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Hydraulic Pipe Fittings
Our product range includes a wide range of stainless steel hydraulic welding nipple connector fittings, male stud connector din 2353, stainless steel 316 elbow npt f, ms hydraulic fittings and stainless steel pipe plug.Stainless Steel Hydraulic Welding Nipple Connector Fittings
Product Details:
| Minimum Order Quantity | 100 Piece |
| Connector Type | Elbow |
| Material | SS 304/304L |
| Nominal Pipe Size | 0.5 inch |
| Steel Grade | SS304L |
| Connection Type | Butt Weld |
| Thread Standard | ORFS (O-Ring Face Seal) |
| Material Grade | SS 316 |
| Size | 1/2" |
| Product Type | Union |
| Pressure Rating | 6000 psi |
| Pressure Series | Heavy Duty (S Series) |
| Application | Hydraulic Line |
| End Configuration | Tube x Male Thread |
| Angle | Straight |
| Seal Material | Metal To Metal |
| Surface Finish | Self-Colour |
| Ferrule Type | Single Ferrule |
What Is a Hydraulic Welding Nipple Connector?
A Hydraulic Welding Nipple Connector is a precision pipe fitting used in high-pressure hydraulic systems to connect pipes or hoses using welded and threaded or compression ends.
This fitting is typically made from Stainless Steel (SS 304 / 316) and is designed to provide:
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High strength
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Leak-proof connections
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Resistance to corrosion and vibration
| Feature | Description |
|---|---|
| Material | Stainless Steel 304 / 316 / 316L |
| Connection Type | Welded on one side, threaded or compression on the other |
| Pressure Rating | Up to 6000 psi (or more depending on size) |
| End Types | Butt Weld, Socket Weld, NPT, BSPT, Metric, JIC, ORFS, DIN 2353 |
| Sizes Available | 1/8" to 2” (inch) / 6mm to 38mm (metric) |
| Surface Finish | Machined, pickled & passivated |
| Sealing Method | Metal-to-metal or elastomeric seal (in some types) |
| Type | Description |
|---|---|
| Butt Weld x Male NPT Nipple | Weld one end to pipe, screw the other end into threaded fitting |
| Butt Weld x Female NPT Coupling | Weld one side, receive male thread on the other |
| Butt Weld x 24° DIN (DKO/DKI) | For DIN 2353 compression fitting systems |
| Socket Weld Nipple Connector | Insert pipe and weld – high strength |
| JIC 37° Flare x Weld End | For hydraulic hose end connection |
| ORFS Weld Connector | Flat face O-ring seal for leak-free performance |
| Grade | Key Properties |
|---|---|
| SS 304 | Cost-effective, general-purpose corrosion resistance |
| SS 316 | Best for marine, chemical, and high-pressure systems |
| SS 316L | Low carbon for improved weldability and resistance to intergranular corrosion |
Standards used:
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ASTM A182 / A479 – Forged or machined SS bar
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ASTM A403 – SS fittings
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ASME B16.11 – Forged steel socket-weld/threaded fittings
| Spec | Value |
|---|---|
| Size | 1/2” BW x 1/2” NPT-M |
| Length | 60 mm (customizable) |
| Pressure Rating | 6000 psi |
| Weld End Type | Butt-weld, Schedule 40 pipe |
| Thread End Type | NPT per ANSI B1.20.1 |
| Material | SS 316 |
| Industry | Application Examples |
|---|---|
| Hydraulic Power Units (HPU) | Pipe to valve/manifold connections |
| Oil & Gas | Skid piping, wellhead panels |
| Marine | High-pressure saltwater systems |
| Aerospace Ground Support | Hydraulic test lines |
| Industrial Automation | Hydraulic actuator piping |
| Construction Equipment | Pipe to hose assemblie |
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Male Stud Connector Din 2353
Product Details:
| Fitting Type | Straight |
| Thread Size | 3/8" |
| Steel Grade | SS 304L |
| Material | SS |
| Thread Type | Metric |
| Pressure Rating | 250 bar |
| Hose Size | 3/8 inch |
| Seal Material | PTFE |
| Application | Industrial, Marine, Pneumatic, Hydraulic Line |
| Temperature Range | -40 to 100 C |
| Inner Daimeter | 8 MM |
| Size/Diameter | 0.75 inch |
| End Connection Type | Threaded |
| Type of Coupling | Reducing |
| Usage/Application | Chemical Handling Pipe |
hat to Specify / Check for a Male Stud Connector
When selecting or ordering one, make sure you define:
| Parameter | Description |
|---|---|
| Tube/pipe side | Outer diameter (OD) and wall thickness of the tube you plan to connect |
| Stud side / thread | Type (e.g. NPT, BSP, Metric, etc.) and size |
| Sealing method | Cutting ring (ferrule), O‑ring, 24° taper + O‑ring, etc. |
| Series / pressure class | Light, Standard, Heavy — affects strength and pressure rating |
| Material grade | e.g. SS 304, SS 316 |
| Temperature / fluid compatibility | Different seals / materials may limit the operating temp or fluid types |
| Finish & surface treatment | Passivation, anti-galling thread treatments, etc. |
| Certifications / testing | Hydro test, material certificates (MTC), dimensional inspections |
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EO/EO‑2 Ermeto Taper Stud Male Connector — This is an Ermeto style taper stud male connector (EO / EO‑2 series), commonly used in hydraulic tubing systems.
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Stainless Steel Threaded Hydraulic Male Stud Coupling — A more generic threaded male stud coupling in SS, suitable for hydraulic / instrumentation lines.
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Stainless Steel 316 Elbow NPT F
Product Details:
| Minimum Order Quantity | 10 Piece |
| Tee Type | Female Tee |
| Material Grade | SS316 |
| Nominal Size | 15 mm (½ in) |
| Connection Size | 1/2 inch |
| Material | SS 316 |
| Size | 1/2 inch |
| Bend Angle | 90 degree |
| End Connection | Threaded |
| Standard | ASME B16.11 |
| Usage | Oil And Gas, Fire Fighting, HVAC, Irrigation, Water Supply, Chemical |
| Surface Finish | Mill Finish |
| Manufacturing | Forged |
| Application | Oil, Water, Gas, Chemical |
| Brand | Kalpataru |
Component Name
Stainless Steel 316 Elbow – Female NPT
(Also called: SS316 90° Threaded Elbow, FNPT Elbow)
📐 Configuration
Type: 90° Elbow
Connection: Female × Female
Thread: NPT (tapered) on both ends
🧱 Material Specifications
Material Grade:
SS 316 / ASTM A182 F316
Carbon Content:
Standard 316 (low carbon version: 316L available)
Manufacturing Process:
Forged or cast
Finish:
Natural / Pickled / Passivated
🔩 Thread Details
Thread Standard:
ASME / ANSI B1.20.1
Thread Type:
Female NPT (internal)
Thread Taper:
1 in 16 (¾″ per foot)
📏 Size Range (Typical)
Nominal Pipe Sizes (NPS):
1/8", 1/4", 3/8", 1/2"
3/4", 1", 1½", 2" (and above as per manufacturer)
📐 Dimensional Standard
Designed as per:
ASME B16.11 (for forged threaded fittings)
Dimensions include:
Center-to-end
Thread engagement length
Overall elbow radius
💪 Pressure Rating
(As per ASME B16.11)
Class 2000
Class 3000
Class 6000
Pressure rating decreases with increase in temperature.
🌡️ Temperature Range
SS 316:
Approx. –196 °C to +450 °C
(Subject to pressure–temperature limits)
🧪 Media Compatibility
Suitable for:
Water & steam
Air & gas
Oil & fuel
Hydraulic fluids
Chemicals & corrosive media (excellent resistance due to Mo content)
🛠️ Installation Notes
Use PTFE tape or approved thread sealant
Apply anti-seize compound for SS-to-SS connections to prevent galling
Avoid over-tightening (NPT seals by taper interference)
🏭 Typical Applications
Instrumentation piping
Process & utility lines
Oil & gas
Chemical & petrochemical plants
Power plants
Marine & offshore services
📌 Standard Description (Example for BOQ / PO)
Elbow, 90°, 1/2" NPT(F) × 1/2" NPT(F), ASTM A182 F316, ASME B16.11, Class 3000
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MS Hydraulic Fittings
Product Details:
| Fitting Type | Tee |
| Material | Carbon Steel |
| Size | 1/2" |
| Thread Standard | NPT (National Pipe Thread) |
| Usage/Application | Hydraulic Pipe |
| Type | Ferrule |
| End Connection Type | Threaded |
| Product Type | Elbow |
| Pressure Rating | 250 bar |
| Pressure Series | Heavy Duty (S Series) |
| Connection Type | Welded, Male, Female |
| End Configuration | Tube x Tube |
| Is It Rust Proof | Non Rust Proof |
| Diameter | 1/2" TO 2" |
| Surface Finish | Zinc Plated (Trivalent/Cr3) |
| Grade | MS,CS |
| Ferrule Type | Single Ferrule |
| Port Size | 1/2" |
| Brand | KALPATARU |
| Color | Black |
| Thread Size | BSP |
KALPATARU compression tube fittings are double ferrule-type fittings which provide
leak-proof, torque-free seals at the tubing connection.
They provide safety and eliminate hazardous leaks of fluids in the
instrumentation field for a process, pressure, hydraulic, and other applicable tubing systems
|
Types |
Tube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories |
|
Equivalent To |
KALPATARU |
|
Grade |
MS,CS |
|
Sizes |
1/8’’ to 2’’ and 3mm to 50mm |
|
Ends |
Threaded, Welding, JIC |
|
Pressure Rating |
1000 Psi, 3000 Psi, 6000 Psi, and 10000 Psi |
|
Threads |
NPT, BSPT, and BSP |
|
HS CODE |
73072900 |
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Stainless Steel Pipe Plug
Product Details:
| Minimum Order Quantity | 10 Piece |
| Shape | Hexagonal |
| Fitting Type | Coupler |
| Thread Type | NPT |
| Connection Type | Male |
| Usage/Application | Oil & Gas Industry |
| Size | 1 inch |
| Brand | KALPATARU |
| Material Grade | SS 304 |
| Fittings | THREDED |
| Material | SS |
| Color | SILVER |
| Surface Finish | Natural |
| Product Type | THREADED |
| Manufacturing Method | Forged |
| Quantity Per Pack | 10 |
| Standard | ASME B16.11 |
| Diameter | 1" |
KALPATARU compression tube fittings are double ferrule-type fittings which provide
leak-proof, torque-free seals at the tubing connection.
They provide safety and eliminate hazardous leaks of fluids in the
instrumentation field for a process, pressure, hydraulic, and other applicable tubing systems
Types
Tube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories
Equivalent To
SWAGELOK, PARKER, DK-LOK, HOKE
Grade
SS304 & SS316
Sizes
1/8’’ to 2’’ and 3mm to 50mm
Ends
Threaded, Welding, JIC
Pressure Rating
1000 Psi, 3000 Psi, 6000 Psi, and 10000 Psi
Threads
NPT, BSPT, and BSP
HS CODE
73072900
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Additional Information:
- Delivery Time: READY STOCK
