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HomeLow pressure valvesGlobe valvesANSI 150 Cast Iron Globe Valve
ANSI 150 Cast Iron Globe Valve
ANSI 150 Cast Iron Globe Valve — 2
ANSI 150 Cast Iron Globe Valve — 3
The cheapest body in the range, for throttling water and low-duty service. ⚠ Its catalogue PDF is not on our server - ask us if you need the factory sheet.

Why this variant

  • The cheapest body in the range, for throttling water and low-duty service.
  • 2″–6″ (DN50–DN150) — check the size band before ordering.
  • 150# at ≤ 205 °C, as published.
  • Cast iron — body, and what it will and will not stand.
  • Built to ASME B16.10, inspected and tested to API 598.
  • Stocked in Singapore & Malaysia — out within 24 hours.

ANSI 150 Cast Iron Globe Valve

ANSI 150# flange · 2″–6″ · ≤ 205 °C
In stock150#ASME B16.10API 598

A rising-stem globe valve for throttling and isolation, with ANSI 150# flange ends, 2″–6″ (DN50–DN150), in Cast iron. Rated 150#, built to ASME B16.10. Graphite packed — built to run part-open, unlike a gate valve.

Tell us the size, the fluid, pressure and temperature — quotes within 2 working hours.

EndsANSI 150# flange
Size2″–6″ (DN50–DN150)
BodyCast iron
Pressure150#
Max temperature≤ 205 °C
DesignASME B16.10
InspectionAPI 598
StemNon-rising stem, handwheel, multi-turn
PackingGraphite
⚠ 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, 203 mm against 178 mm. It will not fit the gap a gate valve came out of. Measure the run before ordering. Globe or gate?

Construction

The ANSI 150 Cast Iron Globe Valve

Throttling duty, ANSI 150# flange ends, built to ASME B16.10.

A rising-stem globe valve in 2″–6″ (DN50–DN150), body in Cast iron, rated 150#. In a globe valve the flow turns: up through a seat opening, past a disc that lifts squarely off that seat, and down again to leave. That geometry is what lets it be set and held anywhere between shut and fully open.

The cheapest body in the range, for throttling water and low-duty service. ⚠ Its catalogue PDF is not on our server - ask us if you need the factory sheet.

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.

⚠ Longer than a gate valve of the same size

At 2″ in cast steel a globe is 203 mm face-to-face against 178 mm for the gate. It will not fit the gap a gate valve came out of — measure the run.

Graphite packing is what allows the heat

Metal seating and a graphite-packed stem, rather than a PTFE seat. That is why globe valves regulate steam and hot oil where a ball valve stops at 150 °C.

Rated ≤ 205 °C

As published. We print the catalogue figure rather than inferring one from a sibling variant.

Install it flow-under-the-seat

Flow entering beneath the disc, unless the manufacturer says otherwise — it makes the valve easier to open against pressure and keeps the packing out of the throttling stream.

End connection: ANSI 150# flange

The end type is the first decision and cannot be changed later. Check it against the pipework, not the pressure rating — all ten variants compared.


Photographs

Three angles on the same valve

All photographs of the stocked item, not renders.

1. The valve as stocked

A rising-stem globe valve with the handwheel fitted. The stem travels as the valve opens, though not as far as a gate valve’s — the disc does not have to clear the bore.

2. The body and the ends

Note the shape: the flow turns twice inside it. That is what makes it controllable, and also why it is longer face-to-face than a gate valve of the same size.

3. Bonnet and gland

Where the graphite packing sits. Installed flow-under-the-seat, the packing stays out of the throttling stream.


Specification

Full specification

Everything that goes on a purchase order.

ItemDetail
Size range2″ to 6″ (DN50 to DN150)
End connectionANSI 150# flange
Working pressure150#
Maximum working temperature≤ 205 °C
Body materialCast iron ASTM A126 B
TrimA276 SUS410 stem and stem nut, A126 B seat and disc
Design and manufactureASME B16.10
End dimensionsASME B16.5
Inspection and testAPI 598
Shell or body test2.06 MPa
Seal test1.57 MPa
Gas tightness test0.6 MPa
StemRising stem, handwheel operated
PackingGraphite
DutyThrottling and isolation — designed to run part open
Flow directionNormally flow under the seat — check the body arrow
StockSingapore & Malaysia warehouses — out within 24 hours

Dimensions

Sizes and dimensions — as printed

Millimetres. Face-to-face L is the gap the valve needs in the run; on a rising-stem globe valve you also need headroom above it, because the stem travels up as it opens.

SizePart noBore dFace-to-face LFlange OD OBolt circle WRBolts n-zFlange thk tRF height fWeight (kg)
2″VL-CI-GL-F-150-3250200152120.792.14-Ø1915.9211.45
2 1/2″VL-CI-GL-F-150-4065216178139.5104.84-Ø1917.5218.80
3″VL-CI-GL-F-150-4880240190152.51274-Ø1919.1224.70
4″VL-CI-GL-F-150-64100292229190.5157.28-Ø1923.9237.25
SizePart noBore dFace-to-face LFlange OD OBolt circle WBolts n-zFlange thk tRF height fWeight (kg)
5″VL-CI-GL-F-150-801253302542168-Ø2223.9249.50
6″VL-CI-GL-F-150-96150355241.5241.58-Ø2225.4266.75

⚠ Measure the length, and leave headroom

A globe valve is longer face-to-face than a gate valve of the same size — 203 mm against 178 mm at 2″ in cast steel. It will not fit the gap a gate valve came out of.

Face-to-face L is what decides whether it fits

Measure the gap in the run against it. On a replacement, measure the valve coming out rather than trusting a drawing.

Two size bands, two tables

DN50–DN100 and DN125–DN150 are published separately, and the larger band drops the R column. Both are above, as printed.

Weights are published for every size

11.45 kg at 2″ to 66.75 kg at 6″. A valve must not hang on the pipework, and cast iron is brittle — support it properly.

⚠ The catalogue disagrees with itself on the range

The features page says 2″–4″ (DN50–DN100); the dimension list runs to 6″ across two bands and gives part numbers for all six. We publish all six, as printed, and flag the mismatch rather than pick one.


Drawing

Sectional drawing — callouts 1 to 19

Sectional drawing of the ANSI 150 cast iron globe valve, callouts 1 to 19

Nineteen callouts, nineteen items in the parts list below. The arrow shows the flow turning up through the seat and down again to leave — the geometry that makes a globe valve controllable, and the reason it drops more pressure than a gate valve. Dimension letters match the size table: d bore, L face-to-face, O flange OD, W bolt circle, t flange thickness, f raised face, n–Øz the bolt pattern.

Read the drawing with the tables

The callout numbers are the item numbers in the parts list below, and the dimension letters are the column headings in the size table above. Nothing on the drawing is named only there.

The arrow is the whole point

It shows the flow turning up through the seat and down again. That path is what makes the valve controllable, and it is also why a globe valve drops pressure even wide open where a gate valve does not.

Use it for spares, not for fabrication

It is a catalogue section, not a manufacturing drawing: it carries no tolerances and no material callouts. Order spares by item number against the parts list.


Materials

Bill of materials

The manufacturer’s item numbers, so a spares order matches the parts list.

NoPart nameMaterial
1BodyA126 B Cast Iron
2SeatA126 B Cast Iron
3DiscA126 B Cast Iron
4CoverA29 1025
5StemA276 SUS410
6GasketSS304 + Graphite
7BoltsA29 1035
8NutsA29 1025
9BonnetA126 B Cast Iron
10Stem NutA276 SUS410
11HandwheelA47 32510 Malleable Iron
12NutA29 1025
13ScrewSS304
14NutA29 1025
15BoltA29 1035
16Gland FlangeA126 B Cast Iron
17Packing GlandA276 SUS410
18PinA29 1025
19PackingFlexible Graphite
NoPart nameMaterial
1BodyASTM A126 B
2SeatASTM A126 B + SS304
3DiscASTM A126 B + SS304
4CoverASTM A29 1025
5StemASTM A276 SUS410
6GasketSS304 + Graphite
7BoltsASTM A29 1035
8NutsASTM A29 1025
9BonnetASTM A126 B
10Stem NutASTM A276 410
11HandwheelASTM A47 32510
12NutASTM A29 1025
13ScrewSS304
14NutASTM A29 1025
15BoltASTM A29 1035
16Gland FlangeASTM A126 B
17Packing GlandASTM A276 410
18PinASTM A29 1025
19PackingFlexible Graphite

The item numbers are the manufacturer’s

They match the callouts on the sectional drawing, so a spares order matches the section rather than a description.

The seat and the disc faces are what wear

Everything else is a casting or a fastener. On an isolation valve those two surfaces take the duty every time it is closed.

Graphite packing is the reason for the temperature

It is also the part that beds in. A small re-tighten of the gland after the first heat cycle is normal.

The stem is worth asking about

A bent or scored stem is the usual reason a globe valve will not seat, and it is the part that moves furthest every cycle.

Published in full, not on request

If you need to know what touches your fluid, the whole list is above — we have not summarised it.


Test pressures

Test pressure and temperature

Factory proof tests. Not working pressures — the shell test proves the body, the seal test proves the gate against its seat. Do not design to them.

ItemValue
Normal Pressure150#
Hydraulic Body Test Pressure2.06 MPa
Seal Test Pressure1.57 MPa
Hermetical Sealing Test0.6 MPa
ItemValue
Normal Pressure150#
Hydraulic Body Test Pressure2.06 MPa
Seal Test Pressure1.57 MPa
Hermetical Sealing Test0.6 MPa
Max working temperature≤ 205 °C

⚠ Do not design to these figures

The shell test proves the body and the seal test proves the gate against its seat. They are proof tests well above the working rating, and the valve is not intended to operate there.

The working rating is 150#

That is the number to design to, at ≤ 205 °C.

API 598 is what makes these comparable

Every variant in this range is inspected and tested to it, so the figures on the other nine pages can be read against these directly.

The disc and the seat are what wear

Running part-open is normal service for a globe valve, not abuse — but the disc and seat still take the whole duty. On a valve that is adjusted often, those two faces are what to ask about.

Ask if you need the certificate

EN 10204 3.1 is available on request and the castings carry heat numbers — ask with the order, not after the goods arrive.


Selecting

Not sure this is the right one?

End type first, then the standard, then the material.

Choose this one when…

  • The valve will be adjusted, not just opened and shut.
  • Your pipework takes ANSI 150# flange ends — checked, not assumed.
  • Your size falls in 2″–6″ (DN50–DN150).
  • Working pressure is within 150# and temperature within ≤ 205 °C.
  • The duty suits Cast iron, and you have the extra face-to-face length.

Choose something else when…

  • The valve is only ever fully open or fully shutgate valves: cheaper, and almost no pressure drop.
  • You want quarter-turn on-off → ball valves, though they stop at 150 °C.
  • The end type or flange standard is differentthe other nine variants.
  • The run cannot take the extra length → measure first; a globe is 25 mm longer at 2″.
  • You need to stop reverse flowcheck valves.

All ten side by side: the comparison table.


Catalogues

Official catalogue — direct download

AF Hydro ANSI 150 cast iron globe valves catalogue

AF Hydro — ANSI 150 Cast Iron Globe

ANSI 150# · 2″–6″ · A126 B
PDFDownload →

FAQ

Frequently asked questions

What is the ANSI 150 Cast Iron Globe Valve for?

Throttling and isolation. A rising-stem globe valve with ANSI 150# flange ends in 2″–6″ (DN50–DN150), body in Cast iron, rated 150#, built to ASME B16.10. The flow turns past a seat, and the disc lifts squarely off that seat, so flow can be set and held anywhere between shut and fully open.

Can it be run part-open?

Yes — that is the point. Running a globe valve 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.

Will it fit where a gate valve came out?

No. A globe valve is longer face-to-face at the same size — at 2″ in cast steel, 203 mm against 178 mm. You need about 25 mm more in the run. Measure before ordering.

What is the working temperature?

Rated ≤ 205 °C, as published. The packing is graphite and the seating is metal, which is what allows the heat — a PTFE-seated ball valve stops at 150 °C.

How should it be installed?

Flow-under-the-seat unless the manufacturer says otherwise — flow entering beneath the disc. It makes the valve easier to open against pressure and keeps the packing out of the throttling stream.

What about stock for Indonesia?

We hold it in our Singapore and Malaysia warehouses, out of the warehouse within 24 hours of PO. Quotes within 2 working hours.

What sizes are available?

2″–6″ (DN50–DN150). Part numbers, the bill of materials and the test pressures are all on this page, as printed in the catalogue.

Which standards does it meet?

Designed and manufactured to ASME B16.10. Note that nine of the ten variants are tested to API 598, but the JIS 10K cast iron is built to the JIS F7307 / F7400 marine standards instead, so its figures are not directly comparable with the rest of the range.

Can it be actuated?

It is handwheel operated and multi-turn, not quarter turn. Operating torque, turn count and any ISO 5211 pad are not published for this range — settle the actuation arrangement with us rather than assuming a top plate.

What is not published for this valve?

No flow characteristic curve and no Cv — which bites hardest here, because this is the throttling valve and the relationship between stem position and flow cannot be read off the sheet. Also no disc type, no operating torque, no ISO 5211 pad and no fire-safe certificate. EN 10204 3.1 is available on request; the castings carry heat numbers.

Related: all globe valves · globe valves · ball valves · all low pressure valves

Other variants
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