Figure 100 Hammer Union — Threaded, 1,000 psi

Figure 100 hammer union, standard service, line pipe threaded ends. 2" to 8", rated 1,000 psi (69 bar). Full size table with weights and dimensions on this page.
Key features
- Figure Number: 100
- Union Type: Union
- End Connection: Threaded (line pipe)
- Service Class: Standard service
- Working Pressure: 1000 psi
- Nominal Size Range: 2" to 8"
- Figure Number
- 100
- Union Type
- Union
- End Connection
- Threaded (line pipe)
- Service Class
- Standard service
- Working Pressure
- 1000 psi
- Nominal Size Range
- 2" to 8"
Product description
The Figure 100 is a low-pressure general purpose threaded union for air, water, oil or gas service.
Applications
General purpose low-pressure line connections and manifolds.
Construction and sealing
- Made from steel rather than cast iron, which cuts weight and outside dimensions without giving up interchangeability with other leading brands.
- Threaded ends, 2 in through 8 in.
- Material: Steel, not cast iron.
Figure 100 takes its name from its ability to withstand 1,000 psi cold working pressure. Interchangeable with other leading brands of Figure 100 union.
Working pressure
1,000 psi (69 bar) cold working pressure, tested at 1,500 psi.
How a hammer union makes up
A hammer union is a three-piece connection. A male sub and a female sub carry the two line ends, and a wing nut turns on a thread cut into the male sub and pulls a shoulder on the female sub down onto the seat. The lugs standing proud of the nut are struck with a hammer to tighten it, which is where the name comes from — the joint is made up and broken out with a sledgehammer rather than a wrench, so a line can be rigged and stripped quickly in the field. The seal is made by the seat, not by the thread: the nut only supplies the load that holds the two seating faces together. That is why a union will leak from a scored seat or a perished seal long before the thread is at fault, and why a worn union is usually a sub or a seal replacement rather than a scrap part.
Specifying one
Four things fix a hammer union: the figure number, which sets the pressure class and decides what it will mate with; the service class, standard or sour gas; the end connection, threaded or butt weld; and the nominal size. Figure numbers are an industry series, so a union of the same figure and size from another maker will mate — but the pressure rating stamped on the union is what governs, not the figure number on its own. Send us the line specification and we will confirm the match before quoting.
Sizes and part numbers
Published in 2" to 8" with line pipe threaded ends. Every orderable size, its weight, its dimensions and its working pressure are in the size table on this page. Where dimensions and weight are critical, ask us to confirm them against the build before you order.
Identification
| Parameter | Value |
|---|---|
| Figure Number | 100 |
| Union Type | Union |
| End Connection | Threaded (line pipe) |
Performance
| Parameter | Value |
|---|---|
| Service Class | Standard service |
| Working Pressure | 1000 psi |
| Working Pressure | 69 bar |
| Test Pressure | 1500 psi |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size Range | 2" to 8" |
Construction
| Parameter | Value |
|---|---|
| Body Material | Steel, not cast iron |
Shipping & lead time
Sizes & part numbers
7 sizes| Indus part no. | Nominal size | End connection | A (mm) | B (mm) | C (mm) | Weight (g) | Working pressure (bar) |
|---|---|---|---|---|---|---|---|
| IH-HU-100-THD-STD-0200 | 2" | 2" LP thread | 73.1 | 82 | 69.8 | 2200 | 69 |
| IH-HU-100-THD-STD-0250 | 2-1/2" | 2-1/2" LP thread | 88.9 | 107.9 | 85.8 | 4500 | 69 |
| IH-HU-100-THD-STD-0300 | 3" | 3" LP thread | 103.1 | 103.1 | 104.6 | 7500 | 69 |
| IH-HU-100-THD-STD-0400 | 4" | 4" LP thread | 115.8 | 122.6 | 130 | 10400 | 69 |
| IH-HU-100-THD-STD-0500 | 5" | 5" LP thread | 146 | 152.4 | 162 | 14700 | 69 |
| IH-HU-100-THD-STD-0600 | 6" | 6" LP thread | 165.1 | 173.7 | 184.4 | 21500 | 69 |
| IH-HU-100-THD-STD-0800 | 8" | 8" LP thread | 184.1 | 182.6 | 242.8 | 29900 | 69 |
A — Dimension A on the manufacturer dimension drawing. B — Dimension B on the manufacturer dimension drawing. C — Dimension C on the manufacturer dimension drawing. Ask us for the dimension drawing if you need it stamped.
Working pressure is the manufacturer’s published rating for the fitting itself. An assembly is limited by its lowest-rated component, so check it against the hose, the tube and the port you are mating to.
What is the working pressure of a Figure 100 hammer union?▾
What sizes does the Figure 100 come in?▾
Is there a sour gas version of the Figure 100?▾
Will a Figure 100 mate with another maker’s Figure 100?▾
What is included in a hammer union?▾
Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations
The same part, in the designations used across European and Gulf trade catalogues.
- de
- Hammerverschraubung Verschraubung
- fr
- union à marteau union
- es
- unión de martillo unión
- it
- giunto a martello giunto
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