Alf Pump Seal Double Face FT 186 

PBT.D051/PBT.D050

Mechanical Seal For Vogelsang Lope VX-136/VX-186 Pump

Operating Limits

Temperature:  -15--180℃ Speed:15m/s

       Pressure:  2.5Mpa 

                       Material:  Seal Ring:Car,Sic,Ssic,TC            Secondary seal:  NBR,Viton,EPDM,Kalrez

Spring and metal parts:  304,316,HAST.C

Possible Application: VX100 VX136-70Q VX136-105Q VX136-140Q VX136-210Q VX186-130Q VX186-260Q VX186-390Q VX136-210Q VX186-130QD VX186-260QD VX186-390QD VX186-520QD FX-Series R-Series

Performance Capabilities:

Temperature :-20℃ to 200℃, dependent on the elastomer

       Pressure: Up to 25 bar

          Speed:  Up to 20 m/s

End play/axial float allowance :±0.1mm

        Face :  Carbon, SiC

          Seat:  SUS304,SUS316, SIC, TC

 Elastomer:  NBR, EPDM, FKM etc.

       Spring:      SS304, SS316

Metal parts: SS304, SS316

Idividual Packing

Using foam and plastic paper wrapped, then put one piece of seal in one box,finally 

What Is a Mechanical Seal?

A mechanical seal is a device that helps prevent fluid leakage between a rotating shaft and a 

stationary housing in equipment such as pumps and compressors. It consists of two key components — a rotating face and a stationary face — that work together under spring tension to maintain a tight, leak-proof seal.

Mechanical seals are a more efficient, reliable, and maintenance-free solution compared to traditional packing or gland seals.

Types of Mechanical Seals We Offer

At FIT SEALS , we provide a wide range of mechanical seals designed for different industrial 

applications:

Single Mechanical Seals

Ideal for general-purpose and moderate-pressure applications It is easy to install and maintain

Double Mechanical Seals

Used for handling hazardous, abrasive, or toxic fluids

Offers superior sealing protection and safety

Cartridge Mechanical Seals

Pre-assembled units for quick installation

Reduces the risk of installation errors

Metal Bellow Seals

Suitable for high-temperature and corrosive applications

No secondary elastomer O-rings required

Split Mechanical Seals

Ideal for large or difficult-to-disassemble machinery

Reduces downtime and maintenance costs

Benefits of Using Mechanical Seals

Leak-free performance and longer service life

Reduced maintenance and downtime

Lower friction and energy loss

Handles high pressure, temperature, and speed

Suitable for a wide range of fluids and environments

Improves equipment efficiency and safety

Our mechanical seals are designed to maintain consistent sealing performance in both static and dynamic operations.

Our large range of mechanical seals fits common industrial seal chambers without changing existing housings or gland plates, and they're ready to ship from stock.

Conical spring seals with O-ring mount

Elastomer (rubber) bellows seals

Parallel-spring diaphragm seals

Balanced diaphragm seals

Parallel-spring O-ring mounted seals

Multiple-spring seals

Wave-spring seals

Water pump seals

OEM replacement seals

Stationary seals and clamp-ring seals

High-Quality Mechanical Seals Supplier in China

At FIT SEALS, we supply premium-quality mechanical seals designed to prevent leakage and ensure reliable operation of pumps, compressors, and rotating equipment. As a leading mechanical seal supplier in China, we cater to various industries including oil & gas, chemical, water treatment, food processing, and pharmaceuticals.

Our seals are engineered for durability, precision, and performance — delivering a long-lasting seal even in extreme temperature and pressure conditions.

Applications of Mechanical Seals

FITSEALS's mechanical seals are widely used across multiple industrial sectors:

Oil & Gas Processing Plants

Chemical and Petrochemical Industries

Pharmaceutical Manufacturing

Water & Wastewater Treatment

Power Generation Plants

Food & Beverage Production

Marine and HVAC Systems

Whether you require seals for high-pressure pumps or corrosive chemical systems, FIT SEALS provides the right solution for your needs.

Why Choose FIT SEALS for Mechanical Seals ?

FITSEALS is most reliable sources for industrial mechanical seals. Our commitment to quality, 

precision, and customer satisfaction makes us the preferred partner for many leading companies in China

Why clients trust FIT SEALS:

Wide range of seal types and materials (Carbon, Ceramic, Silicon Carbide, Tungsten Carbide)

Custom and standard mechanical seals available

Fast delivery and competitive pricing

Technical support and installation guidance

Proven track record in industrial sealing

We ensure every mechanical seal meets international performance and durability standards.