AS18B mechanical seal

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AS18B mechanical seal Specification

Feature
Corrosion resistant; Easy to install; Long service life

Hardness
High hardness for superior wear resistance

Tolerance
0.01 mm

Material
Carbon, Ceramic, Stainless Steel, Viton/EPDM Elastomers

Style
AS18B Single Spring

Shape
Round

Temperature
-20C to +180C

Application
Water pumps, chemical pumps, oil pumps, centrifugal pumps

Rotation Direction
Bi-directional

Rotary Faces
Carbon, Ceramic, Silicon Carbide

Maximum Pressure
Up to 2.5 MPa

Dynamic Run-out
0.1 mm

Shaft Size Range
10 mm to 50 mm

Spring Material
Stainless Steel AISI 304/316

Seal Type
Balanced Mechanical Seal

Suitable Medium
Clean water, Oil, Light chemicals

Stationary Faces
Ceramic, Silicon Carbide

About AS18B mechanical seal

CHARACTERISTICS

Balanced.
Single conical spring
Dependent on the rotation direction.

OPERATING LIMITS:

d1= 10 to 80 mm
p= 25 kg/cm
v= 15 m/s
t=20 to 200 deg C

(*) The temperature resistance depends on the material of the secondary seals used. The operating limits are defined by the PV factor which is determined for the sealing system characteristics and those of the application

This mechanical seal has an extremely versatile and functional design and is suitable for working at pressures of up to 25 kg/cm . The rotating part of the seal can be combined with a large variety of stationary parts, which offers a wide range of combinations. Its structure allows secondary seals made of different materials to be used: FKM, Aflas, FFKM, FEP, NBR, HNBR and materials complying with special standards such as FDA, USP, EC 1935/2004, etc.

Exceptional Durability and Performance

The AS18B balanced mechanical seal is crafted with high-hardness components and precision tolerance to deliver superior wear resistance and extended operational longevity. Its robust construction withstands demanding conditions, making it a reliable choice for various fluid handling applications.

Versatile Compatibility

With a bi-directional design and suitability for clean water, oils, and light chemicals, the AS18B seal can be utilized across multiple pump types. It accommodates shaft sizes from 10 mm to 50 mm, ensuring broad compatibility with pumps in industrial and commercial environments.

Advanced Corrosion and Chemical Resistance

Key materials such as stainless steel (AISI 304/316), advanced ceramics, and elastomers like Viton or EPDM protect the seal from corrosive environments. The AS18B remains reliable and durable, even during exposure to aggressive media or fluctuating temperatures.

FAQ's of AS18B mechanical seal:

Q: How is the AS18B mechanical seal installed, and is it suitable for retrofitting existing pumps?

A: The AS18B mechanical seal features an easy-to-install design, compatible with standard round shaft configurations and sizes from 10 mm to 50 mm. Its single-spring, balanced construction makes it ideal for both new equipment and retrofitting into existing pumps without extensive modifications.

Q: What pump types and media are best suited for the AS18B seal?

A: The AS18B seal is designed for use in water pumps, chemical pumps, oil pumps, and centrifugal pumps. It is most effective with clean water, oils, and light chemicals, thanks to its corrosion resistance and broad material compatibility.

Q: When should I choose a balanced mechanical seal like the AS18B for my application?

A: A balanced seal like the AS18B should be selected when dealing with higher pressures (up to 2.5 MPa), aggressive or variable media, or when long service life and reduced wear are critical. Its balanced design helps reduce the load on seal faces, preventing premature failure.

Q: Where is the AS18B mechanical seal manufactured and available for purchase?

A: The AS18B mechanical seal is manufactured in India and is available through authorized manufacturers, retailers, and suppliers across the country.

Q: What is the expected benefit of using high-hardness materials and tight tolerance in the AS18B?

A: Utilizing high-hardness materials such as silicon carbide and maintaining a tight manufacturing tolerance (0.01 mm) ensures exceptional wear resistance, greater sealing reliability, and extended seal life, even under demanding operational conditions.

Q: How does the AS18B mechanical seal handle dynamic misalignment or run-out?

A: The AS18B mechanical seal accommodates dynamic run-out up to 0.1 mm. This capability helps maintain effective sealing performance even when slight shaft misalignments or vibrations are present in the equipment.

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