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Seal Proof

Single Spring Seal

Single-acting seal, balanced or unbalanced, for industrial and marine duty in either rotation.

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Seal characteristics
Single acting · Balanced / Unbalanced · Inside & outside mounted · Independent of direction of rotation · Torque transmission by secondary seal
Shaft diameter d1
10 … 100 mm
Pressure p
10 bar (max)
Seal Proof single spring mechanical seal — one large coil spring behind the rotating seal face.

Overview

A single-acting seal available balanced or unbalanced, mountable inside or outside, and independent of direction of rotation. Torque is transmitted by the secondary seal.

Face combinations include carbon, Stellite, Lecrolloy, ceramic, silicon carbide and plasma-sprayed ceramic, with nitrile, EPDM, Viton or PTFE secondary seals.

Specifications

Seal characteristics
Single acting · Balanced / Unbalanced · Inside & outside mounted · Independent of direction of rotation · Torque transmission by secondary seal
Shaft diameter d1
10 … 100 mm
Pressure p
10 bar (max)
Temperature t
-20°C to +180°C provisionalPublished as "– 20 … +180O C". The capital O is the lost degree symbol — the same substitution appears across the legacy site. Provisional pending confirmation by Seal Proof Engineering.
Velocity v
10 m/sec

Contact our engineering team for application-specific specifications.

Materials of construction

  • Face materials: Carbon/Stellite / Lecrolloy / Ceramic / Silicon Carbide / Plasma Sprayed Ceramic
  • Metal parts: SS 316, SS 304
  • Secondary seal: Nitrile, EPDM, Viton, PTFE

Applications

  • Industrial
  • Marine

Related products

Next step

Tell us the duty.

Media, temperature, pressure, shaft size and speed are usually enough for our engineers to specify single spring seal for your equipment.

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