Water rotary union SE 24

for oilfor gasfor air

Description
DSTI SE Series 24-passage rotary unions provide 24 independent fluid passages in a compact assembly designed for high-pressure, space-constrained industrial applications. Standard units include threaded radial connections on shaft and housing; optional axial O-ring face-seal shaft connections are available and must be specified at order. SE models are engineered to pair directly with electrical slip rings for combined fluid and electrical transfer.

Key features

• 24 independent flow passages
• Standard radial threaded side connections: SAE-ORB or BSPP
• Optional axial O-ring face-seal shaft connections (specify at order)
• Compatible with electrical slip rings for combined fluid/electrical transfer
• Optional mounting: shaft flange mount or housing flange mount

Pressure & speed
Highlighted SE capability: 7,500 PSI (515 BAR) maximum pressure and 300 RPM maximum rotational speed. Other series/options support lower or higher ratings; consult product options for series-specific limits.

Connection types
Typical SE Series connections: SAE-ORB and BSPP radial threaded side ports. Axial O-ring shaft connections available as option for face/flush mounting.

Suitable media

• Air / Gas
• Coolant
• Oil / Hydraulic (petroleum-based)
• Water / Glycol (rust inhibitor required)

Notes on media and sealing
Water/glycol and coolant media must contain rust inhibitors. Oil/hydraulic media must be petroleum-based. Minimum torque and service life depend on media, pressure, speed and duty cycle; published torque values are measured at zero pressure with oil/hydraulic media (or air/gas for SPS series). Applications above 220°F (105°C) or water use above 212°F (100°C) require alternative seal materials.

Purchasing & model notes
SE Series units are supplied as configured part numbers (example: SE-11241) with specified passage sizes, connection types and dimensional parameters. Typical sample: SE-11241 — 24 passages; #4 SAE-ORB / G1/8"-28 BSPP options; passage size 0.187" (4.75 mm); diameter ~4.437" (112.7 mm); length ~21.970" (558.0 mm); through bore 0.375" (9.525 mm); example minimum torque 528 in-lbs (59.66 Nm) (model-specific). Specify axial O-ring option at time of order if required.

Technical specifications

• Series / Model: SE Series (24-passage variants)
• Passage count: 24 independent flow passages
• Maximum pressure: 7,500 PSI (515 BAR) — SE highlight
• Maximum speed: 300 RPM — SE highlight
• Maximum vacuum: 30 HG
• Temperature range: 0°F to 220°F (-18°C to 105°C)
• Housing material: Carbon Steel (Black Oxide)
• Shaft material: Carbon Steel (Black Oxide)
• Standard connections: radial SAE-ORB or BSPP (threaded side connections on shaft and housing)
• Shaft connection options: radial & optional axial O-ring face seal
• Optional mounts: shaft flange mount; housing flange mount
• Suitable media: Air/Gas, Coolant, Oil/Hydraulic, Water/Glycol
• Integration: Designed for integration with electrical slip rings for combined fluid and electrical transfer
• Notes: Minimum torque is application-specific and depends on media, pressure and operating conditions