Steel ORFS Male × NPTF Male Branch Tee
Steel ORFS Male × NPTF Male Branch Tee, forged carbon steel, trivalent zinc plated. 8 part numbers, 1/4" to 1-1/4"; the size table gives the size on each end and dimensions in millimetres for every Indus part number.
Key features
- Body Configuration: branch tee
- Port A Thread: O-ring face seal (ORFS), 1/4" to 1-1/4" (9/16-18 to 1-11/16-12)
- Port A Sealing: flat face sealed by an O-ring in a groove on the male face
- Nominal Size Range: 1/4" to 1-1/4"
- Max Working Pressure: ORFS connection designed for 6,000 psi (manufacturer); no per-size table
- Body Configuration
- branch tee
- Port A Thread
- O-ring face seal (ORFS), 1/4" to 1-1/4" (9/16-18 to 1-11/16-12)
- Port A Sealing
- flat face sealed by an O-ring in a groove on the male face
Product description
The Steel ORFS Male × NPTF Male Branch Tee is a branch tee, in forged carbon steel, trivalent zinc plated. Its ends are O-ring face seal (ORFS) male, O-ring face seal (ORFS) male and NPTF (Dryseal) male. O-ring face seal joints are used where a hydraulic line must stay leak-free under high pressure and vibration.
Construction
- Body: branch tee
- End 1: O-ring face seal (ORFS) male
- End 2: O-ring face seal (ORFS) male
- End 3: NPTF (Dryseal) male
- Material: forged carbon steel, trivalent zinc plated
- O-ring: NBR (Buna-N)
Ends and sealing
- O-ring face seal (ORFS): flat face sealed by an O-ring in a groove on the male face; SAE J1453 / ISO 8434-3.
- NPTF (Dryseal): Dryseal taper pipe thread, cut so the crests and roots close up as the joint is tightened, so it seals on the thread; ASME B1.20.3.
Sizes
8 part numbers, 1/4" to 1-1/4". The Sizes & Part Numbers tab lists the size on each end and dimensions in millimetres for every one.
- End 1: O-ring face seal (ORFS), 1/4" to 1-1/4" (9/16-18 to 1-11/16-12)
- End 2: O-ring face seal (ORFS), 1/4" to 1-1/4" (9/16-18 to 1-11/16-12)
- End 3: NPTF (Dryseal), 1/4" to 1-1/4" (1/4-18 to 1-1/4-11.5)
Pressure rating
The manufacturer describes the ORFS connection as designed for leak-free use to 6,000 psi, and publishes no per-size table for this family. Tell us the working pressure and we will confirm the rating for your size before you order.
Stainless-steel version
The same configuration in 316 stainless steel: Stainless Steel ORFS Male × NPT Male Branch Tee.
How to order
Quote the Indus part number from the size table. If you only have the fitting, send the thread or tube size on each end, and Indus engineering will confirm the part number. Price and lead time are confirmed with the quotation.
Identification
| Parameter | Value |
|---|---|
| Body Configuration | branch tee |
Port A
| Parameter | Value |
|---|---|
| Port A Thread | O-ring face seal (ORFS), 1/4" to 1-1/4" (9/16-18 to 1-11/16-12) |
| Port A Sealing | flat face sealed by an O-ring in a groove on the male face |
| Port A Gender | male |
Port B
| Parameter | Value |
|---|---|
| Port B Thread | O-ring face seal (ORFS), 1/4" to 1-1/4" (9/16-18 to 1-11/16-12) |
| Port B Sealing | flat face sealed by an O-ring in a groove on the male face |
| Port B Gender | male |
Port C
| Parameter | Value |
|---|---|
| Additional Ports | NPTF (Dryseal) male |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size Range | 1/4" to 1-1/4" |
Performance
| Parameter | Value |
|---|---|
| Max Working Pressure | ORFS connection designed for 6,000 psi (manufacturer); no per-size table |
Construction
| Parameter | Value |
|---|---|
| Material | forged carbon steel, trivalent zinc plated |
Compliance
| Parameter | Value |
|---|---|
| Applicable Standards | SAE J1453, ISO 8434-3, ASME B1.20.3 |
Shipping & lead time
Sizes & part numbers
8 sizes| Indus part no. | End 1 | End 2 | End 3 | Y (mm) | D1 (mm) | D2 (mm) | D3 (mm) | M1 (mm) | M2 (mm) | M3 (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| IH-ST-FS2601-04-04-04 | 1/4" ORFS (9/16-18) | 1/4" ORFS (9/16-18) | 1/4" NPTF (1/4-18) | 14.3 | 4.5 | 4.5 | 7.1 | 21.5 | 21.5 | 27.7 |
| IH-ST-FS2601-06-06-04 | 3/8" ORFS (11/16-16) | 3/8" ORFS (11/16-16) | 1/4" NPTF (1/4-18) | 17 | 6.5 | 6.5 | 7.1 | 25 | 25 | 27.7 |
| IH-ST-FS2601-06-06-06 | 3/8" ORFS (11/16-16) | 3/8" ORFS (11/16-16) | 3/8" NPTF (3/8-18) | 19 | 6.5 | 6.5 | 10.3 | 25 | 25 | 31 |
| IH-ST-FS2601-08-08-06 | 1/2" ORFS (13/16-16) | 1/2" ORFS (13/16-16) | 3/8" NPTF (3/8-18) | 19 | 9.5 | 9.5 | 10.3 | 28 | 28 | 31 |
| IH-ST-FS2601-08-08-08 | 1/2" ORFS (13/16-16) | 1/2" ORFS (13/16-16) | 1/2" NPTF (1/2-14) | 22.2 | 9.5 | 9.5 | 13.5 | 28 | 28 | 37.3 |
| IH-ST-FS2601-12-12-12 | 3/4" ORFS (1-3/16-12) | 3/4" ORFS (1-3/16-12) | 3/4" NPTF (3/4-14) | 30.2 | 15.5 | 15.5 | 18.3 | 37.5 | 37.5 | 40.4 |
| IH-ST-FS2601-16-16-16 | 1" ORFS (1-7/16-12) | 1" ORFS (1-7/16-12) | 1" NPTF (1-11.5) | 36.5 | 20.5 | 20.5 | 23.8 | 41.5 | 41.5 | 50 |
| IH-ST-FS2601-20-20-20 | 1-1/4" ORFS (1-11/16-12) | 1-1/4" ORFS (1-11/16-12) | 1-1/4" NPTF (1-1/4-11.5) | 41.3 | 26 | 26 | 31.8 | 44.5 | 44.5 | 60.5 |
End 1 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. End 2 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. End 3 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. Y — Hex across flats — printed "Y HEX" on the manufacturer drawing. D1 — Dimension D1 on the manufacturer dimension drawing. D2 — Dimension D2 on the manufacturer dimension drawing. D3 — Dimension D3 on the manufacturer dimension drawing. M1 — Dimension M1 on the manufacturer dimension drawing. M2 — Dimension M2 on the manufacturer dimension drawing. M3 — Dimension M3 on the manufacturer dimension drawing. Ask us for the dimension drawing if you need it stamped.
Every size is available in 316 stainless steel on request — add “-SS” to the part number when you enquire.
What is it made from?▾
Which sizes are available?▾
What pressure is it rated to?▾
How does it seal?▾
Is there a stainless-steel version?▾
What is the lead time?▾
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