Steam rotary union LPPA series

for vacuumfor compressed airfor water

Product overview
The pneumatic rotary union can perform rotation of 360 degrees. The medium includes inert gas such as compressed air, steam, vacuum, nitrogen, hydrogen and similar media. It can integrate electrical slip rings to transmit power and control signals. The sealing surface and sealing ring are made of special materials offering wear resistance, long life, corrosion resistance and no leakage. Rotary unions allow media to pass from a stationary part to a rotating part, enabling safe and reliable continuous media transmission while rotating.

Manufacturer summary
JINPAT Electronics provides a range of standard and customizable rotary unions to match various media types, speeds, pressures, channel numbers and channel diameters. Products use advanced sealing materials and processes to ensure intact sealing and smooth rotation. Large production capacity and inspection systems support quality and timely delivery. Custom solutions and integrated electrical-electro‑pneumatic designs are available to meet mixed transmission needs (fluid/gas + power/signals).

Features

• Continuable media: compressed air, nitrogen and other inert gases; suitable for air, vacuum, steam and similar media.
• Small size, light weight, low torque.
• Integration options: power transmission, switching signals, Ethernet, USB, industrial bus, sensors and other signals.
• Customizable joint parameters, integrated slip ring options, joint and pipe diameters.
• Sealing materials and construction designed for wear resistance, corrosion resistance and long life with no leakage.

Optional configurations

• Inner diameter & outer diameter
• Number of circuits
• Current & voltage ratings
• Wire length
• Housing material and color
• Protection level (IP)
• Signal and power transmitted separately or in combination

Quick technical highlights
Number of circuits: 2 / 4 / 6 / 8 / 10 / 12
Current: 2 A each circuit or higher
Insulation resistance: ≥500 VAC @ 50 Hz
Wire length: 250 mm (optional)
Voltage rating: 240 VAC/DC
Rotation: 360 degrees continuous

LM Standard Pneumatic Rotary Unions - Models (excerpted table)
Model Code | Passages (Gas/Flow) | Medium Type | Size | Joint thread | Flow Orifice
LPPA-LM0101 | 1 in 1 out | Air, Vacuum | Φ40*Φ6*41 | M5 | Φ3
LPPA-LM0201 | 2 in 2 out | Air, Vacuum | Φ40*Φ6*50 | M5 | Φ3
LPPA-LM0401 | 4 in 4 out | Air, Vacuum | Φ40*Φ6*68 | M5 | Φ3
LPPA-LM0601 | 6 in 6 out | Air, Vacuum | Φ40*Φ6*86 | M5 | Φ3
LPPA-LM0801 | 8 in 8 out | Air, Vacuum | Φ40*Φ6*104 | M5 | Φ3
LPPA-LM1001 | 10 in 10 out | Air, Vacuum | Φ40*Φ6*123 | M5 | Φ3
LPPA-LM1201 | 12 in 12 out | Air, Vacuum | Φ40*Φ6*156 | M5 | Φ3
LPPA-LM1601 | 16 in 16 out | Air, Vacuum | Φ40*Φ6*201 | M5 | Φ3
LPPA-LM2401 | 24 in 24 out | Air, Vacuum | Φ40*Φ6*307 | M5 | Φ3

LM Electro-Pneumatic Rotary Union with Capsule Slip Ring - Models (excerpt)
Model Code | Passages | Medium | Size | Joint thread | Flow Orifice | Power Circuits
LPPA-LM0101-0602 | 1 in 1 out | Air, Vacuum | Φ40*Φ6*60.6 | M5 | Φ3 | 6 * 2A
LPPA-LM0101-1202 | 1 in 1 out | Air, Vacuum | Φ40*Φ6*68.4 | M5 | Φ3 | 12 * 2A
LPPA-LM0101-1802 | 1 in 1 out | Air, Vacuum | Φ40*Φ6*74.9 | M5 | Φ3 | 18 * 2A
LPPA-LM0101-2402 | 1 in 1 out | Air, Vacuum | Φ40*Φ6*84.3 | M5 | Φ3 | 24 * 2A
LPPA-LM0201-0602 | 2 in 2 out | Air, Vacuum | Φ40*Φ6*69.6 | M5 | Φ3 | 6 * 2A
LPPA-LM0201-1202 | 2 in 2 out | Air, Vacuum | Φ40*Φ6*77.4 | M5 | Φ3 | 12 * 2A
... (further electro‑pneumatic model variations available with 6/12/18/24 circuits and corresponding sizes)

Pneumatic Rotary Unions with Through Bore Design (φ15–φ150) - Selected models
Model Code | Number of Circuits | Medium | Bore Diameter | Max Working Pressure | Rotating Speed | Connector Type | Size | Torque | Expected Life Span | Lead Time
LPPL015-08A | 8 | Compressed Air | Bore 15 | 0–1 MPa | 0–500 rpm | G1/4 | φ15*φ135*265 | ≤10 N·m | ≥20 million | 3–4 weeks
LPPL025-02A | 2 | Compressed Air | Bore 25 | 0–0.6 MPa | 0–20 rpm | G3/8 | φ25*φ98*116 | ≤5 N·m | ≥20 million | 3–4 weeks
LPPL040-02A | 2 | Compressed Air | Bore 40 | 0–0.6 MPa | 0–5 rpm | G1/8 | φ40*φ119*94.2 | ≤8 N·m | ≥20 million | 3–4 weeks
LPPL060-01A | 1 | Compressed Air | Bore 60 | 0–1 MPa | 0–1 rpm | G3/4 | φ60*φ216*126 | ≤10 N·m | ≥20 million | 4–5 weeks
LPPL090-02A, LPPL120-02A, LPPL150-01A etc. – larger through-bore models with correspondingly higher bore diameters, pressures, speeds and torques are listed in the product tables.

Hydraulic Rotary Unions - Selected models
Model Code | Number of Circuits | Medium | Bore Diameter | Max Working Pressure | Rotating Speed | Connector Type | Size | Torque | Expected Life Span | Lead Time
LPPL000-02L | 2 | Water | / | 0–0.5 MPa | 0–120 rpm | G1/4, M6 | φ67*100 | ≤80 N·m | ≥10 million | 4–5 weeks
LPPG014-02L | 2 | Hydraulic Oil | Bore 14 | 0–25 MPa | 0–10 rpm | G1/2 | φ112*φ14*149 | ≤200 N·m | ≥10 million | 4–5 weeks
LPPG018-04L | 4 | Hydraulic Oil | Bore 18 | 0–25 MPa | 0–25 rpm | G1/2 | φ135*φ18*232 | ≤200 N·m | ≥10 million | 4–5 weeks

Electric Pneumatic Integrated Slip Rings - Examples
Combined model codes show pneumatic passages integrated with capsule or other slip ring types; example codes and configurations include multiple circuits for power (e.g. 6*2A, 12*2A, 18*2A, 24*2A), various bore sizes and outer dimensions; rotating speeds and pressure ratings follow the pneumatic/hydraulic families above. Detailed model tables list full configuration data for each code.

Notes
Tables above are representative extracts from the product tables on the page. Many more model variants and full dimensional/details tables are provided covering standard pneumatic, electro-pneumatic (with capsule slip ring), through-bore designs, hydraulic unions and integrated electric-pneumatic units. For implementation and selection consider media type, number of passages, bore size, required current/voltage, wire length and connector types.

caractéristiques / spécifications techniques

• Continuous rotation: 360°
• Supported media: compressed air, vacuum, steam, nitrogen, hydrogen and other inert gases; hydraulic oil and water in hydraulic models
• Number of circuits (electrical): typical ranges 2–24 circuits depending on model and integration
• Current per circuit (typical): 2 A or higher (configurable)
• Voltage: up to 240 VAC/DC (typical)
• Insulation resistance: ≥500 VAC @ 50 Hz
• Wire length (standard): 250 mm (optional lengths available)
• Bore / outer dimensions: multiple options from φ15 up to φ150 (through-bore designs) and larger outer sizes for multi‑passage units
• Max working pressures: pneumatic units typically 0–0.6/1 MPa; some hydraulic units up to 25 MPa (model dependent)
• Rotating speed: model dependent (examples: 0–500 rpm for small through-bore pneumatic; 0–1 rpm for large slow-turning designs; up to 120 rpm for certain hydraulic types)
• Torque: ranges from ≤5 N·m (small models) to ≤200 N·m (heavy hydraulic models)
• Expected mechanical life: typically ≥10–20 million revolutions depending on model and application
• Integration options: electrical slip rings (power & signal), Ethernet, USB, industrial bus, sensors, capsule slip ring integration and customized combinations