Angle and Tee Type Strainers

Vee Bee angle type strainers and tee strainers are low cost solutions for large nominal bore filtration requirements and can accommodate high open area and high line pressures.

tee type strainer

Applications of T Type Strainers

Vee Bee T type strainers are designed to protect operations and deliver optimum flow and reliability to each exacting application requirement.

Applications vary from the largest gas pipelines >70” diameter to small bore protection applications >2” for either onshore or offshore plant locations.

Where critical systems must be protected from downtime or expensive maintenance, strainer reliability is crucial.


Vee Bee designs and engineers the most reliable and optimised filtration systems for your project.

Using over 60 years of strainer design expertise, Vee Bee provides customised strainers to the highest flow performance possible.


The following configurations of Tee Type strainer are available:

Type-A: Straight flow

veebee tee strainer type a veebee tee type a strainer basket
  • Used for straight flow only
  • Most optimised design for pressure drop amongst all Tee-type strainers
  • Sealing occurs at guiderails which may allow light bypass hence suitable for coarser filtration only.

Type-B: Right angled flow

veebee tee strainer type b veebee tee type b strainer basket
  • Facilitates change in direction of flow at right angle.
  • Inherently stronger construction compared to Type-C angle strainer because of its “internal pressure” configuration owing to its flow direction.
  • Pressure drop is generally between Type-A and Type-C strainer.
  • Positive seal at flat surfaces of seating ring and the element ring so suitable for fine filtration.

Type-C: Right angled flow

veebee tee strainer type c veebee tee type c strainer basket
  • Facilitates change in direction of flow at right angle
  • Requires internal reinforcement due to “external pressure” configuration owing to its flow direction
  • Pressure drop is generally higher than both Type-A and Type-B strainer
  • Positive seal at flat surfaces of seating ring and the element ring so suitable for fine filtration.

The following details are required when defining the correct strainer for your operation.

VeeBee can advise both at the start and at any time during the specification process.

Tee type strainer selection – design criteria

Configuration of strainer (Straight flow or Angle Type)

For an Angle Type strainer: direction of flow (“In-to-out” or “Out-to-in”)

Strainer detail

  • Connection Size and type (3” to >82”): Flanged Ends ANSI, BS4504, DIN, BS10, JIS
  • BW Ends
  • Pipe SCH: 40 to Sch 100 + Special Schedules available upon request or as design requires
  • Class rating: Up to class 2500
  • Retention required (micron rating or mesh size): 25-185 Micron typically
  • Design pressure/temperature values
  • Material of construction: Carbon Steel, Low Temperature Steel, S/S, Duplex S/S Alloy
  • Steel or other materials available
  • Corrosion allowance
  • Burst pressure requirement (provide operating temperature and pressure)
  • Percentage open area
  • Applicable design codes

Strainers are most often employed either to protect critical equipment or to condition the properties of a fluid – ensuring it does not contain certain particulate elements.

Managing flow to achieve maximum efficiency

Placing a strainer into a pipeline will inevitably contribute to the overall hydraulic resistance of the system; something that can detrimentally alter the efficiency of the process output.

Vee Bee is able to accurately predict the hydraulic resistance of its strainers (Pressure Drop, ΔP), based on any design and flow conditions.

This is achieved using its extensive knowledge and experience of Computational Fluid Dynamics.
To properly simulate the ΔP performance of a strainer, VeeBee usually requires the following information in order:

Pressure Drop (DP) Performance – essential data

  1. Fluid properties
  2. Liquid
  3. Operating density
  4. Operating viscosity
  5. Gas
  6. Operating density or Molecular weight and operating P/T
  7. Operating viscosity
  8. Mass flow rate/Volume flow rate
  9. Allowable DP*

*Should the process require a lower or ‘targeted’ ΔP, Vee Bee has extensive experience in optimising strainer design to meet the lowest possible values. This can also include full piping systems.


Vee Bee T strainers feature either bolted or quick opening covers according to operational and application requirements.


Flanged Ends ANSI, BS4504, DIN, BS10, JIS
BW Ends from Sched 40 to Sch 100 + Special Sched

Further details contact

Tel. +44 1384 378 884

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