A floating ball valve offers a straightforward way to isolate a process line: turn the handle through a quarter turn to open or close the passage. Its compact construction makes it a familiar choice for plant piping, utility systems and equipment connections.
Farpro supplies cast steel and stainless steel floating ball valves, including the Q41F and Q41Ni series shown below. Browse the models to compare body materials, seats and dimensions for your installation.
How a Floating Ball Valve Seals
The stem turns the ball, while the seats hold it within the body. There are no trunnion supports fixing the ball along its rotational axis. Under line pressure, the ball moves slightly toward the downstream seat to form the shut-off seal.
The simple quarter-turn mechanism works well for local isolation and can also be paired with an actuator. Za zamjenu, check the connection and installation length as well as the valve size; two valves with the same nominal diameter do not necessarily fit the same space. Naše valve replacement guide explains which installation dimensions to record.
| Materijal plutajućih kuglastih ventila | Standard | Aktivirani način rada | Metoda brtvljenja | Primjene i upotrebe |
|---|---|---|---|---|
| lijevano željezo, lijevanog čelika, ne hrđajući Čelik | API, IZ, ON, KS, U, BS, EAC, NF | ručna operacija, električni pokretač, aktiviran vodom/zrakom/uljem | Tvrda brtva, meka brtva, jednostrana brtva, dvostrani pečat, itd. | oplemenjivanje ugljena, ispuštanje jalovine i troske u rudnicima i elektranama, pročišćavanje otpadnih voda u gradovima, industrijski cjevovodi, profesionalni sustavi cjevovoda za hranu, sanitacija, lijek, itd. |
Vrste plutajućih kuglastih ventila
Q41F Flanged Floating Ball Valve – Lijevanog čelika
The Q41F is a flanged floating ball valve for quarter-turn isolation in industrial piping. The ball is held between its
Q41F Floating Ball Valves: Materials and Sizes
The Q41F floating ball valve is a flanged isolation valve. Its ball is held between the seats rather than supported
Plutajući kuglasti ventil od lijevanog čelika – Q41Ni
Farpro Q41Ni plutajući kuglasti ventil vrsta je kuglastog ventila koji koristi plutajuću kuglu za kontrolu protoka
Floating or Trunnion-Mounted?
The difference is how the ball is supported. In a floating design, line pressure moves the ball toward its seat. A trunnion-mounted valve supports the ball at its rotational axis and uses the seats to maintain sealing contact.
As size and differential pressure increase, the way those loads reach the seats affects operating torque. That makes ball support an important part of selection, alongside the bore, seat material and operating conditions.
Seat material is a separate choice: floating and trunnion-mounted designs can both use soft or metal seats. The support arrangement alone does not tell you the temperature limit or sealing performance of a particular valve.
For a closer look at the range, usporediti cast steel Q41F with the stainless steel and metal-seat models listed above.
Finding the Right Replacement
If you have a valve to replace, a clear photograph and the existing model often make a useful starting point. We can help you work through the differences between the old valve and the available options before preparing a quotation.
For a new line, send us the valve specification you are working to. You do not need to settle every product detail before getting in touch.
O Farpro proizvođaču ventila
Farpro Valve veliki je svjetski proizvođač ventila koji se bavi istraživanjem, razvoj, proizvodnja i prodaja ventila.
Naši standardi proizvoda uključuju: GB/JB, API, ANSI, AWWA, IZ, ON, GOST, NF, itd.
Naši ventili dostupni su u 12 glavne kategorije, 200 serije i 4000 veličine, uključujući zasune, kuglasti ventili, kuglasti ventili, leptir ventili, povratni ventili, membranski ventili, ventili za smanjenje tlaka, čep ventili, zamke, itd.
Godišnja proizvodnja doseže 80,000 tona. Svi proizvodi imaju široku primjenu u nafti, petrokemijski, kemijski, električna energija, metalurgija, očuvanje vode, konstrukcija, farmaceutski, odvodnje i dr. polja.
Naši proizvodi dobro se prodaju na tržištima Njemačke, Engleska, Francuska, Italija, Brazil, Poljska i više od 30 zemljama i regijama u Europi, Srednja Azija, Zapadna Azija, itd.