Видео с ютуба Valve Backseat
Valve Positions: Backseating -- Weekly Boiler Tips
HVACR 3 Position Service Valve, King Valve: Front-Seat, Mid-Seat, Back-Seat
Piping Engineering : Valve hydro testing (body, seat & backseat)
Basics II API 598 II Clauses II Shell & Backseat test II Independent & Combined test conditions
Трубопроводная инженерия: испытание клапанов — корпус, седло, заднее седло и пневматическое седло
How To Check Valve Integrity? Valve Hydrotest
Gate Valve Hydrostatic Pressure Test
Gate Valve Packing Replacement
Gate Valve Repacking
HP Valves DS 02 1 Assembly instruction throttle valve loose backseat DN15 50 ½in 2in
Положения сервисного клапана хладагента
HP Valves DS 02 2 Assembly instruction throttle valve loose backseat DN65 80 2½in 3in
Control valve (Globe valve)inspection animation
GATE VALVE PRESSURE TEST
How does a king valve work? A quick explanation. #hvac #howto #valve
Refrigeration service valve: front seat, back seat and mid seat
HP Valves DS 02 1 Assembly instruction throttle valve fixed backseat DN15 50 ½in 2in
valves seat(closure) test in series
How globe valves, check valves and plug valves work #valve #machine #industry