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Valvenok Mechanical Seals

Products / Mechanical Seals

Mechanical Seals

Agitator, Cartridge, Dry-Running & Component Seals

A complete range of mechanical seals for agitators, glass-lined reactors and process pumps. Engineered for reliable sealing across the most demanding chemical, pharmaceutical and industrial applications.

AS91
AS91

AS91

Single Agitator Mechanical Seal

Single mechanical seal for top-entry agitators. Balanced design with a wide metric size range — reliable sealing for standard mixing and reactor service.

Applications: Chemical Processing, Pharmaceuticals, Mixing & Reactors

Single Seal
Top-Entry Agitators
25mm – 150mm
Balanced Design
View Range →
AS92
AS92

AS92

Double Agitator Mechanical Seal

Heavy-duty double mechanical seal for demanding agitator service. Pressurised barrier fluid arrangement for safer sealing of hazardous and high-purity fluids.

Applications: Hazardous Service, Pharmaceuticals, Fine Chemicals

Double Seal
Pressurised Barrier
25mm – 150mm
Heavy-Duty
View Range →
AS93
AS93

AS93

Bottom-Entry Double Mechanical Seal

Compact double mechanical seal engineered specifically for bottom-entry agitators. Optimised geometry for smaller-bore mixers and reactors.

Applications: Bottom-Entry Mixers, Reactors, Pilot Plants

Double Seal
Bottom-Entry
19mm – 75mm
Compact Design
View Range →
AS94
AS94

AS94

Glass-Lined Reactor Single Mechanical Seal

Single mechanical seal purpose-built for glass-lined reactors. Engineered to suit the geometry and service conditions of GL reactor agitator shafts.

Applications: Pharmaceuticals, Fine Chemicals, Specialty Chemicals

Single Seal
Glass-Lined Reactors
40mm – 160mm
GL Service
View Range →
AS104
AS104

AS104

Glass-Lined Reactor Single Mechanical Seal — AS104

Premium single mechanical seal for glass-lined reactors. Extended size range and upgraded performance envelope for demanding GL reactor service.

Applications: Pharmaceuticals, Fine Chemicals, GL Reactor Service

Single Seal
Glass-Lined Reactors
40mm – 160mm
Premium
View Range →
AS105
AS105

AS105

Glass-Lined Reactor Double Mechanical Seal

Double mechanical seal for glass-lined reactors operating under high pressure or with hazardous fluids. Pressurised barrier fluid arrangement.

Applications: Hazardous GL Service, Pharmaceuticals, Specialty Chemicals

Double Seal
Glass-Lined Reactors
40mm – 160mm
High Pressure
View Range →
CS52CX
CS52CX

CS52CX

Single Cartridge Mechanical Seal

Pre-assembled single cartridge seal for drop-in installation. Eliminates installation error and reduces downtime — ideal for general process pump service.

Applications: Process Pumps, Water Treatment, General Industry

Single Cartridge
Pre-Assembled
25mm – 90mm
Drop-In Install
View Range →
CS53CX
CS53CX

CS53CX

Double Cartridge Mechanical Seal

Pre-assembled double cartridge seal for safer sealing of hazardous, toxic or high-purity fluids. Drop-in installation with pressurised or unpressurised barrier fluid.

Applications: Hazardous Service, Chemical Processing, Pharmaceuticals

Double Cartridge
Pre-Assembled
25mm – 90mm
Hazardous Service
View Range →
DS71
DS71

DS71

Dry-Running Mechanical Seal

Dry-running mechanical seal engineered to operate without process liquid lubrication. Wide size range from 15mm to 150mm for diverse dry or gas service.

Applications: Dry Service, Gas Pumps, Specialty Applications

Dry-Running
No Liquid Lubrication
15mm – 150mm
Gas-Compatible
View Range →
PS31
PS31

PS31

Conical Spring Unbalanced Seal

Conical spring unbalanced component seal in imperial sizes. Versatile pusher seal for general-purpose pump service across the full 0.5" – 3.5" range.

Applications: General Pumps, Water, Light Industry

Conical Spring
Unbalanced
0.5" – 3.5"
Component Seal
View Range →
PS34
PS34

PS34

Single Spring Mechanical Seal

Heavy-duty single spring component seal in imperial sizes. Robust pusher seal for industrial pump service across the full 0.875" – 3.5" range.

Applications: Industrial Pumps, Process Service, General Industry

Single Spring
Imperial Sizes
0.875" – 3.5"
Heavy-Duty
View Range →
PS35E
PS35E

PS35E

Elastomer Bellows Mechanical Seal

Elastomer-bellows component seal with broad imperial size range. Bellows construction accommodates shaft movement and thermal expansion.

Applications: HVAC, Water, Chemical Pumps, General Industry

Elastomer Bellows
Imperial Sizes
0.5" – 4.0"
Wide Range
View Range →
PS37
PS37

PS37

Reverse Balanced Mechanical Seal

Reverse-balanced multi-spring component seal for high-pressure pump service. Engineered for balanced operation across the 0.75" – 4.0" imperial range.

Applications: High-Pressure Pumps, Oil & Gas, Process Service

Reverse Balanced
Multi-Spring
0.75" – 4.0"
High Pressure
View Range →
PS38
PS38

PS38

Multi-Spring Mechanical Seal

Premium multi-spring component seal with extended imperial size range. Balanced operation and even spring load distribution for demanding service.

Applications: Demanding Service, Oil & Gas, Chemical Processing

Multi-Spring
Premium
0.625" – 4.0"
Balanced
View Range →
AS91N
AS91N

AS91N

Single Agitator Mechanical Seal — Narrow Profile

Narrow-profile single mechanical seal for top-entry agitators with tight space constraints. Built to order — contact us for sizing, materials and lead time.

Applications: Chemical Processing, Pharmaceuticals, Space-Constrained Installations

Single Seal
Narrow Profile
Top-Entry Agitators
Made to Order
View Range →
AS95
AS95

AS95

Single Agitator Mechanical Seal — Extended Range

Single mechanical seal for agitator service across an extended size range. Made to order — contact us for sizing, materials and lead time.

Applications: Chemical Processing, Pharmaceuticals, Mixing & Reactors

Single Seal
Extended Range
Agitator Service
Made to Order
View Range →
AS98
AS98

AS98

Double Agitator Mechanical Seal — High Performance

High-performance double mechanical seal for demanding agitator service. Pressurised barrier fluid arrangement for hazardous and high-purity fluids. Made to order.

Applications: Hazardous Service, Pharmaceuticals, Fine Chemicals

Double Seal
High Performance
Pressurised Barrier
Made to Order
View Range →
AS99N
AS99N

AS99N

Single Agitator Mechanical Seal — Narrow Profile

Narrow-profile single mechanical seal for tight installations. Engineered for agitators with restricted radial space. Made to order — contact us for specifications and lead time.

Applications: Space-Constrained Installations, Pharmaceuticals, Specialty Chemicals

Single Seal
Narrow Profile
Agitator Service
Made to Order
View Range →
AS103
AS103

AS103

Glass-Lined Reactor Mechanical Seal

Mechanical seal engineered for glass-lined reactor service. Built to match GL reactor geometry and service conditions. Made to order — contact us for sizing and materials.

Applications: Pharmaceuticals, Fine Chemicals, Specialty Chemicals

Glass-Lined Reactors
GL Service
Made to Order
Custom Sizing
View Range →
AS110
AS110

AS110

Heavy-Duty Agitator Mechanical Seal

Heavy-duty mechanical seal for large-bore agitators and high-torque service. Built to order for specific shaft sizes and service conditions.

Applications: Heavy Industry, Large Reactors, High-Torque Agitators

Heavy-Duty
Large Bore
High-Torque Service
Made to Order
View Range →
AS-LB-01
AS-LB-01

AS-LB-01

Lip Seal — Agitator Service

Lip-seal arrangement for agitator service where mechanical seals are unsuitable. Cost-effective sealing for low-pressure, low-speed applications. Made to order.

Applications: Low-Pressure Mixers, Storage Tank Agitators, General Service

Lip Seal
Low Pressure
Agitator Service
Made to Order
View Range →
AS-LB-02
AS-LB-02

AS-LB-02

Lip Seal — Heavy-Duty Agitator Service

Heavy-duty lip-seal arrangement for agitator service. Upgraded performance over AS-LB-01 for higher loads and extended life. Made to order.

Applications: Industrial Mixers, Reactor Agitators, Heavy-Duty Service

Lip Seal
Heavy-Duty
Extended Life
Made to Order
View Range →
BS14
BS14

BS14

Bellows Mechanical Seal

Metal bellows mechanical seal for high-temperature service and applications where elastomers are unsuitable. Made to order — contact us for sizing and materials.

Applications: High-Temperature Service, Hot Oil, Steam, Specialty Chemicals

Bellows Seal
High Temperature
Elastomer-Free
Made to Order
View Range →
BS14D
BS14D

BS14D

Double Bellows Mechanical Seal

Double metal bellows mechanical seal for high-temperature service with pressurised barrier fluid. Safer sealing of hazardous fluids at elevated temperatures. Made to order.

Applications: Hazardous High-Temp Service, Hot Oil, Specialty Chemicals

Double Bellows
High Temperature
Pressurised Barrier
Made to Order
View Range →

24 Seal Models

Complete Range

Single & Double

Arrangements

Metric & Imperial

Size Standards

0.5" – 160mm

Size Coverage

Fast Dispatch

Availability