Producer of Pipe Stoppers, Low Pressure Applications - Mechanical Research & Design Pipe Stoppers - Your Trusted Source for Sealfast products

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    Pipe Stoppers: Low Pressure Applications

    Pipe Stoppers - Low Pressure Pipe Stoppers

    Low Pressure Applications for Pipe Stoppers

    See Our Low Pressure Pipe Stoppers Chart

     Applications for our durable pipe stoppers have included the testing, repair, and maintenance of the following piping systems including the by-pass of damaged line sections for continued sections.
    • Chilled water lines
    • Internal plant lines for treatment and purification
    • Intermediate transmission lines
    • Subaqueous transmission and discharge
    • Force main and water main
    • Pumping and lift stations
    • Nuclear cooling lines, and special plant situations
    • Irrigation supply
    • Fire protection lines

    Low Pressure Pipe Stoppers

    LP PIPE PLUG CHART
    NOM SIZE PART # PORT (NPT) UNEXPANDED
    (O.D.)         		MAX EXPAN THICK "L"(in.) WT (lbs.)
    4 LP-4-378-2 1/4 3.88 1/4 1-3/4 3
    5 LP-514-500-2 1 5.00 1/4 1-3/4 3
    6 LP-6-558-2 1 5.63 1/4 1-3/4 3
    6 LP-6-51316-2 1 5.81 1/4 1-3/4 4
    7 LP-7-658-2 1 6.63 1/4 1-3/4 5
    8 LP-8-71116-2 1-1/2 7.69 3/8 2-1/4 6
    10 LP-10-91116-2 2 9.69 3/8 2-1/4 8
    12 LP-12-1112-2 2-1/2 11.50 3/4 2-1/4 18
    12-1/2 LP-1212-1200-2 2 12.00 3/4 2-1/4 19
    13 LP-13-121316-2 2-1/2 12.81 3/4 3-3/8 19
    14 LP-14-13716-2 2-1/2 13.44 3/4 3-3/8 22
    15 LP-15-1418-2 2-1/2 14.13 3/4 3-3/8 25
    15 LP-15-14916-2 2-1/2 14.56 3/4 3-3/8 25
    16 LP-16-15916-2 3 15.56 3/4 3-3/8 30
    18 LP-18-1700-2 3 17.00 1 5-1/4 46
    19 LP-19-1818-2 3 18.13 1 5-1/4 48
    20 LP-20-1918-2 3 19.13 1 5-1/4 50
    21 LP-21-20116-2 3 20.06 1 5-1/4 54
    24 LP-24-2300-2 3 23.00 1 5-1/4 71
    25 LP-25-2418-2 3 24.13 1 5-1/4 73
    25 LP-2512-2458-2 3 24.63 1 5-1/4 75
    26 LP-26-2512-2 3 25.50 1 5-1/4 78
    27 LP-27-2634-2 3 26.75 1 5-1/4 80
    29 LP-29-2814-2 3 28.25 1 5-1/4 88
    30 LP-30-2878-2 3 29.00 1 7 105
    36 LP-35-3514-2 3 35.25 1 7 130
    42 LP-42-4138-2 3 41.38 1 7 185
    48 LP-48-4738-2 3 47.38 1 7 215
    54 LP-54-5338-2 3 53.38 1 7 250
    60 LP-60-5914-2 3 59.25 1 7 310
    66 LP-66-6514-2 3 65.25 1 7 400
    72 LP-72-7114-2 3 71.25 1 7 435
    78 LP-78-7600 3 76.00 2 9 475
    84 LP-84-8200 3 82.00 2 9 500
    96 LP-96-9400 3 94.00 2 9 550
    102 LP-102-10000 3 100.00 2 9 650
    108 LP-108-10600 3 106.00 2 9 750
    120 LP-120-11800 3 118.00 2 9 850
    144 LP-144-14200 3 142.00 2 9 1000


    ENGINEERING EXPERTISE TO DEVELOP 
    NON-STANDARD SIZES, CONFIGURATIONS & APPLICATIONS

    MADE INTHE USA


      Mechanical Research & Design, Inc.

    		 
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    Fax:     		3510B South 26th Street
    Manitowoc, WI.  54220

    (800) 645-0808
    (920) 684-5608

    (920) 684-9258     		 


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