
Astra Seals AS FlowUnit for mechanical seal support. Compact flow monitoring unit for seal flush and cooling systems. Integrates flow indicator, pressure gauge, and throttle valve in a single unit. Enables quick visual verification of seal support system operation.
SS316L body / Flow indicator / Pressure gauge / SS316 connections
| Model | Materials | GA |
|---|---|---|
| AS FlowUnit | SS316L body / Flow indicator / Pressure gauge / SS316 connections | — |
Pressure
0 ~ 1.5 MPa
Temperature
-20 ~ 120 ºC
Mediums
Flow monitoring and pressure indication for mechanical seal support systems.
Customization Available
Available with various gauge ranges and connection sizes. Contact us with your requirements.
Flow Range
0.5 ~ 15 L/min (visual indicator)
Connection Size
1/4" NPT / 1/2" NPT
Pressure Gauge Range
0 ~ 1.6 MPa / 0 ~ 2.5 MPa
Design Pressure
0 ~ 1.5 MPa
Throttle Valve
Integrated needle valve for flow adjustment
Mounting
Panel or pipe mount
Applicable Standards
API 682 flush plan monitoring
Notes
Provides at-a-glance verification that seal flush flow and pressure are within operating range. Recommended for critical seal installations.

Astra Seals AS Plan 53 Seal Support System. Pressurized barrier fluid system for dual mechanical seals. Includes pressure vessel, pressure gauges, safety valve, fill/drain valves, and cooling coil. Maintains barrier fluid pressure above process pressure to prevent product leakage. Compliant with API 682 Plan 53A/53B/53C configurations.

Astra Seals AS Plan 53B Seal Support System. Pressurized barrier fluid system with integrated finned tube heat exchanger for aircooled applications. Includes pressure vessel, pressure gauges, safety valve, fill/drain valves, and finned cooling tubes. Designed for installations where cooling water is unavailable. Compliant with API 682 Plan 53B configuration.

Astra Seals AS Cyclone Separator for mechanical seal support. Removes solid particles from seal flush fluid using centrifugal separation. Protects seal faces from abrasive damage in slurry pump applications. No moving parts for maintenancefree operation.
Compare adjacent seal types to find the best fit for your service conditions, pressure and temperature range.

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