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Valves, PRVs & Backflow · 9 calculators

The right valve, the safe close.

Size valves, PRVs and air valves, and tame surge and backflow. Built for hydraulic and plumbing designers.

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Tenselo — Pressure Reducing Valve Selector
Inputs
40m³/h
5.0bar
2.5bar
250m
Select valve
Demonstration only — a simplified set of inputs is shown here. The live calculator includes additional fields and options.
Result
✓Netafim 80 Series PRV
3″ PN10 · or Amiad / Dorot 100 Series
3″
Valve size
1.7 : 1
Reduction ratio
2.2 m/s
Velocity
2.5 bar
Outlet
Low
Cavitation risk
2 s
Close time
Real output from the Tenselo Pressure Reducing Valve Selector. Confirm the exact selection against the manufacturer's data.

Inside this pack — 9 calculators

Every tool this discipline reaches for, in one place:

Control Valve CvPressure Sustaining ValvePRV SelectorSolenoid Valve SizingAir Valve SelectionBackflow / RPZ SizingCheck Valve Nrv SelectionRelief Valve SizingWater Column Separation

Why it earns its place

Less spreadsheet wrangling, fewer call-backs, sign-off you can defend.

Valve sized to flow

Body size from velocity, named to real product lines that interchange.

Cavitation kept low

Reduction ratio checked so the PRV doesn't chatter or erode.

Surge-safe closing

Close times worked over the downstream main so you don't slam the line.

Every result, on your letterhead

One click turns any calculation into a clean, fully customisable PDF report — branded with your company logo, ready to drop into a submission, quote or design pack.

  • Your logo, company name and project details on every page
  • Inputs, results and the method, all documented
  • Professional output you can hand to a client or approver
Pressure Reducing Valve Selector — Calculation Report
Valves, PRVs & Backflow · Tenselo
Duty40 m³/h · 5 → 2.5 bar
ValveNetafim 80 Series 3″ PN10
Reduction1.7 : 1 (low cavitation)
Close time2 s (surge-safe)
Prepared with TenseloPage 1 of 1

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