Top Suppliers BC-W Metric Thread Bite Type Tube Fitting for Angola Factories

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BRANCH TEE FITTINGS WITH SWIVEL NUT   PART NOMBER MPa TUBE O D. d1 L1 l1 l2 S2 S3 O型圈 bar BC-06L L 06 M12x1.5 27 12.0 26.0 14 12 OR4.5×1.5 315 BC-08L   08 M14x1.55 29 14.0 27.5 17 12 OR6.5×1.5 315 BC-10L   10 M16x1.55 30 15.0 29.0 19 14 OR8x1.5 315 BC-12L   12 M18x1.5 32 17.0 29.5 22 17 OR10x1.5 315 BC-15L   15 M22x1.5 36 21.0 32.5 27 19 OR12x2 315 BC-18L   18 M26x1.5 40 23.5 35.5 32 24 OR15x2 315 BC-22L   22 M 30×2 44 27.5 38....


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Top Suppliers BC-W Metric Thread Bite Type Tube Fitting for Angola Factories Detail:

BRANCH TEE FITTINGS WITH SWIVEL NUT

17

 

PART NOMBER

MPa

TUBE O D.

d1

L1

l1

l2

S2

S3

O型圈

bar

BC-06L L 06 M12x1.5 27 12.0 26.0 14 12 OR4.5×1.5 315
BC-08L   08 M14x1.55 29 14.0 27.5 17 12 OR6.5×1.5 315
BC-10L   10 M16x1.55 30 15.0 29.0 19 14 OR8x1.5 315
BC-12L   12 M18x1.5 32 17.0 29.5 22 17 OR10x1.5 315
BC-15L   15 M22x1.5 36 21.0 32.5 27 19 OR12x2 315
BC-18L   18 M26x1.5 40 23.5 35.5 32 24 OR15x2 315
BC-22L   22 M 30×2 44 27.5 38.5 36 27 OR20x2 160
BC-28L   28 M 36×2 47 30.5 41.5 41 36 OR26x2 160
BC-35L   35 M 45×2 56 34.5 51.0 50 41 OR32x2.5 160
BC-42L   42 M 52×2 63 40.0 56.0 60 50 OR38x2.5 160
BC-06S S 06 M14x1.5 31 16.0 27.0 17 12 OR4.5×1.5 630
BC-08S   08 M16x1.5 32 17.0 27.5 19 14 OR6.5×1.5 630
BC-10S   10 M18x1.5 34 17.5 30.0 22 17 OR8x1.5 630
BC-12S   12 M20x1.5 38 21.5 31.0 24 17 OR10x1.5 630
BC-14S   14 M22x1.5 40 22.0 35.0 27 19 OR11x2 630
BC-16S   16 M24x1.5 43 24.5 36.5 30 24 OR13x2 400
BC-20S   20 M 30×2 48 26.5 44.5 36 27 OR16.3×2.4 400
BC-25S   25 M 36×2 54 30.0 50.0 46 36 OR20.3×2.4 400
BC-30S   30 M 42×2 62 35.5 55.0 50 41 OR25.3×2.4 400
BC-38S   38 M 52×2 72 41.0 63.0 60 50 OR33.3×2.4 315

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  • Lab experiment demonstrating the energy losses associated with flow through various hydraulic fittings.

    Laboratory Experiment 13: Local Losses
    ENGR 318 — Fluid Mechanics

    Purpose

    To experimentally determine the local loss “k” values for several different pipe fittings, and compare them to known, ‘typical’ k values for these same fittings.

    Background
    In addition to energy loss due to boundary friction in pipes, losses in energy can also be attributable to instantaneous losses due to changes in pipe geometry or diameter, and as water flows through a variety of different turbulence-inducing fittings. These instantaneous, minor losses also occur at the entrances and exits of pipe sections that interact with tanks or reservoirs.

    Minor losses can be expressed in terms of head:

    Where ho = local loss (m)
    V = average flow velocity (m/s)
    g = gravitational acceleration (m/s2)
    k = loss coefficient (unitless)

    Minor loss coefficients have been established for a variety of different fittings and flow geometries, although variation exists as a function of factors such as diameter, weld type, material, manufacturer, etc. The fittings to be tested in this experiment, along with typical k values, are shown in Table 1 below. In cases of an expansion or contraction between two pipes, the head loss can either be calculated by multiplying a loss coefficient by an upstream or downstream velocity head (depending on convention).

    In this experiment, pressure differences will be measured to determine local losses. Specifically, local loss ho can be measured experimentally by:

    Where Δp = measured pressure change across fitting (N/m2)
    γ = unit weight of water (N/m3)

    Table 1 — Typical k values for different fitting types, along with position number on the pipe rack (see Figure 1), and which pipe / flow path each fitting lies along.

    Fitting Position Number Pipe Location Typical K
    45-degree “Y” 4 A 0.76
    Long radius 90-degree bend 6 A 0.4
    Ball valve 12 A 0.04 — 0.1 (fully open)
    90-degree “T” 13 A 1.8
    90-degree mitre 14 A 1.7
    Short radius 90-degree bend 15 A 0.2
    Gate Valve 21 A 0.03 — 0.2 (fully open)
    45-degree elbow 5 B 0.7
    90-degree elbow 22 B 0.9
    Globe valve 20 B 3 — 10 (fully open)
    Sudden contraction 3 C 0.4 (X outgoing velocity head)
    Sudden enlargement 16 C 0.7 (X incoming velocity head)

    Experimental Procedure:

    1. Establish a constant flow through the experimental apparatus, and ensure that all air has been expelled from the system by observing flow through the venturimeter.
    2. Measure the actual flow rate through the apparatus by collecting a volume of water in the discharge tank and recording the time in which collection took place.
    3. Using the pressure meter, measure the pressure loss between the two pressure taps for the fitting being analyzed.
    4. Repeat using the other fittings in the network.
    5. Measure the temperature of the water.

    Report

    • For each fitting, calculate a k value for each flow rate using the pressure loss information obtained in lab. Also compute the average k value for each fitting.
    • Compare between experimental k values (determined by lab measurements) and the typical k values that are provided.
    • Include a summary table of results in the body text. Also attach a printout of your excel calculations as an appendix to the report, including a row explaining how each column in the spreadsheet was calculated.
    • In the discussion of results, identify which fittings had experimental k values that varied considerably from the typical k values that were provided. Attempt to explain the source of these differences, in terms of what’s happening inside of the fitting.
    • Include a brief section in the report addressing your impression of the “virtualized” aspect of this experiment. In what ways is a virtualized experiment better than an in-person lab? In what ways is it worse? What other comments / impressions do you have about delivering lab-related content in this way?

    Figure 1 — Armfield Pipe Rack Apparatus.

    Flow Flow Path Pipe Dia. (mm) Fitting # Δp (kPa) Volume collected (L) Time (s)
    High A 17 45-degree “Y” 4
    A 17 Long radius 90° bend 6
    A 17 Ball valve 12
    A 17 90-degree miter 14
    A 17 90-degree “T” 13
    A 17 Short radius 90° bend 15
    A 17 Gate Valve 21
    B 17 45-degree elbow 5
    B 17 90-degree elbow 22
    B 17 Globe valve 20
    C 17/8 Sudden contraction 3
    C 8/17 Sudden enlargement 16
    Low A 17 45-degree “Y” 4
    A 17 Long radius 90° bend 6
    A 17 Ball valve 12
    A 17 90-degree “T” 13
    A 17 90-degree mitre 14
    A 17 Short radius 90° bend 15
    A 17 Gate Valve 21
    B 17 45-degree elbow 5
    B 17 90-degree elbow 22
    B 17 Globe valve 20
    C 17/8 Sudden contraction 3
    C 8/17 Sudden enlargement 16

    It is a very good, very rare business partners, looking forward to the next more perfect cooperation!
    5 Stars By Gemma from Greece - 2015.06.18 19:26
    A nice supplier in this industry, after a detail and careful discussion, we reached a consensus agreement. Hope that we cooperate smoothly.
    5 Stars By Beatrice from Pakistan - 2016.08.21 14:13

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