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10 variants · the throttling valve · to 425 °CGlobe valves, 1/2" to 6", ANSI · JIS · threaded · weld end
Rising‑stem throttling valves in ten variants — flanged ANSI 150 and JIS 10K, threaded NPT and BSPT, and socket weld — in cast iron, cast steel, forged steel A105 or SS316. Unlike a gate valve, a globe valve is designed to run part‑open. That is the whole reason to choose one.
What a globe valve is for
Regulating flow — the job a gate valve cannot do.
In a globe valve the flow turns. It comes up through a seat opening, past a disc that lifts squarely off that seat, and turns down again to leave. The stem moves the disc towards or away from the seat rather than sliding a gate across the bore, and that geometry is what makes the valve controllable: the gap between disc and seat changes smoothly and predictably with stem position, so flow can be set and held anywhere between shut and fully open.
The cost is pressure drop. Because the path turns twice, a globe valve restricts the line even fully open, where a gate valve presents a clear bore. So the two are not alternatives — they do different jobs. A gate valve isolates and must never be throttled. A globe valve throttles, and is also perfectly capable of shutting off.
- This is the valve you throttle. Running it part‑open is normal service, not abuse. A gate valve held part‑open erodes its own seat permanently; a globe valve is built for it.
- ⚠ It is not a drop‑in replacement for a gate valve. A globe valve is physically longer face‑to‑face at the same size — at 2" in cast steel it is 203 mm against 178 mm for the gate. It will not fit the gap a gate valve came out of. The comparison.
- Expect a pressure drop even wide open. The turning flow path is the price of control. If you need isolation with minimal restriction, that is a gate valve; if you need fast on‑off, a ball valve.
- 425 °C on most of this range — graphite packing and metal seating, well past the 150 °C of a PTFE‑seated ball valve. The figures, variant by variant.
- ⚠ Choose the end type first, then the flange standard. ANSI 150 and JIS 10K will not bolt to each other despite similar ratings. Check the pipework, not the pressure.
- Install it flow‑under‑the‑seat unless the manufacturer says otherwise — it makes the valve easier to open against pressure and keeps the packing out of the throttling stream. More on fitting.
Globe or gate?
The most common question on this page, and the answer is not price.
| Globe valve | Gate valve | |
|---|---|---|
| Job | Throttling and isolation | Isolation only |
| Run part‑open? | Yes — that is the point | Never — it destroys the seat |
| Flow path | Turns twice, past a seat | Straight through |
| Pressure drop, fully open | Significant | Almost none |
| Face‑to‑face at 2", cast steel | 203 mm | 178 mm |
| Interchangeable in the pipe? | ⚠ No — 25 mm longer at 2" | ⚠ No — a globe will not fit its gap |
| Stem travel | Short | Long — the gate must clear the bore |
| Frequent operation | Suits it | Better left alone between duties |
| Temperature, most variants | 425 °C | 425 °C |
| Highest pressure here | 800 PSI threaded / weld | 800 PSI threaded / weld |
- ⚠ The face‑to‑face difference is the practical trap. Replacing a gate valve with a globe valve of the same nominal size will not fit — at 2" you need 25 mm more in the run. Measure before ordering.
- If the valve will be adjusted, it must be a globe valve. Not a preference — a gate valve used for regulation will fail, and then it will not isolate either.
- If the valve is only ever fully open or fully shut, a gate valve is the better buy: cheaper, and almost no pressure drop.
- If you need speed, neither — a ball valve is a quarter turn against many turns for both of these. But a ball valve stops at 150 °C and cannot throttle.
- Both share the same materials, standards and test regime in this range, so once the job is settled the rest of the choice runs the same way. All ten globe variants.
All ten globe valves, side by side
End type first, then standard, then material.
| Variant | End | Size | Material | Pressure | Max temp | Choose it when |
|---|---|---|---|---|---|---|
| ANSI 150 cast iron | ANSI 150# flange | 2"–6" | Cast iron | 150# | 429 °C | Throttling water and low‑duty service on ANSI pipework, at the lowest cost here. |
| ANSI 150 cast steel | ANSI 150# flange | 2"–6" | Cast steel | Class 150 | 425–429 °C | Steam and hot oil regulation at larger sizes. Built to BS 1873, the steel globe valve standard. |
| ANSI 150 forged steel | ANSI 150# flange | 1"–1 1/2" | Forged A105 | 150# | −29 to 425 °C | Small‑bore flanged regulation. Forged, to API 602 / BS 5352. |
| ANSI 150 SS316 | ANSI 150# flange | 1"–4" | SS316 | 150 PSI | 425 °C | Corrosive duty on ANSI pipework. Two size bands, each with its own drawing and parts list. |
| JIS 10K cast iron | JIS 10K flange | 2"–6" | Cast iron | 10K | 230 °C | Japanese‑standard pipework. Built to the JIS F7307 marine standard — the only variant not tested to API 598. |
| JIS 10K SS316 | JIS 10K flange | 1"–4" | SS316 | 10K | −29 to 425 °C | Corrosive duty on JIS pipework. Genuine JIS flange dimensions, unlike its gate valve counterpart. |
| Threaded forged steel | NPT | 1/2"–2" | Forged A105 | 800 PSI | −29 to 425 °C | Small‑bore high‑pressure regulation. 800 PSI and 425 °C from a screwed valve. |
| Threaded SS316, 200 PSI | BSPT or NPT | 1/2"–2" | SS316 | 200 PSI | 150 °C | Light corrosive duty. The lightest stainless option, and the only one held to 150 °C. |
| Threaded SS316, 800 PSI | NPT | 1/2"–2" | SS316 | 800 PSI | 200 °C | Corrosive duty at pressure. Four times the 200 PSI version — but note the temperature. |
| Weld end forged steel | Socket weld | 1/2"–2" | Forged A105 | 800 PSI | −29 to 425 °C | Where a threaded joint is not acceptable — steam, high temperature, no leak path. |
- The JIS 10K cast iron is rated 230 °C and is built and tested to the JIS F7307 / F7400 marine standards, as the catalogue states — the other variants are tested to API 598. Treat 230 °C as the governing figure for that valve.
- Two ratings worth noting: the threaded SS316 800 PSI is rated 200 °C, and the ANSI 150 cast steel states 425 °C on the 2"–4" band and 429 on the 2½" band — design to 425 °C. Both as the catalogue prints them.
- The threaded and weld‑end valves are the high‑pressure ones. 800 PSI against 150 PSI flanged — a small forged body takes far more than a large cast one. The trade is size: forged stops at 2".
- ⚠ ANSI 150 and JIS 10K do not bolt together despite both sitting near 1.6–2 MPa. Match the bolt circle on the pipework.
- Thread forms differ between the two threaded stainless valves. The 200 PSI offers BSPT or NPT; the 800 PSI is NPT only. Note that is BSPT, the tapered form, not BSPP.
The standards each variant is built to
BS 1873 for cast steel, API 602 for forged — and one entirely JIS variant.
| Variant | Design and manufacture | Face‑to‑face | Ends | Inspection and test |
|---|---|---|---|---|
| ANSI 150 cast iron | ASME B16.10 | ASME B16.10 | ASME B16.5 | API 598 |
| ANSI 150 cast steel | ASME B16.4 & BS 1873 | ASME B16.10 | ASME B16.5 | API 598 |
| ANSI 150 forged steel | API 602 / BS 5352 | ASME B16.10 | ASME B16.5 | API 598 |
| ANSI 150 SS316 | API 602 / BS 5352 | ASME B16.10 | ASME B16.5 | API 598 |
| JIS 10K cast iron | JIS F7307 | JIS F7307 | JIS B2210 | JIS F7400 |
| JIS 10K SS316 | API 602 / BS 5352 | ASME B16.10 | JIS 10K | API 598 |
| Threaded forged steel | API 602 / BS 5352 | – | ASME NPT | API 598 |
| Threaded SS316, 200 PSI | ASME B16.34 | – | BSPT or NPT | API 598 |
| Threaded SS316, 800 PSI | API 602 | – | NPT | API 598 |
| Weld end forged steel | API 602 / BS 5352 | – | ASME socket weld | API 598 |
- BS 1873 is the steel globe valve standard, and it is the one to quote where a specification calls for a flanged steel globe valve. Only the ANSI 150 cast steel is built to it.
- API 602 with BS 5352 covers five of the ten — every forged steel and flanged SS316 variant, plus the threaded forged and weld end. If your specification names API 602, those are the candidates.
- ⚠ The JIS 10K cast iron sits outside the API framework entirely. Designed, dimensioned and tested to JIS F7307 and JIS F7400 — Japanese marine standards — with JIS B2210 flanges. Every other variant here is tested to API 598. If your specification requires API 598 testing, this variant does not meet it as published.
- The cast steel variant is designed to BS 1873, with ASME B16.4 co‑cited in the catalogue, as printed. Ask us if your specification needs a formal statement of the governing standard.
- Flange end standards differ between the two JIS variants. JIS B2210 on the cast iron against a plain JIS 10K citation on the SS316 — and note the gate valve range uses B2212 and B2220. All are JIS 10K drillings, specified against different documents.
The ten globe valves we stock
Each has its own page with the full bill of materials, every dimension and its test pressures.
Lowest cost · throttlingANSI 150 cast iron
EndANSI 150# flangeSize2"–6"MaterialCast ironMax temp429 °C Ready stock→
BS 1873 · steam dutyANSI 150 cast steel
EndANSI 150# flangeSize2"–6"MaterialCast steelDesignBS 1873 Ready stock→
Forged · small bore flangedANSI 150 forged steel
EndANSI 150# flangeSize1"–1 1/2"MaterialForged A105Max temp425 °C Ready stock→
Corrosion · two size bandsANSI 150 SS316
EndANSI 150# flangeSize1"–4"MaterialSS316Max temp425 °C Ready stock→
JIS F7307 marine standardJIS 10K cast iron
EndJIS 10K flangeSize2"–6"MaterialCast ironMax temp230 °C Ready stock→
JIS flange · SS316JIS 10K SS316
EndJIS 10K flangeSize1"–4"MaterialSS316Max temp425 °C Ready stock→
800 PSI · NPTThreaded forged steel
EndNPTSize1/2"–2"MaterialForged A105Pressure800 PSI Ready stock→
Light duty · 150 °CThreaded SS316, 200 PSI
EndBSPT or NPTSize1/2"–2"MaterialSS316Pressure200 PSI Ready stock→
800 PSI · NPT onlyThreaded SS316, 800 PSI
EndNPTSize1/2"–2"MaterialSS316Pressure800 PSI Ready stock→
Socket weld · 800 PSIWeld end forged steel
EndSocket weldSize1/2"–2"MaterialForged A105Pressure800 PSI Ready stock→Cast iron, cast steel, forged steel or SS316
Same four grades as the gate valve range, and the same logic.
| Material | Where it belongs | Watch for |
|---|---|---|
| Cast iron | Throttling water and low‑duty service on ANSI 150 or JIS 10K pipework. The cheapest bodies here. | Brittle — no impact, bending load or thermal shock. And the JIS variant is limited to 230 °C where the ANSI one states 429. |
| Cast steel | Steam and hot oil regulation at 2" and above, built to BS 1873. The standard choice for a flanged steel globe valve. | Carbon steel — no corrosion resistance. Its two size bands also publish different temperature figures. |
| Forged steel | Small bore. 150 PSI flanged, or 800 PSI threaded and socket weld — over five times the flanged rating. | Plain carbon steel, no corrosion resistance. Stops at 2" on the threaded and weld ends. |
| SS316 | Corrosive fluids and wet or coastal environments. Flanged on ANSI and JIS, threaded at 200 or 800 PSI. | The 200 PSI threaded version is limited to 150 °C, and the 800 PSI one publishes 200 °C — neither reaches the 425 of the steel variants. |
- Forged beats cast on pressure; cast beats forged on size. Exactly as in the gate valve range — 800 PSI to 2" forged, against 150 PSI to 6" cast. That one trade explains most of this range.
- ⚠ On a globe valve the material also decides the throttling life. Throttling wears the seat and disc, and it does so faster the harder the service. On abrasive or flashing duty, specify the harder, heavier body — cast or forged steel over cast iron.
- ⚠ The stainless variants do not reach 425 °C here. Both threaded SS316 valves publish lower ceilings (150 and 200 °C) than the carbon‑steel ones. If you need both corrosion resistance and high temperature, the flanged ANSI 150 SS316 or JIS 10K SS316 state 425 °C.
- Neither carbon‑steel grade resists corrosion. If stainless was specified because of the fluid or the environment, A105 and cast steel are not substitutes whatever their pressure rating.
- All ten seal on metal with graphite packing, not PTFE — which is why the steel variants reach 425 °C where a PTFE‑seated ball valve stops at 150.
Temperature and test pressures, all ten
Every figure as the catalogue prints it.
Globe valves here seal metal to metal and pack the stem with graphite, so the body material sets the ceiling rather than a polymer seat. That takes most of the range to 425 °C, far past the 150 °C of a PTFE‑seated ball valve. The catalogue is the reference for all ten; where its figures differ between size bands we quote each as printed, and confirm the governing one on enquiry.
| Variant | Nominal | Shell / body test | Seal test | Gas tightness | Max temperature |
|---|---|---|---|---|---|
| ANSI 150 cast iron | 150# | 2.06 MPa | 1.57 MPa | 0.6 MPa | 429 °C |
| ANSI 150 cast steel | 150# | 3.0 MPa | 2.2 MPa | 0.6 MPa | 425 / 429 °C |
| ANSI 150 forged steel | 150 PSI | 3.0 MPa | 2.2 MPa | 0.6 MPa | −29 to 425 °C |
| ANSI 150 SS316 | 150 PSI | 3.0 MPa | 2.2 MPa | 0.6 MPa | −20 to 425 °C |
| JIS 10K cast iron | 10K | 2.06 MPa | 3.0 / 1.57 MPa | 0.6 MPa | 230 °C |
| JIS 10K SS316 | 10K | 3.0 MPa | 2.2 MPa | 0.6 MPa | −29 to 425 °C |
| Threaded forged steel | 800# | 21.0 MPa | 15.4 MPa | 0.6 MPa | −29 to 425 °C |
| Threaded SS316, 200 PSI | 200 PSI | 2.1 MPa | 1.6 MPa | 0.6 MPa | −29 to 150 °C |
| Threaded SS316, 800 PSI | 800 PSI | 21.5 MPa | 15.5 MPa | 0.6 MPa | 200 °C |
| Weld end forged steel | 800 PSI | 19.5 MPa | 14.3 MPa | 0.6 MPa | −29 to 425 °C |
- The JIS 10K cast iron test table prints seal figures of 3.0 MPa on one size band and 1.57 MPa on the other, against a 2.06 MPa body test — quoted as the catalogue prints them. These are factory proof tests, not working pressures; we confirm the applicable figure on enquiry.
- The JIS 10K cast iron is rated 230 °C, as published for its JIS F7307 marine-standard build. Take 230 °C as governing for that valve.
- The cast steel variant states 425 °C on the 2"–4" band and 429 °C on the 2½" band, as the catalogue prints them. Design to 425 °C, the standard figure for A216 WCB.
- The ANSI SS316 is rated to −20 °C, as published. It matters only on genuinely cold duty — ask us to confirm if you are near it.
- The threaded SS316 800 PSI is rated 200 °C, as published. For higher temperature in a threaded body, use the forged steel valve at 425 °C.
- Gas tightness is 0.6 MPa on all ten — the one figure that does not move with class, size or material.
- ⚠ These are proof tests, not working pressures. The shell test proves the body, the seal test proves the disc against its seat. Do not design to them.
- The weld end is tested slightly lower than the threaded forged valve — 19.5 / 14.3 MPa against 21.0 / 15.4 — at the same 800 PSI rating. Both are well above the working pressure.
Globe valves — the specification
The range as a whole. Per‑variant figures are on the ten pages.
| Size range | 1/2" to 6" (DN15 to DN150) — threaded and weld end stop at 2", flanged runs 1" to 6" |
| End types | ANSI 150# flange · JIS 10K flange · NPT · BSPT · socket weld |
| Body materials | Cast iron · cast steel · forged steel A105 · SS316 |
| Working pressure | 150 PSI / 150# / 10K flanged · 200 or 800 PSI threaded · 800 PSI weld end |
| Working temperature | To 425 °C on the steel variants — every figure by variant |
| Design standards | BS 1873 (cast steel) · API 602 / BS 5352 (forged and SS316) · ASME B16.34 · JIS F7307 — by variant |
| Inspection and test | API 598 on nine of ten · JIS F7400 on the JIS cast iron |
| Stem | Rising stem, handwheel operated. Shorter travel than a gate valve |
| Packing | Graphite — which is what allows 425 °C on the steel bodies |
| Duty | Throttling and isolation. Designed to run part‑open — unlike a gate valve |
| Flow direction | Normally flow under the seat — see fitting |
| Pressure drop | Significant even fully open, because the flow path turns twice. The cost of control |
| Not on this page | Gate valves for straight‑through isolation · ball valves for quarter‑turn · butterfly valves for large bore |
| Stock | Held in Malaysia or Singapore |
Fitting and operating a globe valve
Flow direction matters on this one, and length catches people out.
Installing
- ⚠ Check the face‑to‑face length first. A globe valve is longer than a gate valve of the same size — 203 mm against 178 at 2" in cast steel. If you are replacing a gate valve, the gap will be too short.
- Fit it flow‑under‑the‑seat unless the maker specifies otherwise. Line pressure then helps lift the disc, the valve opens more easily against pressure, and the packing sits out of the throttling stream. Most bodies are marked with an arrow.
- Stem vertical, handwheel up where you can. A horizontal stem loads the packing unevenly and lets debris settle in the seat.
- Check the end type and standard match — flange drilling, thread form or socket size. ANSI 150 and JIS 10K do not interchange.
- Support the weight, and remember cast iron is brittle — it must not carry pipe load.
Operating and throttling
- Part‑open is normal. This is what a globe valve is for — set the flow and leave it. No damage, unlike a gate valve.
- ⚠ Avoid throttling hard against a nearly‑closed disc. Very small openings concentrate velocity on the seat face and will erode it over time, especially on abrasive or flashing service. If you are always near shut, the valve is oversized.
- Do not force it closed. The disc seats squarely; hand tight against the stop is enough. Forcing it with a bar galls the seat.
- Shorter travel than a gate valve — fewer turns from shut to open, because the disc only has to clear the seat, not the whole bore.
- Exercise it periodically if it sits in one position for long periods, so the stem and packing stay free.
Why buy globe valves from us
Ten variants, and a catalogue with some real inconsistencies in it.
We check it is the right valve type
If you only ever need fully open or fully shut, a gate valve is cheaper and flows better. We will say so rather than sell you a globe valve you do not need.
We flag the length difference
A globe valve is longer face‑to‑face than a gate valve at the same size. Replacing one with the other will not fit, and it is the single most common surprise on this product.
We check the temperature per variant
This range is not consistent: 230 °C on the JIS cast iron, 200 on the threaded SS316 800 PSI, 425 and 429 on two bands of one valve. We quote the figure for the exact variant.
We publish the catalogue errors
A seal test above its own body test. A gate‑valve part prefix on a globe valve. A standard citation that does not govern the product. We set these out on the pages and confirm with the factory rather than pass them on.
Full bills of materials, published
Every variant page lists every part and its material with the manufacturer’s own item numbers — body, disc, seat, stem, packing, bonnet, bolting. No email gate.
Stock in Malaysia and Singapore
Held both sides at a landed price — transport, currency, duties and taxes already inside the figure. Send a size, a standard, or a photo of the flange.
Questions we get asked
The ones that come up on the phone.
What is a globe valve used for?
Regulating flow — and shutting it off. Flow comes up through a seat opening, past a disc that lifts squarely off that seat, and turns down again to leave. Because the stem moves the disc towards or away from the seat, the gap changes smoothly with stem position, so flow can be set and held anywhere between shut and fully open. That is the job a gate valve cannot do.
Globe valve or gate valve?
Will the valve ever be adjusted? If yes, it must be a globe valve — a gate valve held part‑open erodes its own seat permanently and then will not isolate either. If the valve is only ever fully open or fully shut, a gate valve is cheaper and has almost no pressure drop where a globe valve restricts the line even wide open. Side by side.
Can I replace a gate valve with a globe valve?
Not without changing the pipework. A globe valve is physically longer face‑to‑face at the same nominal size — at 2" in cast steel it is 203 mm against 178 mm for the gate valve, so you need 25 mm more in the run. Measure the gap before ordering. The flange drilling is the same; the length is not.
Which way round does it go?
Normally flow under the seat — entering beneath the disc. Line pressure then helps lift the disc, so the valve opens more easily against pressure, and the packing sits out of the throttling stream. Most bodies carry a flow arrow; follow it. Fit the stem vertical, handwheel up where you can. The full sequence.
Does a globe valve restrict flow when fully open?
Yes, and noticeably. The flow path turns twice — up through the seat and down again — so there is a real pressure drop even wide open. That is the price of being able to throttle. A gate valve fully open presents a clear straight bore and almost no drop, which is exactly why the two are not interchangeable in function.
What temperature can a globe valve run at?
425 °C on the steel variants — cast steel, forged steel and both flanged SS316 — because they seal metal to metal with graphite packing rather than a PTFE seat. But this range is not consistent: the JIS 10K cast iron states 230 °C, the threaded SS316 800 PSI states 200 °C, and the cast steel states 425 on one band and 429 on the other, each as printed. Every figure.
Which end type should I order?
Flanged for larger sizes and anything you expect to remove — ANSI 150 or JIS 10K, 1" to 6". Threaded for small bore, 1/2" to 2", and where the 800 PSI ratings live. Socket weld where a threaded joint is not acceptable. Note the threaded stainless valves use BSPT (tapered), not BSPP. All ten.
Will an ANSI 150 globe valve bolt to a JIS 10K flange?
No. Both sit near 1.6 to 2 MPa, which is what makes this an expensive mistake, but the bolt circles differ. Count the bolt holes and measure the bolt circle on the mating flange, or send us a photo.
Why are the threaded valves rated higher than the flanged ones?
Because they are forged rather than cast, and small. The threaded and weld‑end A105 valves reach 800 PSI and are tested to 21 MPa; the flanged cast bodies are 150 PSI tested to about 3 MPa. Forging gives a denser, stronger body, and a small body contains pressure far more easily. The trade is size: forged stops at 2".
What is BS 1873, and which valve is built to it?
BS 1873 is the British Standard for steel globe valves — flanged and butt‑welding, for the petroleum and allied industries. Here it applies to the ANSI 150 cast steel variant, which is the one to quote where a specification calls for a flanged steel globe valve to BS 1873. The forged and stainless variants are built to API 602 / BS 5352 instead. The full stack.
Why do some of your figures say they need confirming?
Because the manufacturer’s catalogue is the reference for every figure we publish, and where it states different values for different size bands of one valve — a temperature, a test pressure, a part prefix — we quote each exactly as printed rather than merge them. On enquiry we confirm the governing figure with the factory for the exact size and variant you are buying, so what arrives matches what you designed around.
What sizes do you hold in stock?
1/2" to 6" (DN15 to DN150), held in Malaysia or Singapore. Threaded and weld end cover 1/2" to 2"; flanged covers 1" to 6" depending on material. Send the size, end type and the temperature and we will confirm availability and a landed price.
Catalogues
One PDF per variant — direct download, no form, no email address.
ANSI 150 cast iron globe valvesAF Hydro · PDFPDF
ANSI 150 cast steel flange end globe valvesAF Hydro · PDFPDF
ANSI 150 A105 forged steel globe valvesAF Hydro · PDFPDF
ANSI 150 SS316 globe valvesAF Hydro · PDFPDF
JIS 10K cast iron flange end globe valvesAF Hydro · PDFPDF
JIS 10K SS316 globe valvesAF Hydro · PDFPDF
Threaded A105 globe valves — 800 PSIAF Hydro · PDFPDF
Threaded SS316 globe valves — 200 PSIAF Hydro · PDFPDF
Threaded SS316 globe valves — 800 PSIAF Hydro · PDFPDF
Socket weld A105 globe valves — 800 PSIAF Hydro · PDFPDF
Tell us what you need to control, and the temperature
We will confirm a globe valve is the right type, check the face‑to‑face against your run, quote the temperature for the exact variant rather than the range, and give you a landed price. Stock in Malaysia and Singapore.