One Piece Stainless Steel Ball Valve – Reduced Port, 316, 1000 WOG, PT/NPT/PF, 1/4″–3″ (R-1B)

Descrizione del prodotto

A one piece stainless steel ball valve valutato 1000 WOG, with the body cast as a single piece and welded closed. 316 (CF8M) is the stock material; 304 (CF8) is made to order. PTFE seats, manual quarter-turn lever, reduced port, −20 °C to +180 °C. Two end builds: femmina × femmina (F×F) da 1/4″ a 3″, e maschio × femmina (M×F) da 1/4″, 3/8″ e 1/2″.

Because the body is one piece instead of two or three bolted or screwed sections, there is no body joint — one fewer place for the valve to leak. The trade-off is honest: it cannot be opened for service, and the bore is one pipe size smaller than the line. We say so plainly further down, and we point you at the valve you should buy instead.

Cosa significa in realtà "1000 WOG"

WOG sta per Acqua, petrolio, gas. Una potenza nominale di 1000 WOG indica che la valvola è progettata per Pressione di esercizio a freddo, senza urti, pari a 1000 psi on those media.

Three things buyers get wrong about it:

• WOG è un indice di resistenza al freddo. It is not a steam rating. This valve runs from −20 °C to +180 °C, set by the PTFE seats — tell us your line temperature and we will confirm it suits.
• “Non-shock” is part of the rating. In una tubazione soggetta a colpi d’ariete o in cui la pompa si avvia bruscamente si verificano picchi di pressione ben superiori alla pressione di esercizio normale. Il dimensionamento deve tenere conto del picco, non del valore indicato dal manometro.
• On this valve, “gas” means compressed air. Fuel gas lines (natural gas, propane) call for a gas-listed valve, and this is not one.

Se la pressione della vostra linea supera i 1000 psi a freddo, questa valvola non è quella giusta: comunicateci la pressione e vi proporremo quella più adatta.

F×F o M×F — Quale ti serve?

• Femmina × Femmina (F×F) — entrambe le estremità sono dotate di un raccordo o di un tubo maschio. La scelta più versatile, nonché l’unica disponibile per diametri superiori a 1/2″ (fino a 3″).
• Maschio × Femmina (M×F) — one male end screws straight into a female port, so you save a fitting and shorten the assembly. Available in 1/4″, 3/8″ and 1/2″ only. If you need M×F above 1/2″, see the two-piece MxF ball valve (1/2″–2″, full port).

Dimensions for both builds are on the PDF dimension sheets at the top of this page.

Specifiche tecniche

Quando non scegliere questa valvola

Applicazioni

A reduced-port, non-serviceable body is a deliberate trade: the smallest envelope and the fewest joints of the three ball valve body types, at the lowest cost of the three. It belongs where those three things matter more than full flow or in-line repair.

• Instrument and gauge line isolation — the shut-off ahead of a pressure gauge or transmitter, so the instrument can be changed without draining the line. Open it slowly; this is an isolation valve, not a throttling one.
• OEM machinery and skid-mounted systems — small-bore utility shut-offs built into a machine frame or a packaged skid, where the valve is replaced as a unit rather than rebuilt in place.
• Installazioni in spazi ristretti — panels, cabinets and pipe runs where a two-piece or three-piece body will not fit. With no mid-body joint there is nothing to add length to the body.
• Compressed air branch isolation — take-offs from a plant air header to a machine, a filter-regulator or a blow-down point.
• Water and oil utility lines — general shut-off on cooling water, wash-down, lubrication and fuel-oil transfer lines up to 1000 psi cold.

Not for pump suction lines (use a full-port valve), fuel gas, steam, potable water or oxygen service — see the table above.

Acquistare da noi

• Manufacturer, not a trading company. Our own factory in Taiwan, stainless valves since 1999.
• Certificato di macinazione su richiesta.
• One supplier for the whole line — valves, fittings and strainers, one shipment, one set of documents.

Tell us the size, F×F or M×F, 316 or 304, and the line pressure. That is enough for us to quote.

Domande frequenti

What is a one piece stainless steel ball valve?

A ball valve whose body is cast as a single piece and welded closed, instead of being bolted or screwed together from two or three sections. There is no body joint, so there is one fewer place for a line to weep. The trade-off is that the valve cannot be opened for service and the port is reduced — the bore is one pipe size smaller than the line. If you want the same no-body-joint construction with a full-port bore, see the seal-welded two-piece ball valve (V-2B / V-2C).

Cosa significa 1000 WOG?

WOG stands for Water, Oil, Gas. A 1000 WOG rating means the valve is rated for 1000 psi of cold, non-shock working pressure on those media. It is not a steam rating. On this valve “gas” means compressed air — it is not listed for fuel gas.

What is the working temperature range?

−20 °C to +180 °C, set by the PTFE seats. Tell us your line temperature and we will confirm the valve suits it.

Quali taglie sono disponibili?

Female × female (F×F) from 1/4″ to 3″ — 1/4″ to 2″ as standard, 2-1/2″ and 3″ on request. Male × female (M×F) in 1/4″, 3/8″ and 1/2″. Dimensions are on the two PDF dimension sheets at the top of this page.

Quali tipi di filettature fornite?

PT (taper) is the standard thread; NPT and PF are also in stock.

316 or 304 — which should I order?

316 (CF8M) is the stock material and the one to choose wherever chlorides are present: brine, seawater, coastal air, most chemical service. The molybdenum in 316 is what resists chloride pitting. 304 (CF8) is made to order for general water, air and oil duty.

È possibile aprire questa valvola per pulirla o ripararla?

No. The body is welded, so it cannot be taken apart. That is the trade-off for having no threaded body joint to leak. If you need to service the valve in line, buy the valvola a sfera a tre pezzi instead. If you only need full-port flow and still want no threaded body joint, the seal-welded two-piece ball valve (V-2B / V-2C) is the one to look at.

Si tratta di una valvola a passaggio totale?

No. It is a reduced (standard) port valve — the bore is smaller than the pipe. If you need full bore flow, buy the seal-welded two-piece ball valve.

Posso montarci un attuatore?

No. This body has no actuator mounting pad. If you need automation, buy the one-piece pneumatic ball valve, which has the ISO 5211 pad cast into the body.

Potete fornirci un certificato di conformità del materiale?

Sì. Su richiesta è disponibile un certificato di lavorazione.

È previsto un quantitativo minimo d'ordine?

No. Dicci di cosa hai bisogno e ti faremo un preventivo.