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FLU-04 · Fluids and energy

Sizing of a safety valve to EN ISO 4126

Flow to be discharged, orifice area and selection of the safety valve for gases, vapours or liquids.

EN ISO 4126-1EN ISO 4126-7
Proven service: established method, fixed price and delivery. If your case falls outside the standard or you need help choosing the right service, request a consultation or call +39 333 829 7733.

Description

EN ISO 4126 sets the formulae for the discharge capacity of safety valves: from the flow to be relieved and the fluid conditions you obtain the minimum orifice area and select the valve from the manufacturer's catalogue.

What it includes

  • Relief flow of the stated scenario
  • Minimum orifice area for gas, vapour or liquid
  • Selection of the valve and check of the certified capacity
  • Check of the inlet pressure drop and of the back pressure

What we need from you

  • Overpressure scenario and flow to be discharged
  • Fluid, set pressure and temperature
  • Inlet and discharge piping

Data is sent after the order confirmation, by email or with a sharing link. On request we sign a non-disclosure agreement before receiving the files.

What you receive

Calculation report in PDF

Not included

  • Identification of the overpressure scenarios of the plant
  • Two-phase flows

These activities can be added with a dedicated quote.

How ordering works

  1. Request the pricePress «Get the price», choose the options and send the request: it is free and puts you under no obligation.
  2. Receive the priceWe send you the price of the service and the delivery time by e-mail, with the options you chose.
  3. Payment and dataYou pay by bank transfer and send the input data: the delivery days start from here.
  4. DeliveryYou receive the report in PDF and the agreed files, with an electronic invoice.

FAQ

Is the price really fixed?

Yes, for the scope described on this page: the price stated in the offer, plus VAT, including the options you selected. If the data you send show work that differs from the standard one, we tell you before starting and you decide whether to go ahead with a dedicated quotation or to cancel at no cost.

How do I pay?

By advance bank transfer, on the basis of the offer you receive after the price request. Work starts when the payment and the input data have been received.

When will I receive the work?

Within 4 working days of receiving payment and all the required data; with the urgent option the time is halved.

Can I order as a private individual?

Yes. The offer also states the price including VAT, and as a consumer you have the right to withdraw within 14 days under the terms of sale.