF233 Control Valve. CAUTION To avoid personal injury or installation damage as a result of the sudden release of process pressure or the breaking of parts, do not install the valve assembly where service conditions could exceed the limits stated in this manual or on the equipment nameplates. Use government codes, accepted industry standards and good piping practices to select pressure-relieving equipment for protection of your installation. It is also important to wear the proper protective equipment when performing any installation or maintenance activity. 2
3 SPECIFICATIONS Port Diameter 1/4, 3/8, 1/2, 3/4, and 1 See Table 1 & 2 of Sales Bulletin for details and Port Diameters. Material Temperature Capabilities Body Assembly -46 to 150 o C (-50 to 300 o F) Actuator Assembly -40 to 82 o C (-40 to 180 o F) Sizes and Connection Styles Size: 1 & 2 inch Rating: ASME 150 / 300 / 600 / 900 Connections: NPT / RF / RTJ See Table 1, 2, & 3 of Sales Bulletin for details and Port Diameters. Body Style Available in Globe and Angle style. Bonnet/Body Connection Threaded Hammer Nut. Standard Shut-off Classification ASME Class IV ASME / FCI 70-2 Optional Soft Seat ASME Class VI ASME / FCI 70-2 Actuator Configuration The DF233 utilizes a on/off style spring and diaphragm actuator. Fail action is field-reversible. Dimensions See Table 5 (Page 6) & Figures 4-5 (Page 7) of Sales Bulletin. Flow Characteristics Quick Opening Flow Direction Up or down (See Table 2 of Sales Bulletin). Maximum Travel 3/8 inch (10 mm). Maximum Actuator Casing Pressure 50 Psig (3.45 Bar). Effective Actuator Diaphragm Area 33 inches 2 (213 cm 2 ). Actuator Pressure Connections NPS 1/4 inch NPT. For more information and other options contact your Dyna-Flo sales office. Maximum Pressures and Temperatures 1 Valve Size 200 O F (93 O C) 300 O F (150 O C) NPS 1-2 inch NPT 2,250 Psig ( Bar) 2,182 Psig ( Bar) NPS 1-2 inch Class 600 1,500 Psig ( Bar) 1,454 Psig ( Bar) NPS 1-2 inch Class 900 2,250 Psig ( Bar) 2,185 Psig ( Bar) 1 - The limitations shown are as per ASME B Refer to the pressure temperature ratings in this standard for all other flange ratings. Do not exceed these ratings. 3
4 UNPACKING VALVE FROM SHIPPING CONTAINER Check the packing list against materials received while unpacking the valve. The Packing List describes valve and accessories in each shipping container. When lifting the valve from shipping container, it is advisable to use appropriate lifting straps placed on the neck of the actuator and valve body to balance the lift. Position the lifting straps to avoid damage to the tubing and mounted accessories. INSTALLATION WARNING Refer to the General and Scope sections of this Manual (See Page 2) prior to beginning Installation. Before installing the valve, clean dirt, welding chips, scale or other foreign material from the line. Look for signs of gasket leakage through the line flanges. Make repairs, if required. Check the hammer nut (Key 30) for proper tightness. 1 When operating conditions allow, install the valve for the preferred flow direction. Refer to Table 2 for guide lines on shut-off pressure drops. The valve assembly may be installed in any position unless limited by vibration considerations. NOTE The normal method of installation is with the actuator in vertical position above the valve body. WARNING Keep hands, hair and clothing away from all moving parts when operating the valve! Serious injury can result from failure to do so! 2 When possible, stroke the valve and check for smooth operation through the full-stroke. Unsteady valve stem movement could be an indication of an internal problem. Air Piping The actuators are designed to accept 1/4 NPT connection. Use 3/8 OD tubing (or equivalent) for all air lines. All connections must be free of leaks. CAUTION Do not exceed supply pressure indicated on serial plate located on top of the actuator casing (Key 16). PERIODIC INSPECTION CAUTION Use safe work practices and lock out procedures when isolating valves and actuators! Always be aware of flammable instrument gas! 1 Avoid personal injury from sudden release of process pressure! Before performing any maintenance operation: A B C D Disconnect any power supply media lines providing air / gas pressure, electric power, or a control signal to the actuator. Ensure the actuator cannot suddenly operate the valve. Isolate the valve from process pressure with bypass valves or completely shut off the process. Relieve process pressure, and drain the process fluid from the up and down stream of the valve. Vent the pneumatic actuator loading pressure. Use Safety lock-out procedures to be sure that the above provisions stay in effect while you complete the work on your equipment. 2 Check for process fluid leakage to the atmosphere through the body to bonnet joint and (if equipped) any NPT connection. 3 Examine the valve for damage caused by corrosive fumes or process drippings. 4 Clean the valve and repaint areas of severe oxidation. 5 Ensure all accessories, mounting brackets and fasteners are secure. 6 Clean any dirt and foreign material from the plug stem. BODY AND PACKING DISASSEMBLY (Fail Open and Fail Closed) For Fail Open Actuators Vent the pneumatic actuator loading pressure and relieve any actuator spring preload. For Fail Closed Actuators It is necessary to apply pneumatic loading pressure to the actuator prior to separating the body (Key 1) from the bonnet (Key 2) in order to unseat the valve plug (Key 3). Failure to unseat the valve plug when removing the bonnet assembly could damage the valve plug and seat ring (Key 4). 4
5 BODY AND PACKING DISASSEMBLY (Continued) (Fail Open and Fail Closed) CAUTION The body can be serviced in-line, after all process pressure and fluid are released. Disassembly of the actuator should take place with the actuator and bonnet removed from the valve body. Once removed, secure the actuator and bonnet in a clamping device before proceeding with disassembly. All Key references to follow are from Figure 2, 4, & 5. 1 Once the body (Key 1) is secured, separate the body from the bonnet (Key 2). DF233 bonnets are held in place using a hammer nut. A small sledge hammer is commonly used to loosen the hammer nut in a counterclockwise direction. Once the hammer nut is loosened it should move freely by hand. If the hammer nut or bonnet do not move freely be cautious of a build up of process pressure. Once the bonnet is disengaged from the body, carefully remove it with the plug and stem still attached. 2 Inspect the bonnet & hammer nut threads in the body for damage. 3 Inspect the washer (Key 18) between the hammer nut and bonnet for damage. If it is necessary to replace the washer, actuator disassembly must be done before removal. NOTE For trim replacement only, follow steps under applicable actuator disassembly. If replacing packing, follow steps under applicable actuator disassembly. FAIL CLOSED ACTUATOR DISASSEMBLY All Key references to follow are from Figures 2 & 4. 4 Vent the pneumatic actuator loading pressure if pressure is still present from bonnet/body disassembly. 5 Begin by removing the 10 short (1 ) cap screws (Key 26) from the actuator casings (Key 16 & 17) using two 9/16 wrenches or an impact wrench with a 9/16 socket. Be sure to leave the 2 long cap screws. CAUTION The springs inside the actuator casings are still under compression. It is necessary to take proper safety precautions and to follow proper procedures. 6 Once the 10 short cap screws have been completely removed, begin loosening the two long (1-1/4 ) cap screws in an alternating pattern. During removal, try to keep the upper casing (Key 16) level until the springs are no longer under compression, then completely remove the long cap screws and upper casing. 7 Remove the actuator springs (Key 15) from the diaphragm plate (Key 24). 8 A 5/8 wrench is required to remove the travel stop (Key 29). 9 Remove the diaphragm plate spacer (Key 25) and inspect the spacer for damage. 10 Remove the diaphragm plate (Key 24). Inspect the diaphragm plate for corrosion and damage. 11 Remove the diaphragm (Key 14) and inspect surface for wear, stretching and tears. Replace if necessary. 12 Remove the diaphragm plate washer (Key 23). 13 To replace o-ring under lower casing use a 1-1/2 deep socket or wrench to remove the bonnet lock nut (Key 22). 14 Remove the flat washer (Key 21) and lower diaphragm casing (Key 17). Take note of the position of the lower casing for reassembly purposes. 15 Remove the casing o-ring (Key 7) and replace. 16 Remove the hammer nut (Key 30) from over the bonnet, inspect the threads for damage and corrosion. 17 Remove the washer (Key 18) from the hammer nut seating surface of the bonnet, inspect the washer for damage or corrosion and replace if necessary. 18 With the bonnet removal and actuator disassembly complete, pull the plug and stem assembly (Keys 5 & 3) out of the bonnet (Key 2). 19 Remove the cage bushing (Key 20), spring washers (Key 12), packing spacer (Key 31), and packing (Key 11) from the bonnet bore. Inspect all parts for damage and corrosion. Retain the cage bushing, spring washers, and spacer for use in the reassembly of the valve. 5
6 FAIL CLOSED ACTUATOR DISASSEMBLY (Continued) 20 Using a mechanics pick-set, remove the stem bushing (Key 13) and remove the o-ring (Key 6) from the bonnet. Be careful not to scratch or damage o-ring surfaces. 21 With all the parts removed from the bonnet, clean and inspect all gasket and packing sealing surfaces. Check threads for damage. NOTE For standard valve trim, the cage and seat ring are one piece. A two piece cage and seat ring design is used for optional trim materials but are sold together as one unit. 22 With the bonnet/body separated, remove the cage / seat ring (Key 4) assembly from the valve body. There is a small hole at the top of the cage, remove the cage/seat ring using a pick set through the removal hole. Avoid removing the cage using the cage windows. 23 Wipe the seat ring surface of the body and inspect for signs of leakage, corrosion, or other marks. 24 Using a mechanics pick set, remove the o-ring (Key 10) on the side of the seat ring. Inspect the o-ring groove for corrosion or damage and replace the o-ring. 25 Inspect all sealing and guiding surfaces for damage. Seating surfaces can be re-machined or re-lapped if required. 26 Inspect the inside machined surfaces of the body for damage or corrosion. Replace or repair the body if necessary. Fail Open Actuator Disassembly All Key references to follow are from Figures 2 & 4. 1 Vent the pneumatic actuator loading pressure if pressure is still present from bonnet/body disassembly. 2 Begin by removing the 10 short (1 ) cap screws (Key 26) from the actuator casings (Key 16 & 17) using two 9/16 wrenches or an impact wrench with a 9/16 socket. Be sure to leave the 2 long cap screws. CAUTION The springs inside the actuator casings are still under compression. It is necessary to take proper safety precautions and to follow proper procedures. 3 Once the 10 short cap screws have been completely removed, begin loosening the two long (1-1/4 ) cap screws in an alternating pattern. During removal, try to keep the upper casing (Key 16) level until the springs are no longer under compression, then completely remove the long cap screws and upper casing. 4 A 5/8 wrench is required to remove the travel stop (Key 29). 5 Remove the diaphragm plate washer (Key 23). 6 Remove the diaphragm (Key 14) and inspect surface for wear, stretching and tears. Replace if necessary. 7 Remove the diaphragm plate (Key 24). Inspect the diaphragm plate for corrosion and damage. 8 Remove the diaphragm plate spacer (Key 25) and inspect the spacer for damage. 9 Remove the actuator springs (Key 15) from the diaphragm plate (Key 24). 10 To replace o-ring under lower casing use a 1-1/2 deep socket or wrench to remove the bonnet lock nut (Key 22). 11 Remove the flat washer (Key 21) and lower diaphragm casing (Key 17). Take note of the position of the lower casing for reassembly purposes. 12 Remove the casing o-ring (Key 7) and replace. 13 Remove the hammer nut (Key 30) from over the bonnet, inspect the threads for damage and corrosion. 14 Remove the washer (Key 18) from the hammer nut seating surface of the bonnet, inspect the washer for damage or corrosion and replace if necessary. 15 With the bonnet removal and actuator disassembly complete, pull the plug and stem assembly (Keys 5 & 3) out of the bonnet (Key 2). 16 Remove the cage bushing (Key 20), spring washers (Key 12), packing spacer (Key 31), and packing (Key 11) from the bonnet bore. Inspect all parts for damage and corrosion. Retain the cage bushing, spring washers, and spacer for use in the reassembly of the valve. 6
7 Fail Open Actuator Disassembly (Continued) 17 Using a mechanics pick-set, remove the stem bushing (Key 13) and remove the o-ring (Key 6) from the bonnet. Be careful not to scratch or damage o-ring surfaces. 18 With all the parts removed from the bonnet, clean and inspect all gasket and packing sealing surfaces. Check threads for damage. NOTE For standard valve trim, the cage and seat ring are one piece. A two piece cage and seat ring design is used for optional trim materials but are sold together as one unit. 19 With the bonnet/body separated, remove the cage / seat ring (Key 4) assembly from the valve body. 20 Wipe the seat ring surface of the body and inspect for signs of leakage, corrosion, or other marks. 21 Using a mechanics pick set, remove the o-ring (Key 10) on the side of the seat ring. Inspect the o-ring groove for corrosion or damage and replace the o-ring. 22 Inspect all sealing and guiding surfaces for damage. Seating surfaces can be re-machined or re-lapped if required. 23 Inspect the inside machined surfaces of the body for damage or corrosion. Replace or repair the body if necessary. BODY AND PACKING REASSEMBLY (Fail Open and Fail Closed) WARNING When reassembling a DF233, the assembly of the actuator must take place with the bonnet / actuator detached from valve. To assembly a Fail Closed actuator while the valve plug is in the body may cause damage to the plug and seat. NOTE For standard valve trim, the cage and seat ring are one piece. A two piece cage and seat ring design is used for optional trim materials but are sold together as one unit. 1 Clean and inspect the seating surface in the valve body. Make sure the valve body is free of debris, oil, and grease. 2 Coat the seat ring o-ring (Key 10) with o-ring lubricant and install it into the lower outside o-ring groove on the seat ring (Key 4). 3 Place the seat ring / cage assembly into the valve body (Key 1) and press it down to assure it is positioned properly as shown in Figure 4. 4 With the bonnet (Key 2) sitting actuator side up, lubricate the stem o-ring (Key 6) with 5 Install the stem bushing (Key 13) into the stem bore, push the bushing into the bonnet until the bushing snaps into place. Once in place, the bushing should sit just above the stem o-ring. Turn the bonnet upside down 6 Prepare the components for reassembling the packing assembly by using the appropriate packing lubricant and lubricate the outside of the packing rings (Key 11). Stack the packing in a set as shown in Figure 2 and insert the set into the packing bore with the open end of the V pointing down. The first ring of packing needs to make contact with the bottom of the packing bore. 7 Lubricate the lower outside diameter bonnet o-ring (Key 9) and install it into the o-ring groove. 8 Lubricate the plug o-ring (Key 8) with o-ring lubricant and slide it over the valve plug (Key 3) but do not slide it in the o-ring groove. 9 Coat the threads of the valve stem (Key 5) with Nickel based anti-seize. Thread the valve plug into the end of the valve stem until the holes of the plug and stem are in alignment. 10 Insert the pin (Key 19) into the valve plug and stem. The pin should slide easily through both plug and stem holes, if the pin is difficult to install the holes might be out of alignment. Use a small punch to push the pin completely into position and once in position slide the o-ring into the groove on the valve plug securing the pin. 7
8 BODY AND PACKING REASSEMBLY (Continued) (Fail Open and Fail Closed) 10 Insert the pin (Key 19) into the valve plug and stem. The pin should slide easily through both plug and stem holes, if pin is difficult to install the holes might be out of alignment. Use a small punch to push the pin completely into position and once in position slide the o-ring into the groove on the valve plug securing the pin. 11 Slide the cage bushing (Key 20) onto the valve stem (Key 5) so that it rests on top of the valve plug (Key 3). See Figure 2 for the correct orientation of the bushing. 12 Next slide the spring washers (Key 12) onto the valve stem. Be sure the spring washers are in the correct order (See Figure 2). Place the packing spacer (Key 31) over the spring washers as shown in Figure 2. Use caution not to scratch the valve stem. 13 Slide the plug / stem assembly up through the packing and into the bonnet window. Slide the travel indicator (Key 33) over the stem and continue sliding the stem through the rest of the bonnet until the cage bushing is inserted into the bottom of the bonnet. Be careful not to damage the stem o-ring and bushing when the stem comes through the top of the bonnet. 15 Apply Nickel based anti-seize to both sides of the bonnet washer (Key 18) and place the washer onto the bonnet (Key 2). Coat the threads of the hammer nut (Key 30) with anti-seize and place it onto the bonnet so that it rests on the bonnet washer. NOTE Once the packing, washers, spacer, and bushing are installed into the packing bore there will be a gap of 0.06 to 0.08 inches between the lip of the cage bushing and the bottom of the bonnet. See Figure 2 for detail. 16 See specific Fail Open or Fail Closed Actuator Reassembly instructions for remaining assembly information. FAIL CLOSED ACTUATOR REASSEMBLY WARNING When reassembling a Fail Closed DF233, the assembly of the actuator must take place with the bonnet / actuator detached from valve. NOTE A conversion from Fail Open to Fail Closed or vice versa may require more or less springs depending on the required shutoff pressure needed (See Table 2). 1 Lubricate the o-ring (Key 7) for the top of the bonnet and install. Place the lower diaphragm casing (Key 17) over the valve stem so that it rests on the casing o-ring (Key 7). Orientate the NPT connection of the casing so that it is centered within the bonnet window (Key 2). Reference Figure 4 for correct NPT orientation. 2 Install the flat washer (Key 21) over the valve stem so that it rests on the lower casing. 3 Apply medium strength thread locking compound to the exposed bonnet threads. 4 While holding the lower casing in place, thread the bonnet locknut (Key 22) onto the bonnet using a 1-1/2 deep socket tighten to 200 lbf-ft. 5 Install the diaphragm plate washer (Key 23) over the valve stem (Key 5). 6 Place the diaphragm (Key 14) over the stem so that it is in contact with the diaphragm plate washer. Be sure to align the holes of the diaphragm with the bolt holes on the lower casing (Key 17). 7 Slide the diaphragm plate (Key 24) over the stem so that it rests with the flat face against the diaphragm. Reference Figure 4 for correct diaphragm plate placement. 8 Install the diaphragm plate spacer (Key 25) over the stem so that it rests on top of the diaphragm plate. 9 Apply medium strength liquid thread locker to the threads of the travel stop (Key 29) and thread it onto the valve stem. It may be necessary to insert a screw driver through the hole in the valve stem while tightening the stem nut to keep the stem from turning. Using a 5/8 socket, torque down the stem nut to 100 lbf-in. 8
9 FAIL CLOSED ACTUATOR REASSEMBLY (Continued) 10 Place the springs (Key 15) on the diaphragm plate in a circular pattern, evenly spaced centered on the plate embossments. 11 Place the upper casing (Key 16) over the springs, be sure that the NPT connection of the upper casing is aligned with the NPT connection of the lower casing. Also, be sure that the bolt holes of the upper casing are aligned with the bolt holes of the lower casing. 12 Install both of the long (1-1/4 ) cap screws (Key 27) opposite from each other and in line with the valve body. Partially thread a nut (Key 28) onto one of the long cap screws. 13 It may be necessary to compress the springs by pushing slightly on the upper casing to thread a nut onto the second long cap screw. Using two 9/16 wrenches or socket set, evenly tighten the two long cap screws using an alternating pattern. Until the 10 short cap screws can be installed and the nuts threaded on. Completely tighten the 12 nuts. 14 Install the vent cap (Key 32) to the NPT connection on the upper casing. 15 It will be necessary to apply supply pressure to the actuator in order to assemble the bonnet / actuator and valve body. 16 Coat the large diameter guide section of the valve plug (Key 3) with mechanical assembly grease. Carefully place the plug into the cage (Key 4) lowering the bonnet assembly into position over the valve. FAIL OPEN ACTUATOR REASSEMBLY WARNING When reassembling a Fail Open DF233, the assembly of the actuator must take place with the bonnet / actuator detached from valve. NOTE A conversion from Fail Open to Fail Closed or vice versa may require more or less springs depending on the required shutoff pressure needed (Refer to Table 2). 1 Lubricate the o-ring (Key 7) for the top of the bonnet and install. Place the lower diaphragm casing (Key 17) over the valve stem so that it rests on the casing o-ring (Key 7). Orientate the NPT connection of the casing so that it is centered within the bonnet window (Key 2). Reference Figure 5 for correct NPT orientation. 2 Install the flat washer (Key 21) over the valve stem so that it rests on the lower casing. 3 Apply nickel based anti-seize compound to the exposed bonnet threads. 4 While holding the lower casing in place, thread the bonnet locknut (Key 22) onto the bonnet using a 1-1/2 deep socket tighten to 200 lbf-ft. 5 Install the diaphragm plate spacer (Key 25) over the stem. 6 Set the required springs (Key 15) onto the inside of the lower casing, spacing them equally in a circular pattern. Position the springs so that they will line up with the raised embossments of the diaphragm plate (Key 24). 7 Place the diaphragm plate over the valve stem so that the concave face touches the springs and the embossments sit inside the spring. 8 Place the diaphragm (Key 14) over the stem so that it is in contact with the diaphragm plate. Make sure the holes on the diaphragm are aligned with the bolt holes on the casing. 9 Install the diaphragm plate washer (Key 23) over the valve stem so that it rests on top of the diaphragm. 10 Apply medium strength liquid thread locker to the threads of the travel stop (Key 29) and thread it onto the stem. 9
10 FAIL OPEN ACTUATOR REASSEMBLY (Continued) 11 It may be necessary to insert a screw driver into the hole on the valve stem to keep the stem from turning while tightening the travel stop. Using a 5/8 socket, torque down the travel stop to 100 lbf-in. 12 Place the upper casing (Key 16) over the springs, be sure that the NPT connection of the upper casing is aligned with the NPT connection of the lower casing. Also, be sure that the bolt holes of the upper casing are aligned with the bolt holes of the lower casing. 13 Install the two long (1-1/4 ) cap screws (Key 27) opposite each other making sure they are in line with the valve body (this is to prevent future complications). Install the 10 short (1 ) cap screws (Key 26) and thread a nut (Key 28) onto all 12 cap screws. Using two 9/16 wrenches or socket set, completely tighten all the nuts and cap screws. 14 Install the vent cap (Key 32) to the NPT connection on the lower casing. 15 Coat the large diameter guide section of the valve plug (Key 3) with mechanical assembly grease. Carefully place the plug into the cage (Key 4) lowering the bonnet assembly into position over the valve. 10
11 Figure 2 DF233 Gap Diagram Valve Body inch gap 20 3 Figure 3 DF233 1 Inch Angle Body Diagram 11
12 Note: Casing (Keys 16 & 17) is rotated 90 O to show the NPT connections Figure 4 DF233 Fail Closed Cross Section with 2 inch NPT Valve Body 12
13 Note: Casing (Keys 16 & 17) is rotated 90 O to show the NPT connections Figure 5 DF233 Fail Open Cross Section with 1 inch NPT Valve Body 13
14 Parts List Key Description Material Part Number 1 Body If you need a body as a replacement part, order by valve size, serial number and desired material. 2 Bonnet LCC DF20251X01D 3 Valve Plug 1/4 INCH PORT S17400 DH1150 3/8 INCH PORT S17400 DH1150 1/2 INCH PORT S17400 DH1150 DF20601X01D 3/4 INCH PORT S17400 DH INCH PORT S17400 DH1150 DF20602X01D 1/4 INCH PORT 3/8 INCH PORT 1/2 INCH PORT 3/4 INCH PORT 1 INCH PORT S30300 / Tungsten Carbide SEE TUNGSTEN CARBIDE TRIM SET (Table 1) 4 Cage / Seat Ring Assembly 1/4 INCH PORT S17400 DH1150 DF205014X1D 3/8 INCH PORT S17400 DH1150 DF205038X1D 1/2 INCH PORT S17400 DH1150 DF205012X1D 3/4 INCH PORT S17400 DH1150 DF205034X1D 1 INCH PORT S17400 DH1150 DF205100X1D 1/4 INCH PORT 3/8 INCH PORT 1/2 INCH PORT 3/4 INCH PORT 1 INCH PORT S30300 / Tungsten Carbide SEE TUNGSTEN CARBIDE TRIM SET (Table 1) 5 Valve Stem S20910 DF20302X01D 6 Stem O-Ring HNBR DF10210X01D 7 Casing O-Ring HNBR DF10209X01D 8 Plug O-Ring HNBR DF20781X01D 9 Bonnet O-Ring HNBR DF20783X01D 10 Seat Ring O-Ring HNBR DF20788X01D 11 Packing Set PTFE / CPTFE DF10206X01D 12 Spring Washers NO7718 See Spring Pack 13 Stem Bushing Nylon DF40418X01D 14 Diaphragm Neoprene / Nylon DF10404X01D 15 Springs Steel / Zinc DF10407X01D 16 Upper Diaphragm Casing Steel / Zinc DF10408X01D 17 Lower Diaphragm Casing Steel / Zinc DF10401X01D 14
15 Parts List Key Description Material Part Number 18 Bonnet Washer S30200 DF20215X01D 19 Dowel Pin S31600/S31603 Dual Grade DF40303X01D 20 Cage Bushing S17400 DH1150 DF20216X01D 21 Flat Washer Zinc Plated Steel FWZN Bonnet Lock Nut Steel DF10208X01D 23 Diaphragm Plate Washer S30300 DF10405X01D 24 Diaphragm Plate Steel DF10403X02D 25 Diaphragm Plate Spacer S30300 DF10406X01D 26 Cap Screw Zinc Plated Steel H5FZ Long Cap Screw Zinc Plated Steel H5FZ Nut Zinc Plated Steel NHFZ38 29 Travel Stop Zinc Plated Steel DF10211X01D 30 Hammer Nut LCC DF20208X01D 31 Packing Spacer S31600/S31603 Dual Grade See Spring Pack 32 Vent Plastic Y602-12D 33 Travel Indicator Plastic/Metal DF20221X01D 34 Nameplate Steel NAME18DF2ZD 35 Casing Sticker Vinyl DF20219X01D Table 1 TUNGSTEN CARBIDE TRIM SET Description Part Number 1/4 INCH PORT TDXDF21014D 3/8 INCH PORT TDXDF21012D 1/2 INCH PORT TDXDF21038D 3/4 INCH PORT TDXDF21034D 1 INCH PORT TDXDF21100D Spring Pack Kit Description Spring Washers (Key 12) & Packing Spacer (Key 31) Part Number DF10219X01D Parts Ordering Whenever corresponding with Dyna-Flo about a Model DF233 control valve, refer to the actuator nameplate or the back of the valve body for the unit serial number. Please order by the complete part number (as given in the Parts List) of each part required. 15
16 Our Commitment to Quality Dyna-Flo is committed to continuous improvement. While all efforts have been made to ensure the accuracy of the content in this document, modifications or improvements to the information, specifications, and designs may occur at any time without notice. This document was published for informational purposes only, and does not express or imply suitability, a warranty, or guarantee regarding the products or services described herein or their use or applicability. Neither, nor any of their affiliated entities assumes responsibility for the selection, use and maintenance of any product. Responsibility for selection, use and maintenance of any product remains with the purchaser and end-user. 16
17 This page left blank intentionally. 17
18 SAMPLE PART NUMBER: DF233-1GC3-6BN-14S-X 1 1 INCH 2 2 INCH G GLOBE STYLE T ANGLE STYLE C FAIL CLOSED O FAIL OPEN 3 SIZE 33 ACTUATOR WITH 0-22 PSIG OPERATING SIGNAL 6 VALVE SIZE BODY STYLE ACTUATOR STYLE SPRING RANGE SIZE 33 ACTUATOR WITH 0-35 PSIG OPERATING SIGNAL NUMBER OF SPRINGS 3 3 SPRINGS 6 6 SPRINGS ASME RATING A 150 B 300 C 600 D 900 F 900 NPT CONNECTION STYLE N NPT F RF J RTJ TRIM SIZE 14 1/4 INCH 38 3/8 INCH 12 1/2 INCH 34 3/4 INCH 10 1 INCH TRIM MATERIAL S S17400 DH 1150 T S30300 / TUNGSTEN CARBIDE SPECIAL X SPECIAL 1 G C 3 6 B N 14 S X DF
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