Type JCS2 O-ring Pusher Seals | John Crane Mechanical Seals
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Type JCS2

Integrated Double Mechanical Seal for Demanding Conditions

Type JCS2 seals are designed to be used in pumps for environmentally hazardous and abrasive liquids when operating limits for single-acting seals are exceeded. The double-balanced design of the seal allows the use of both pressurized and non-pressurized sealant fluid. This design ensures reliable and long-lasting operation under the most demanding conditions, reducing seal fluid consumption, and prevents environmental emissions.

Several variant of the design available for different services:

JCS2P — OEM (Sulzer Ahlstar Up) Engineered double external stationary spring O-ring mounted seal

JCS2A — Double application-specific seal for Sulzer liquid ring pumps and Andritz ACP pumps

JCS2M — Double application-specific seal for Sulzer multistage pumps

JCS2-MC — Double application-specific seal for Andritz MC-pumps

JCS2E — Double application-specific seal for Sulzer hot liquid pumps

Caractéristiques

  • California Residents: PROPOSITION 65 WARNING
  • The seal is fully integrated into the pump.
  • No measurements required for installation, reducing risk for error.
  • Shaft misalignment does not pulsate the spring or wear out the O-ring.
  • Torque transmission with super elastic devices, combined with no drive pins at seals faces. This eliminates possible start-up failures.
  • Seal utilizes the integrated and advanced SmartFlow seal water control technology, reducing more than 90% seal water savings usage.

Paramètres

Limites de température

350 °F/180 °C
Limites de pression

Pression du processus : 350 psi(g)/25 bar(g)

Pression d’eau d’étanchéité : 215 psi(g)/15 bar(g)
Limites de vitesse

65 pi/s/20 m/s
Matériaux standard

SiC/SiC ou SiC/SiC

Joints toriques : PTFE (côté produit), EPDM, Viton

Pièces métalliques : EN 1.4436/1.4460 (AISI 316/329)

Ressorts : EN 1.4436 (AISI 316)

Applications recommandées

  • Pompes de processus
Fonctionne avec
SmartFlow SmartFlow
SmartFlow IG SmartFlow IG
Safeunit™ Safeunit™
Safeunit™ Ultima Safeunit™ Ultima
Safeclean Safeclean
GR1/1C GR1/1C

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