Samson 4708 Mounting And Operating Instructions
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Samson 4708 Mounting And Operating Instructions

Supply pressure regulator
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Type 4708 Supply Pressure Regulator
Type 4708-53
Type 4708-64
Type 4708-12
Mounting and
Operating Instructions
EB 8546 EN
Edition March 2016

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Summary of Contents for Samson 4708

  • Page 1 Type 4708 Supply Pressure Regulator Type 4708-53 Type 4708-64 Type 4708-12 Mounting and Operating Instructions EB 8546 EN Edition March 2016...
  • Page 2 Î For the safe and proper use of these instructions, read them carefully and keep them for later reference. Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service Department (aftersalesservice@samson.de). The mounting and operating instructions for the devices are included in the scope of delivery.

  • Page 3: Table Of Contents

    Mounting the rotating supplementary filter .............22 Adjusting the set point .................22 Maintenance ....................23 Troubleshooting...................24 Spare parts and accessories.................25 Spare parts ....................25 Accessories ....................26 Dimensions in mm ..................27 Note For details on the Type 4708-45 Supply Pressure Regulator (with increased air capacity), see EB 8546-1. EB 8546 EN...

  • Page 5: General Safety Instructions

    General safety instructions 1 General safety instructions For your own safety, follow these instructions concerning the mounting, start-up, and opera- tion of the device: − The device is to be mounted, started up or operated only by trained and experienced personnel familiar with the product.

  • Page 6: Design And Principle Of Operation

    (11) is mounted hor- izontally or the filter receptacle (13) is sus- pended downwards. The screw plug (12) can be unscrewed or the manual drainage (16) can be activated to drain condensed water. Fig. 1: Overview of Type 4708 EB 8546 EN...
  • Page 7 Design and principle of operation 11 12.1 11.4 12.1 11.3 Body 11.1 1.1 Seat 1.2 Plug 1.3 Connecting bore 11.2 Plate 2.1 Diaphragm Cover 3.1 Venting bore Centering bushing Set point spring Set point screw Lock nut Filter cartridge 11.1 Screw 11.2 Cap 11.3 Shroud 11.4 Air deflector...

  • Page 8: Versions

    Design and principle of operation 2.1 Versions Supply pressure regulator in Supply pressure regulator with increased air standard version capacity Type 4708- u EB 8546-1 Aluminum filter Supply pressure regulator with adapter plate without filter receptacle for positioner with plastic filter receptacle Types 3730, 3766, 3767 with aluminum filter receptacle Types 3725, 3730, 3766, 3767...

  • Page 9: Technical Data

    0 to 1.6 bar (0 to 24 psi) or 0 to 6 bar (0 to 90 psi) Connection G  Ambient temperature ranges Type 4708 -10 -11 -12 -13 -14 -17 -53 -54 -55 -62 -64 -82 -83 -84 -86 -87 Standard –25 to +70 °C  •...

  • Page 10: Materials

    Mounting the supply pressure regulator 3.2 Materials Supply pressure regulator Type 4708-xx Body Metal parts Aluminum (3.3547) or stainless steel (1.4404) Plastic parts Polyamide, glass fiber reinforced Cover Polyamide, glass fiber reinforced Polyamide, glass fiber reinforced Plug Polyamide, glass fiber reinforced and polyoxymethylene Diaphragm NBR ·...

  • Page 11: Mounting The Supply Pressure Regulator

    In the compact supply pressure regulators 4. Stick the adhesive label included in the (Types 4708-10xx/-11xx/-14xx and accessories over the arrow of the name- -17xx), the direction of flow can be changed plate, making sure that the arrow indi-...

  • Page 12: Turning The Supply Pressure Regulator

    Mounting the supply pressure regulator 3.2.1 Turning the supply pres- 3. Turn the regulator 180 degrees and rein- sert the gasket. In this way, you keep the sure regulator bore assignment of the gasket for supply The supply pressure regulator can be turned air input and regulator outlet.

  • Page 13: Supply Pressure Regulators For Attachment To Positioners And Actuators

    Mounting the supply pressure regulator 3.3 Supply pressure regulators Type 4708-54xx has a second output sealed with a stopper. This is intended for reduced for attachment to posi- supply air. It can be used to supply a second tioners and actuators device, if required (e.g.
  • Page 14 Mounting the supply pressure regulator Type 4708-55xx for Types 3725, 4763, and 4765 Positioners 1. Screw the special nuts (5) into the connect- ing holes of the positioner. 2. Insert the gasket (2) into the recess of the adapter plate (1). 3. Slide the special hollow screws (6) for SUPPLY and (7) for OUTPUT into the con- necting holes of adapter plate (1).
  • Page 15 Mounting the supply pressure regulator Type 4708-62xx for Type 3372 Actuator 3. Insert the O-ring (9). Position the supply pressure regulator and fasten it to the ac- 1. Screw the special nut (5) into the SUPPLY tuator using the special screw. connecting hole of the actuator.

  • Page 16: Pneumatic Connections

    OUTPUT port through spondingly if you change the location of the the adapter plate to the actuator. pressure gauge and screw plug to the other side. 2...3 mm 0 mm Fig. 9: Mounting the pressure gauge, e.g. Types 4708-12xx/-13xx (compact version) EB 8546 EN...

  • Page 17: Additional Output

    In some versions of Type 4708 (see section corresponding holes in the intermediate 8.2 on accessories), a second output can be plate.
  • Page 18 Pneumatic connections Mounting the intermediate plate 3. Place the intermediate plate onto the connecting or adapter plate in such a 1. Remove the fastening screws and lift the way that their three boreholes (arranged supply pressure regulator (4) together in row) are located over the two 5 mm with the diverting gasket (3) off the boreholes of the adapter plate and the adapter plate (1).

  • Page 19: Manual/Automatic Switchover

    (see Fig. 12) or on an adapter plate with Fig. 12: Mounting on positioners hook-up to the actuator (Fig. 15). − Insert gasket into recess of the manual/ The Type 4708-53 or Type 4708-54 Supply automatic switchover unit. Pressure Regulator can be directly mounted. − Fasten the manual/automatic switchover...

  • Page 20: Mounting Using An Adapter Plate

    Pneumatic connections 4.3.2 Mounting using an Optionally, a Type 4708-53 Supply Pressure Regulator can be mounted upstream of the adapter plate manual/automatic switchover unit (Fig. 14). − Fasten adapter plate, for example to a NAMUR rib using a hexagonal socket screw.

  • Page 21: Operating The Manual/Automatic Switchover Unit

    Pneumatic connections 4.3.3 Operating the manual/ 4.4 Filter with filter receptacle automatic switchover The Types 4708-83, -84, -86 and -87 Air unit Filters are designed for universal use. They have either G ¼ or ¼-18 NPT threaded con- In normal operation, the manual/automatic nection. switchover runs in automatic mode, during which the positioner supplies air to the pneu- matic actuator.

  • Page 22: Rotating Supplementary Filter

    Adjusting the set point 4.5 Rotating supplementary filter The rotating supplementary filter (Fig. 14) is designed for mounting to Type 4708-53 and Types 4708-55 to -64 Supply Pressure Regu- lators. It replaces the small integrated filter cartridge. The entire filter housing can be ro- tated by 360°...

  • Page 23: Maintenance

    Maintenance 6 Maintenance WARNING Risk of injury due to high pressure. Shut off the air line before performing work on the supply pressure regulator. Drain condensed water that has collected: Î Activate the manual drainage. Î Replace the gasket (order no. 0439- 0061), if necessary. We recommend to check the filter as often as possible.

  • Page 24: Troubleshooting

    Troubleshooting 7 Troubleshooting WARNING Risk of injury due to high pressure. Shut off the air line before performing work on the supply pressure regulator. Leakage between supply pressure regulator and adapter plate: Î Check whether the diverting gasket (Fig. 3 and Fig. 4) is installed and the two fastening screws are tightened prop- erly.

  • Page 25: Spare Parts And Accessories

    Filter receptacle (13), aluminum 1199-0424  1) Filter receptacle (13), stainless steel 1199-0425  1) Screw plug (12) 0079-0143 Seals for filter receptacle (12.1) For Type 4708 -10 -11 -12 -13 -14 -17 -53 -54 -55 -62 -64 PVMQ • • • • • • •...

  • Page 26: Accessories

    Stainless steel with G ¼ thread 1400-9607 Stainless steel with ¼ NPT thread 1400-9608 Adapter plate (from Type 3710) to mount Type 4708-53 on all old ver- 1400-9621 sions of Types 3766, 3767 or 3780 Positioner Filter cartridge 5 µm, sintered stainless steel (replacement part)

  • Page 27: Dimensions In Mm

    Dimensions in mm 9 Dimensions in mm (Specifications in parentheses apply to additional compressed air connection, see page 34) Types 4708-11xx/14xx Types 4708-10xx/-17xx Output or Supply Output or Supply Output or Supply Supply or Output EB 8546 EN...
  • Page 28 Dimensions in mm Type 4708-54xx mounted onto Type 3725 Positioner Output Supply Type 4708-53xx mounted onto Types 376x and 373x Positioners Output 75 (99) Supply EB 8546 EN...
  • Page 29 Dimensions in mm Type 4708-54xx mounted onto Types 376x and 373x Positioners Output Supply Type 4708-55xx mounted onto Type 4763 or 4765 Positioner Output 75 (99) Supply EB 8546 EN...
  • Page 30 Dimensions in mm Type 4708-64xx for Type 3277 Pneumatic Actuator and Type 376x or 373x Positioner Type 4708-64xx for Type 3277 Pneumatic Actuator and Type 3725 Positioner 30 EB 8546 EN...
  • Page 31 Dimensions in mm Type 4708-55xx mounted onto Type 3725 Positioner Types 4708-12xx/-13xx Supply Pressure Regulators Output Supply EB 8546 EN...
  • Page 32 Dimensions in mm Types 4708-83xx/-84xx/-86xx/-87xx Air Filter Rotatable filter receptacle Ø38.3 EB 8546 EN...
  • Page 33 Dimensions in mm Type 4708-62xx Supply Pressure Regulator for Type 3372 Pneumatic Actuator EB 8546 EN...
  • Page 34 Dimensions in mm Intermediate plate for additional compressed air shown here: Type 4708-55xx EB 8546 EN...
  • Page 35 Dimensions in mm Type 4708-82 Manual/automatic Switchover with adapter plate Supply Output EB 8546 EN...
  • Page 36 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 8546 EN samson@samson.de · www.samson.de...

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