Hydraulic Calculations – Line Sizing, Pressure Drop, Pumps and Surge
Pipes that are too small cause high pressure drop and noise; pipes that are too large waste money. SLETEC sizes lines and pumps correctly from the start.
We calculate line sizes, velocities and pressure drop (API RP 14E, Crane TP-410), pump head and NPSH, control valve and orifice pressure drop, water hammer and surge, and fire water network hydraulics.
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Typical response within 24 hours · Confidentiality assured
What we calculate (Thermal, Process and Hydraulic Calculations)
Heat transfer and duty calculation
heat transfer calculation (Excel, HTRI)
Insulation thickness and heat loss
insulation thickness (ASTM C680)
Pump sizing and NPSH check
pump size and npsh (Hydraulic Institute)
Fan and blower selection
fan / blower sizing (AMCA)
PSV sizing support
relief valve sizing (API 520 / 521)
Tank heating and cooling calculation
heating / cooling time (Excel)
Steam system calculation
steam trap / steam line (Spirax Sarco method)
HVAC load and ventilation calculation
ventilation load (ASHRAE)
Send us your drawings and data on WhatsApp (+966 55 545 8298) or email (enquiry@sletec.com) for a fixed-price quote, usually within 24 hours.
Frequently Asked Questions
Can you check if my pump is the right size?
Yes. We calculate the system curve, required head and NPSH and compare them with the pump curve.
Do you calculate pressure drop for a whole network?
Yes. We model piping networks for water, oil, gas and utilities.
Do you check water hammer?
Yes, for long lines and fast-closing valves.
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Serving all GCC countries
Send your sketch, photo or PDF today
One drawing or a complete design package — we reply with a fixed-price quote, usually within 24 hours.
Request Engineering Support
Typical response within 24 hours · Confidentiality assured