Butt weld ball valve — reduced port, welded in once
A reduced port butt weld ball valve in cast CF8 / CF8M: a smaller body carried on full-size weld ends, welded into the line once. PTFE seats, 1000 WOG, sizes 1″ to 4″.
Welded in once, then left alone.
Model V-2B-BW is a pipeline valve in the plainest sense: it arrives with beveled butt weld ends, gets welded into the run once, and stays there for the life of the line. Body, cap and ball are cast to ASTM A351 in CF8 (cast 304) or CF8M (cast 316), and every soft part in the flow path — both seats, the body gasket and the stem packing — is PTFE.
V-2B-BW covers 1″, 2″, 2-1/2″, 3″ and 4″, and both CF8 and CF8M 1000 WOG builds are stock items. Weld-end outside diameters run from 38.1 mm on the 1″ valve to 101.6 mm on the 4″; the full list, with bores and end-to-end lengths, is on the dimension sheet above.
Reduced port — and why it costs less
This is a reduced port valve. The bore runs 34.6 mm on the 1″ valve, 38 mm on the 2″, 50 mm on the 2-1/2″, 65 mm on the 3″ and 80 mm on the 4″ — the figures are on the dimension sheet above, and they are the numbers to check against your flow requirement.
From 2″ up, the body is one nominal size down from the weld ends: a 2″ valve carries the body of a 1-1/2″, a 3″ carries the body of a 2-1/2″. That is where the saving comes from — less casting, less machining, a smaller ball for the same line size. On isolation duty, where the valve sits fully open or fully closed, the smaller bore costs pressure drop only while flow is passing; on a long welded run with many valves, that trade usually pays.
When the process needs a full bore, our socket weld ball valve carries one on the same two-piece platform.
Once the ends are welded, the only joints left on the line are the ones inside the valve itself. That is the point of this build: a valve you install once and leave alone. If the line will need in-place seat service later, look at our extended butt weld ball valve instead — its body unbolts while the welded ends stay in the pipe.
- Model
- V-2B-BW
- Body
- A351 CF8 / CF8M
- Size range
- 1″ · 2″ · 2-1/2″ · 3″ · 4″
- Connection
- Butt weld
- Seat
- PTFE
- Pressure
- 1000 WOG
- Temperature
- −20°C to 180°C
- Port
- Reduced port — bore 34.6 mm (1″), 38 mm (2″), 50 mm (2-1/2″), 65 mm (3″), 80 mm (4″)
- Operation
- Manual quarter-turn
Where it gets used
Every valve leak tested.
Each unit is checked for leakage before shipment.
What does 1000 WOG mean on a ball valve?
WOG stands for water, oil, gas. A 1000 WOG ball valve is rated for 1,000 psi — about 69 bar — of cold, non-shock working pressure on those media. It is a cold rating, and it says nothing about steam service.
Is this a full port valve?
No — this is a reduced port valve. The bore is 34.6 mm on the 1″ valve, 38 mm on the 2″, 50 mm on the 2-1/2″, 65 mm on the 3″ and 80 mm on the 4″; the figures are on the dimension sheet. From 2″ up the body is one nominal size down from the weld ends. If you need a full bore on a welded line, our socket weld ball valve is full port on the same two-piece platform.
Should I pick CF8 (304) or CF8M (316)?
CF8 covers most water and general industrial service. Pick CF8M when the media carries chlorides — brine, coastal water, many process chemicals — because the molybdenum in 316 resists chloride pitting. Both grades are stock.
Can the valve be serviced after it is welded in?
Not in place. The two-piece body is welded into the line, so servicing it means cutting the pipe — that is the trade-off for the simplest, most economical welded valve. If you expect to replace seats in place, choose the extended butt weld ball valve: its center body unbolts while the welded ends stay in the line.
What pipe does the weld end fit?
Each size has a fixed weld-end outside diameter and wall thickness — 38.1 mm OD and 1.6 mm wall on the 1″ valve, 50.8 mm OD and 2 mm wall on the 2″, up to 101.6 mm OD on the 4″. The full list is on the dimension sheet. Send your pipe standard and schedule with the inquiry and we confirm the fit before quoting.
