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Ebara CDXHS – Hard-Face Seal

Ebara CDXHS stainless steel centrifugal pumps with the HS hard-face mechanical seal. The proven Ebara CDX single-stage, end-suction pump in pressed AISI 304 stainless steel, built with Ebara's optional HS seal — silicon carbide on silicon carbide faces with an FPM (Viton) bellows, for longer seal life where limescale or fine particles wear out standard ceramic/carbon faces. Same hydraulics as the standard CDX range: heads to 41 m and flows to 250 l/min, in 230v single-phase and 400v three-phase IE3 versions.

9
Hydraulic sizes
0.37–1.8 kW
Motor range
41 m
Maximum head
250 l/min
Maximum flow
SiC / SiC
Seal faces

Choose your model

Model Supply kW Max head (m) Max flow (l/min) Suction × discharge Part number
CDXHSM/E 70/05 230v 1ph 0.45 21.1 90 G1¼" × G1" 1615054900E
CDXHSM/E 70/07 230v 1ph 0.75 29.7 80 G1¼" × G1" 1615094900E
CDXHSM/E 90/10 230v 1ph 0.9 30.5 110 G1¼" × G1" 1615104900E
CDXHSM/E 120/07 230v 1ph 0.75 23.1 180 G1¼" × G1" 1625094900E
CDXHSM/E 120/12 230v 1ph 1.1 31.2 160 G1¼" × G1" 1625104900E
CDXHSM/E 120/20 230v 1ph 1.8 40.5 160 G1¼" × G1" 1625204900E
CDXHSM/E 200/12 230v 1ph 1.1 22.8 250 G1½" × G1" 1635104900E
CDXHSM/E 200/20 230v 1ph 1.8 34.5 250 G1½" × G1" 1635204900E
CDXHS/A 70/05 400v 3ph IE3 0.37 21.1 90 G1¼" × G1" 1615054904I
CDXHS/A 70/07 400v 3ph IE3 0.55 29.7 80 G1¼" × G1" 1615094904I
CDXHS/I 90/10 400v 3ph IE3 0.75 30.5 110 G1¼" × G1" 1615104904I
CDXHS/A 120/07 400v 3ph IE3 0.55 23.1 180 G1¼" × G1" 1625094904I
CDXHS/I 120/12 400v 3ph IE3 1.1 31.2 160 G1¼" × G1" 1625104904I
CDXHS/I 120/20 400v 3ph IE3 1.5 40.5 160 G1¼" × G1" 1625204904I
CDXHS/I 200/12 400v 3ph IE3 1.1 22.8 250 G1½" × G1" 1635104904I
CDXHS/I 200/20 400v 3ph IE3 1.5 34.5 250 G1½" × G1" 1635204904I
CDXHS/I 200/25 400v 3ph IE3 1.8 41 250 G1½" × G1" 1635254904I

The HS seal

Silicon carbide faces
SiC on SiC — the hardest common seal pairing, resisting wear from limescale and fine abrasives.
Bellows design
FPM (Viton) bellows seal with AISI 316 frame, spring and spacer ring.
Rated to 110°C
HS seal rated to 110°C fluid temperature, against 90°C for the standard CDX seal.
All-stainless wetted parts
Pressed AISI 304 casing, impeller and cover; AISI 303 shaft; IP55 Class F motor.
Clean or lightly contaminated water: the HS seal extends seal life with scale and fine particles, but the CDX is not designed for solids or sludge. On water, Ebara recommend a maximum of 75°C with FPM elastomers for the longest seal life.

FAQ

How do I choose a size?
The first number is the hydraulic frame (70, 90, 120, 200) — higher means more flow. The second is the head class — higher means more pressure. Check the maximum head and flow columns above, or open any model for its full performance table.
Why choose a hard-face seal?
Silicon carbide on both faces is much harder than ceramic and carbon, so it resists wear from scale and fine particles and copes better with short spells of poor lubrication.
Single or three phase?
Single-phase 230v models have a built-in capacitor and thermal overload. Three-phase 400v models are IE3 and need a starter or motor protection device fitted by the installer.
Is the CDX self-priming?
No. It needs a flooded suction, or a foot valve with the casing primed before start-up.
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17 products

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    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 70/05 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1615054900E

    Ebara CDXHSM/E 70/05 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

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    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 70/07 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1615094900E

    Ebara CDXHSM/E 70/07 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
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    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 90/10 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1615104900E

    Ebara CDXHSM/E 90/10 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 120/07 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1625094900E

    Ebara CDXHSM/E 120/07 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 120/12 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1625104900E

    Ebara CDXHSM/E 120/12 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
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    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 120/20 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1625204900E

    Ebara CDXHSM/E 120/20 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
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    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 200/12 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1635104900E

    Ebara CDXHSM/E 200/12 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHSM/E 200/20 Stainless Centrifugal Pump, Hard-Face Seal 230v - 1635204900E

    Ebara CDXHSM/E 200/20 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
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    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/A 70/05 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1615054904I

    Ebara CDXHS/A 70/05 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/A 70/07 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1615094904I

    Ebara CDXHS/A 70/07 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/I 90/10 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1615104904I

    Ebara CDXHS/I 90/10 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/A 120/07 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1625094904I

    Ebara CDXHS/A 120/07 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/I 120/12 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1625104904I

    Ebara CDXHS/I 120/12 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/I 120/20 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1625204904I

    Ebara CDXHS/I 120/20 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/I 200/12 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1635104904I

    Ebara CDXHS/I 200/12 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/I 200/20 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1635204904I

    Ebara CDXHS/I 200/20 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product
    Logo for Ebara
    Ebara CDXHS – Hard-Face Seal
    Ebara CDXHS/I 200/25 Stainless Centrifugal Pump, Hard-Face Seal 400v - 1635254904I

    Ebara CDXHS/I 200/25 single-stage centrifugal pump in pressed AISI 304 stainless steel, fitted with Ebara’s HS hard-face mechanical seal — silicon carbide on silicon carbide…

    View Product