Aventics PD-4 Manual, Service Information

Manual, Service Information for Aventics PD-4 Control Unit (6 pages)

Specifications:

1457/1457457-pd4.pdf file (05 Nov 2023)
  • Manufacturer: Aventics
  • Category of Device: Control Unit
  • Document: PD-4, File Type: PDF Service Information
  • Updated: 05-11-2023
  • Count of Pages: 6
Download PD-4 Manual (6 pages)

Read Aventics PD-4 PDF Manual Online:

Data: UPD 5th November 2023

Aventics PD-4 Control Unit PDF Service Information (Updated: Sunday 5th of November 2023 03:13:43 AM)

Rating: 4.7 (rated by 83 users)

Compatible devices: AS1, SuperSpool RCV, CONTROLAIR H-3, CONTROLAIR HE-2, R434001003, CONTROLAIR H-4-G, CONTROLAIR HC-2 Series, TC08.

Recommended Documentation:

Text Version of Aventics PD-4 Control Unit Manual

(Ocr-Read Summary of Contents, Document's Main Page, UPD: 05 November 2023)
  • Page 1:

    “PD” Relay Valve

    Service Information

    SM-400.8004

    The “PD” Relay Valve reduces the required capacity

    and size of the control lines. The relay valve also

    eliminates the delay normally caused by exhausting

    the air back through long lines.

    WARNING: INSTALLATION and MOUNTING

    The user of these devices must conform to

    all applicable electrical, mechanical, piping and other

    codes in the installation, operation or repair of these

    devices.

    INSTALLATION! Do not attempt to install, oper-

    ate or repair these devices without proper train-

    ing in the technique of working on pneumatic or

    hydraulic systems and devices, unless under

    trained supervision. Compressed air and hydrau-

    lic systems contain high levels of stored energy.

    Do not attempt to connect, disconnect or repair

    these products when a system is under pressure.

    Always exhaust or drain the pressure from a sys-

    tem before performing any service work. Failure

    to do so can result in serious personal injury.

    MOUNTING! Devices should be mounted and

    positioned in such a manner that they cannot be

    accidentally operated.

    The “PD” Relay Valve functions to relay or repeat con-

    trol pressure signals with large quantities of air at cor-

    responding pressures. Used in systems where long

    lines are required from the control device to the receiv-

    ing device, the PD4 Relay Valve permits fast system

    response by reducing control pressure transmission

    times. A direct local connection is made possible,

    through the Relay Valve, between a supply source and

    the receiving device. This reduces the required capac-

    ity and size of the controlling device and the size of the

    control line. When control pressure is reduced or re-

    leased, a local exhaust of pressure from the receiving

    device, through the Relay Valve, eliminates the delay

    normally caused by exhausting the air back through

    the long control line.

    CONSTRUCTION

    The “PD” Relay Valve is corrosion resistant with an

    anodized aluminum valve body and operator castings.

    The balanced spool valve is stainless steel. Triple

    supported, oil-resistant seals give a tight closure and

    long life protection. The large spring-opposed piston is

    also cast aluminum and has an “O” ring seal. The

    spring and various other parts are cadmium plated.

    OPERATION

    Control pressures applied to the top of the control piston

    positions a spool valve to allow inlet pressure to flow to the

    outlet port. This outlet pressure, in addition to flowing to

    the receiving device, flows to the underside of the control

    piston through the external copper tubing connection.

    When the outlet pressure balances the applied control

    pressure, the spool valve is returned by a spring to close

    the connection between inlet and outlet. Air pressure re-

    quirements of the receiving device automatically cause the

    control piston to function to maintain pressure in the outlet

    line, either increasing or decreasing to an amount corre-

    sponding to the control pressure, under varying operating

    conditions.

  • Page 2:

    Page 2

    PD RELAY VALVE

    OPERATIONAL DATA

    MAXIMUM SUPPLY PRESSURE 250 psi (17 bar)

    MAXIMUM CONTROL PRESSURE -5 to 250 psi (-

    0.3 bar to 17 bar)

    MAXIMUM OPERATING TEMPERATURE +200° F

    (93° C)

    CAPACITY - (See graphs below) To determine

    flow from inlet to outlet for any pressure drop with

    80 psi inlet pressure, project up from the PRES-

    SURE DROP scale (permissible difference be-

    tween inlet and outlet pressures) to the dotted

    curve. At this intersection, project to the left for the

    resulting flow on the vertical scale. For 200 psi, use

    the solid curve. To determine flow from outlet to

    exhaust, project from the OUTLET PRESSURE

    scale to the dash line curve and then to the left.

    SENSITIVITY—As shown by the graph below, the

    outlet pressure follows very closely the control

    pressure throughout the control range. The tabula-

    tion shown indicates the changes in outlet pressure

    required to operate the valve and restore the speci-

    fied outlet pressure.

    ORDERING REFERENCE

    1/2” PD-4 Relay Valves - R434005641 (Previously

    P –054452-00000).

    STATIC

    OUTLET

    PRESSURE

    OUTLET PRESSURE CHANGES REQUIRED

    TO OPEN INLET

    VALVE

    TO OPEN EXHAUST

    VALVE

    10 psi - 1 psi + 1 psi

    60 psi - 1.5 psi + 1.5 psi

    120 psi - 2 psi + 2 psi

    Dimensions

    A 1/2 -14 NPT

    B 2 1/8

    C 1 1/16

    D 1 15/16

    E 3 1/32

    F 10 3/8

    G 3 11/16

    H 1 7/16

    J 1 3/16

    K 3 1/2

    L 2 7/16

    M 1 15/16

    N 9/32

  • Page 3:

    Page 3

    Exploded View

  • Page 4:

    Page4

    Parts List

    Item New P/N Old Part No.

    Description

    Complete Device R431005641 P-054452-0000

    PD-4 Relay Valve

    Parts List

    Item New P/N Old Part No.

    Description Qty

    1 R431002243 P -049835-00005 SCREW 5/16-18UNCX0.75 4

    2 R431002572 P -049982-00006 SPRING LOCK WASHER B18.21.1-5/16-SS 4

    3 R431003075 P -052997-00000 COVER 1

    4 R431002046 P -049708-00233 "O" Ring 1

    5 R431003074 P -052996-00001 Piston 1

    6 R431002057 P -049708-00334 O-RING 5/8X3/32-NBR 1

    7 R431002570 P -049979-00000 SPLIT PIN 0.06X0.38 1

    8 R431002190 P -049818-00018 PIN 0.186X0.78 1

    10 R431002015 P -049708-00114 O-RING 5/8X3/32-NBR 1

    11 R431003072 P -052995-00000 Spring Retainer 1

    12 R431002943 P -051732-00000 SPRING 1

    13 R431002686 P -050613-00000 Front Cover 1

    *14 See kit See kit Packing Ring 3

    *15 See kit See kit Packing Seal 4

    16

    R431001052 P -030305-00000 Body Segment 1

    17 R431001114 P -030781-00000 Body Segement 1

    #*18 See kit See kit Stem 1

    19 R431002578 P -049985-00001 TIE-ROD 1/4-20 NC-2A X 5 4

    20 R431002687 P -050614-00000 Back Cover 1

    21

    R431002670 P -050570-00000 MOUNTING ADAPTER NUT D PILOTAIR

    4

    22

    R431007527 P -069975-00000 SPRING CAGE 1/2 D PILOTAIR

    1

    23

    R431002181 P -049804-00077 Plain Washers

    2

    24

    R431002118 P -049778-00000 COMPRESS.FITTING 1/8 X 1/4

    3

    Repair Kits

    *Minor kit R431007363 P -068837-00000 Minor valve portion repair kit

    #Major Kit R431007319 P -068539-00000 Includes minor kit & #18

    Basic Valve R431008392 PD-040131-K0000 Basic Portion includes items 13 thru 20

    Operator portion R431008120 PD-040000-00020 Low pressure operator Items 1 thru 12

    End cover kit R431008139 PD-040000-k0098 End cover kit includes items 21 & 22

  • Page 5:

    Page 5

    NOTICE TO PRODUCT USERS

    1. WARNING: FLUID MEDIA

    AVENTICS pneumatic devices are designed and tested for use

    with filtered, clean, dry, chemical free air at pressures and

    temperatures within the specified limits of the device. For use

    with media other than air or for human life support systems,

    AVENTICS must be consulted. Hydraulic cylinders are designed

    for operation with filtered, clean, petroleum based hydraulic fluid;

    operation using fire-resistant or other special types of fluids may

    require special packing and seals. Consult the factory.

    2. WARNING: MATERIAL COMPATIBILITY

    Damage to product seals or other parts caused by the use of

    noncompatible lubricants, oil additives or synthetic lubricants in

    the air system compressor or line lubrication devices voids

    AVENTICS warranty and can result in product failure or other

    malfunction. See lubrication recommendations below.

    AIR LINE LUBRICANTS! In service higher than 18 cycles per

    minute or with continuous flow of air through the device, an air

    line lubricator is recommended.* (Do not use line lubrication with

    vacuum products.) However, the lubricator must be maintained

    since the oil will wash out the grease, and lack of lubrication will

    greatly shorten the life expectancy. The oils used in the

    lubricator must be compatible with the elastomers in the device.

    The elastomers are normally BUNA-N, NEOPRENE, VITON,

    SILICONE and HYTREL. AVENTICS recommends the use of

    only petroleum based oils without synthetic additives, and with

    an aniline point between 180° F and 210° F.

    COMPRESSOR LUBRICANTS! All compressors (with the

    exception of special "oil free" units) pass oil mist or vapor from

    the internal crankcase lubricating system through to the

    compressed air. Since even small amounts of non-compatible

    lubricants can cause severe seal deterioration (which could

    result in component and system failure) special care should be

    taken in selecting compatible compressor lubricants.

    3. WARNING: INSTALLATION AND MOUNTING

    The user of these devices must conform to all applicable

    electrical, mechanical, piping and other codes in the installation,

    operation or repair of these devices.

    INSTALLATION ! Do not attempt to install, operate or repair

    these devices without proper training in the technique of working

    on pneumatic or hydraulic systems and devices, unless under

    trained supervision. Compressed air and hydraulic systems

    contain high levels of stored energy. Do not attempt to connect,

    disconnect or repair these products when a system is under

    pressure. Always exhaust or drain the pressure from a system

    before performing any service work. Failure to do so can result

    in serious personal injury.

    MOUNTING! Devices should be mounted and positioned in such

    a manner that they cannot be accidentally operated.

    4. WARNING: APPLICATION AND USE OF PRODUCTS

    The possibility does exist for any device or accessory to fail to

    operate properly through misuse, wear or malfunction. The user

    must consider these possibilities and should provide appropriate

    safe guards in the application or system design to prevent

    personal injury or property damage in the event of a malfunction.

    5. WARNING: CONVERSION, MAINTENANCE AND REPAIR

    When a device is disassembled for conversion to a different

    configuration, maintenance or repair, the device must be tested

    for leakage and proper operation after being reassembled and

    prior to installation.

    MAINTENANCE AND REPAIR! Maintenance periods should be

    scheduled in accordance with frequency of use and working

    conditions. All AVENTICS products should provide a minimum of

    1,000,000 cycles of maintenance free service when used and

    lubricated as recommended. However, these products should be

    visually inspected for defects and given an "in system" operating

    performance and leakage test once a year. Where devices

    require a major repair as a result of the one million cycles, one

    year, or routine inspection, the device must be disassembled,

    cleaned, inspected, parts replaced as required, rebuilt and

    tested for leakage and proper operation prior to installation. See

    individual catalogs for specific cycle life estimates.

    6. PRODUCT CHANGES

    Product changes including specifications, features, designs and

    availability are subject to change at any time without notice. For

    critical dimensions or specifications, contact factory.

    *Many AVENTICS pneumatic valves and cylinders can operate

    with or without air line lubrication; see individual sales catalogs

    for details.

    LIMITATIONS OF WARRANTIES & REMEDIES

    AVENTICS warrants its products sold by it to be free from defects in material and workmanship to the following:

    For twelve months after shipment AVENTICS will repair or replace (F.O.B. our works), at its option, any equipment which under

    normal conditions of use and service proves to be defective in material or workmanship at no charge to the purchaser. No charge will

    be made for labor with respect to defects covered by this Warranty, provided that the work is done by AVENTICS or any of its

    authorized service facilities. However, this Warranty does not cover expenses incurred in the removal and reinstallation of any

    product, nor any downtime incurred, whether or not proved defective.

    All repairs and replacement parts provided under this Warranty policy will assume the identity, for warranty purposes, of the part

    replaced, and the warranty on such replacement parts will expire when the warranty on the original part would have expired. Claims

    must be submitted within thirty days of the failure or be subject to rejection.

    This Warranty is not transferable beyond the first using purchaser. Specifically, excluded from this Warranty are failures caused by

    misuse, neglect, abuse, improper operation or filtration, extreme temperatures, or unauthorized service or parts. This Warranty also

    excludes the use of lubricants, fluids or air line additives that are not compatible with seals or diaphragms used in the products. This

    Warranty sets out the purchaser's exclusive remedies with respect to products covered by it, whether for negligence or otherwise.

    Neither, AVENTICS nor any of its affiliates will be liable for consequential or incidental damages or other losses or expenses incurred

    by reason of the use or sale of such products. Our liability (except as to title) arising out of the sale, use or operation of any product or

    parts, whether on warranty, contract or negligence (including claims for consequential or incidental damage) shall not in any event

    exceed the cost of replacing the defective products and, upon expiration of the warranted period as herein provided, all such liability is

    terminated. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHETHER FOR

    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE. No attempt to alter, amend or extend this

    Warranty shall be effective unless authorized in writing by an officer of AVENTIC Corporation.

    AVENTICS reserves the right to discontinue manufacture of any product, or change product materials, design or specifications without

    notice.

  • Page 6:

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DOC-9c445bf8:

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