Threaded SS316, 800 PSI globe valve, ½" to 2"

A rising‑stem globe valve for throttling and isolation, in ½" to 2" (DN15 to DN50), with NPT threaded ends and a body in Forged stainless steel F316, Stellite faced seat. Rated 800 PSI, designed and manufactured to API 602, inspected and tested to API 598.

Inside, flow turns up through a seat opening, past a disc that lifts squarely off the seat, and turns down again. The stem moves the disc towards or away from the seat, so the gap changes smoothly with stem position and a flow can be set and held. That is the job a gate valve cannot do — a gate parked part open vibrates and wears its seat. The cost is pressure drop even fully open, because the path turns twice. Globe against gate.

• Rated 200 °C, as the catalogue states. For duty above that, ask us to confirm the ceiling with the factory before you order — the construction is forged 316 with graphite packing and a Stellite faced seat.
• The sectional drawing for this variant is available on request. The 16‑item parts list below is published in full with the manufacturer’s item numbers, and the forged steel 800 PSI section shows the same arrangement in carbon steel.
• The seat is Stellite faced, like the carbon steel version. Item 1 reads F316 + STL and item 2 316 + STL — both the seat and the disc face are hardfaced. On a throttling valve that is what stops the seating surfaces washing out, because flow through a narrow gap is fast.
• ⚠ The gland flange is F304, not 316. Item 11. It is not in the wetted path, but on a valve bought specifically for corrosion resistance it is worth knowing that one external part is a lower grade.
• NPT only. No BSPT option on this variant. If you need BSPT in stainless, the 200 PSI valve offers both — at a quarter of the pressure.

Three angles on the same valve. Photographs of the stocked item, not renders.

No sectional drawing survives for this variant — see the note below. The forged steel 800 PSI section shows the same arrangement in carbon steel.

• The item numbers are the manufacturer’s. They are the callout numbers from the sectional drawing, which is why a number can repeat a part name at a different position. We have left them exactly as published so a spares order matches the drawing.
• The seating surfaces are what wear. On a valve that runs part open, flow through the gap is fast, and the disc face and seat take that. They are the parts to ask about first.
• Everything here is published, not on request. If you need to know what touches your fluid, the whole list is above.

• ⚠ Do not design to these figures. They are manufacturing proof tests well above the working rating — the shell test proves the body, the seal test proves the disc against its seat. The valve is not intended to operate there.
• Gas tightness is 0.6 MPa, the same figure across all ten variants in this range. It is the one number that does not move with class, size or material.
• The temperature ceiling is the material, not a seat insert. A globe valve seals metal to metal and packs the stem with graphite, which is why the steel variants here reach 425 °C where a PTFE‑seated ball valve stops at 150. All ten compared.

All ten, side by side: the comparison table. Other variants: ANSI 150 cast iron · ANSI 150 cast steel · ANSI 150 forged steel · ANSI 150 SS316 · JIS 10K cast iron · JIS 10K SS316 · Threaded forged steel · Threaded SS316 200 PSI · Weld end forged steel.

All globe valves · gate valves for straight‑through isolation · ball valves for quarter‑turn · flange end ball valves · swing check valves · Y‑strainers to keep grit off the seat · needle valves for fine control at pressure · all low pressure valves.