SULZER® MECHANICAL SEALS

HS1

  • Safeseal JCS1 Replacement
  • Single Seal, Balanced
  • Semi-Cartridge Design
  • Suits Sulzer AHLSTAR Pumps
  • For Integrated Chambers

PARTS

1

2

3

4

Integrated Chamber

Flush Port (Plugged)

Bolt Fastener

Impeller

HS1 is a single mechanical seal in a semi-cartridge, stationary-based, wave-spring design. It is a direct replacement for pumps fitted with John Crane Safematic® Safeseal Type JCS1. Seal faces are lubricated by the pumped product.

 

It is suitable for Sulzer AHLSTAR pumps fitted with integrated seal chambers (MS11, MS12 & MS21). It allows seal replacement via the impeller-end and bolt fastening through the backplate.

  • Operating conditions¹

A

B

C

D

E

F

G

H

I

J

K

L

M

Spacer Sleeve O-ring

Spacer Sleeve O-ring

Rotary O-ring

Spacer Sleeve

Rotary Holder

Rotary Face / Ring

Stationary Face / Ring

Stationary Holder

Stationary O-ring

Seal Holder O-ring

Seal Holder O-ring

Set Screw with Pin

Wave Spring

EQUIVALENT

Safeseal JCS1

CKSA™ / AGCS™

LP-S

Temperature:

Pressure:

Speed:

-30°C to +90°C

< 16 bar, 232 psi, 1.6 MPa

< 20m/s, 4000 fpm

rpm < 1200000/(3.14 x D1)

¹Guide-values only (due to diversity of possible applications). Enquire for specific-use cases. Maximum values of each parameter cannot be applied together.

DATA SHEET

  • Materials

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts:

(SiC)

(SiC) or (CAB)

Viton®

316S.S.

HS1 - Data Sheet

(_) refers to shrink fitted

OEM names, brands, model or part numbers are used solely for reference. Our components are engineered to deliver performance and service life equivalent to or exceeding that of OEM parts when correctly installed and appropriately applied. Sulzer® AHLSTAR is a registered trademark of its respective company. Pump Seal Supplies Pty Ltd are not representative of, nor affiliated with Sulzer® AHLSTAR.

AHLSTAR - INTEGRATED SINGLE SEAL

PRODUCT INFORMATION

INSTALLATION & OPERATION

Operation:

The sliding faces get their lubrication from the pumped product. Do not run the seal dry.

 

Installation:

1. From the impeller-side, slide the stationary assembly (parts G - M) into the end of the seal chamber.

2. Rotate the stationary assembly until the bolt (3) is able to be fastened.

3. Install the rotary and spacer sleeve assembly (parts A - F) and tighten with the impeller (4).

4. Ensure all flush ports (2) are plugged prior to pump operation.