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Mechanical Seals

Multi Spring Seals

Compact even-load process seal

A multi-spring mechanical seal delivering uniform face load in a short axial envelope for clean process pumps and tight seal chambers.

  • Multiple springs give uniform, stable face load
  • Short axial envelope fits tight seal chambers
  • Springs isolated from product for consistent force
  • Wide face and elastomer material choice
  • Suited to clean hydrocarbon and chemical service
Add to QuoteView Datasheet
Temperature
-40°C to +220°C
Pressure
Up to 25 bar
pH range
1 – 13
Multi-spring mechanical seal with a ring of small springs around the seal face
Mechanical SealsREF · multi-spring-seal
Technical DatasheetSPEC

The numbers, on the record

Every figure below is the specification we hold ourselves to — material, service envelope, media compatibility and conformance. Download it as a standalone document for your dossier.

SealGuard

Technical Datasheet

Doc No.
DS-MULTI-SPRING-SEAL
Revision
Rev. A
Issue
2026-Q3
Class
Mechanical Seals

Multi Spring Seals

Compact even-load process seal

01

Material & Construction

Carbon / SiC / tungsten-carbide faces; FKM, EPDM or FFKM secondary seals; 316 / Alloy hardware

02

Service Envelope

Temperature range-40°C to +220°C
Pressure ratingUp to 25 bar
pH range1 – 13
03

Media Compatibility

HydrocarbonsSolventsMineral oilsProcess chemicals
04

Dimensions & Sizing

Shaft Ø12–100 mm · metric & inch · EN 12756

05

Standards & Conformance

  • EN 12756 (DIN 24960)
  • API 682 (component)
06

Certifications

  • ISO 9001
07

Additional Specifications

Face combinationCarbon / SiC / TC
Surface speedUp to 20 m/s
SpringMultiple coil (even load)
BalanceUnbalanced (balanced option)

Data is typical and for guidance only — confirm suitability against your service conditions. Multi Spring Seals · DS-MULTI-SPRING-SEAL · Rev. A.

Specify & QuoteORDER

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Choose the material grade and size that match your duty, set a quantity, and add a fully-specified line to your quote. No prices, no obligation — our engineers confirm specification and lead time on every enquiry.

01

Material grades

  • Carbon vs silicon carbide faces
  • SiC vs SiC faces
  • Tungsten carbide vs carbon faces
  • FKM / EPDM / FFKM elastomers
  • 316 / Alloy C-276 springs & hardware
02

Sizes & configurations

  • Shaft Ø12–100 mm
  • Metric (EN 12756)
  • Inch shaft sizes
  • Rotating or stationary spring design
  • Multiple spring counts
  • OEM dimensional equivalents
Configure your lineRFQ

In ServiceUSE

Where it holds the line

Where the seal chamber is short and the medium is clean, the multi-spring seal excels. A ring of small springs spreads closing force evenly around the seal face, giving stable performance and low leakage in a compact axial length that fits tight stuffing boxes and API process pumps. Because the springs sit outside the product on most designs, they stay clean and consistent — making this the precise, predictable choice for hydrocarbon, chemical and process duty.

Typical applications

  • 01API process and transfer pumps
  • 02Hydrocarbon and solvent service
  • 03Clean chemical-process pumps
  • 04Boiler-feed and condensate pumps
  • 05Compressors and blowers

Industries served

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