HomeInflatable Seals

Inflatable Seals

Fully Molded Construction of the seal ensure a reliable and effective performance even when the two faces are misaligned or not perfectly aligned , saving time and cost of user this feature makes wespo The Most dependable seal in he Industry.
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Introduction

Inflatable Seals Profile

Fully Molded Construction And Fabric Reinforcement Makes Our Inflatable Seals The Most Reliable In The Industry.

100% Leak Proof Inflatable Seals For Every Application Custom Engineered. Precision Built.

Wespo 250 + large selection of Inflatable Seals in stock enable us to offer fast  delivery.and we also produce custom and bespoke profiles, designed and mfg,to meet your unique requirements     

Wespo 500+ ready Inflatable Seals Profile

Why Choose Us For Inflatable Seals

30+ Years Experience

Large Range Of Products

Design guidance for customized seals

Inflatable Seals Classification

Fully Molded Construction And Fabric Reinforcement Makes Our.

  • Non-Reinforced-Inflatable-Seals

    Inflatable Seals

    Wespo Inflatable door seal is elastomeric tube or with reinforced (depend on pressure) custom molded in a round concave, convoluted or flat configuration . it is designed to round out with the introduction of an inflation medium to form a tight barrier between a mounting and striking surface.

    Non-Reinforced-Inflatable-Seals

    Fabric Reinforced Inflatable Seal

    A fabric reinforced seal is a completely molded seal which is built around the same operating principles as a homogeneous inflatable seal. The addition of fabric helps increase the amount of internal pressure by which the seal can operate, where higher pressures are required in a non-enclosed form.

  • Axial

    Axial

    Axially expanding Inflatable Seals have the centerline diameter as the fixed dimension. The Inflatable Seal expands in the perpendicular direction with respect to the diameter. These seals are sometimes also referred to as face seals.

    Radial outward

    Radial-Outward

    Seals expanding radially outward have the Air Inlet Valves(AIV) typically installed into a channel with the inside diameter (ID) as the fixed dimension.

    Radial Inward

    Radial-Inward

    Inflatable seals with small outside diameters may end up wrinkling with this kind of expansion. Seals expanding radially inward have Air Inlet Valves(AIV) typically installed into a channel with the outside diameter (OD).

  • circular1

    Circular

    Inflatable Seals with circular geometry are the most commonly used seals owing to their wide application. Circular Inflatable Seals are the mostly preferred in manhole covers, hopper seals or in industrial machinery like fluidized bed dryers, autoclaves; where in the machines are made in circular dimensions.

    Rectangle2

    Rectangle

    Rectangular Inflatable Seals are very commonly found in door applications like doors for clean rooms, nuclear facility, satellite testing facility, etc. Please note, Western Rubbers’ does not fabricate rectangular seals with tight radiused corners. This is to ensure the seal expansion is not compromised at any point.

    u shaped1

    U Shaped

    U shaped Inflatable Seals are a common configuration in inflatable gate seals. Ends of u-shaped seals are vulcanized and hence cannot inflate. The uninflated portion of the seal depends upon the seal profile and application. Appropriate retention mechanisms for this configuration is available at Western Rubbers.

    strip1

    Strip

    Inflatable seals with straight configurations are most commonly found in clamps and actuators. Straight seals have vulcanized ends that do not expand. The amount of uninflated area in straight seals depends on profile and application. We provide retention mechanisms that work well for straight seals.

Inflatable Seals Applications

Our Usecases in various Industries

Inflatable Seals for Bulk Material Handling

Inflatable Seals for Bulk Material Handling

Bulk Material Handling Inflatable seals have high abrasion resistance to increase performance and seal like especially for highly abrasive applications like Bulk Bag Filling and Drum Filling. Major OEMs have also started to switch from standard inflatable seals to Fabric Reinforced Seals longer cycle like reducing their equipment downtime .

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Inflatable Seals for Critical Doors

Seperate Page ( nuclear power plant, Gas tight doors, Satellite Vibration testing facility, Jet Propulsion Lab Doors.

Inflatable Seals for Vacuum Impregnation

Inflatable Seals for Vaccuum Impregnation Equipments

Automotive and critical engineering castings need a specialised impregnation treatment to ensure no porosi ty or failure of the castings. These opertations are carried out in Vacuum conditions needing Inflatable Seals to ensure air tight sealing

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Fabric Reinforced EPDM Inflatable seal for Nuclear Power Plants

Western Polyrub Inflatable Seals manufactured for the nuclear facility are radiation tested. Designed to be resilient to radiation ensure leak proof sealing in extrement conditions .

Inflatable seal pharma

USP class Vl Inflatable Seal for Pharmaceutical Equipments

Silicone Inflatable Seals for Medical and Phamaceutical application meets US FDA, USP CLASS Vl and EU pharmacopoeia requirements. Some of the applications included Fludised Bed Dryers/processors, Glove box Isolators, Tablet Coater, Clean Room Doors, Laboratory Automation Equipments.

Semi conductor Equipment Inflatable Seal

Semiconductor Equipment Inflatable Seals

Inflatable Seals for the semiconductor industry are designed with fabric reinforced for vey high cycle life. These are specifically packed in clean room enviroments for highly critical semiconductor manufacturing facilities. These inflatable seals are used in Lithography Equipment , Load lock equipments, CVD/ PEVD equipment seal, Fabrication Units, Etching, Deposition and Implantation equipments.

Inflatable Seals for Aerospace Defence

Inflatable Seals for Aerospace and Defence

These custom made large fabric reinforced seals are designed with extreme temperature and moisture condition encountered in aerospace applications. Seals are made from Silicone and Flurosilicone for high durability and performance Some applications include Canopy of figter jets, Door Hanger seals, Passenger aircraft door seal, satellite transportation container seals.

Inflatable Seal For Marine Application

Inflatable Seals for Marine Applications

Inflatable Seals for Marine applications have custom compounds of EPDM and Neoprene keeping in mind the highly Saline and Corrosive enviroment of the Sea. Inflatable Seals are made fo Hatches and Doors, Superyachts, propellor shafts, Sub sea equipments.

DESIGN GUIDANCE

DESIGN GUIDANCE
PURPOSE
Environment
Select rubber compatible with temperature and fluids in contact
Expected Life
Choose between fabric or non-fabric seals based on durability needs
Pressure Differential
Select fabric or non-fabric seals based on pressure conditions
Inflation Gap
Choose the correct seal profile based on the required inflation gap
Equipment Design
Determine corner radius (if applicable) and inflation type (Radial In/Out)
Air Connector
Ensure easy installation and removal of the seal
Retention Mechanism
Secure the seal to prevent displacement during operation
Safety Systems
Prevent over-pressurization to avoid seal failure

You need a custom solution that fits your unique requirements.?

If you are looking for Custom Solutions or simply fill in your details and our representative will get in touch with you to discuss your requirements.

TYPES OF RUBBER FOR INFLATABLE SEALS

MATERIAL
TEMPERATURE RANGE
STRENGHTS
LIMITATIONS
EPDM
-50°C to 150°C
Excellent aging, ozone, weather resistance; Flexible at low temperatures
Poor resistance to petroleum oils, acids, and bases
Neoprene
-40°C to 125°C
Good weather and ozone resistance; Moderate oil resistance; Flame resistant
Not suitable for strong acids, esters, or gasoline
NBR
-40°C to 120°C
High resistance to oils and fuels; Good abrasion resistance
Poor resistance to ozone, sunlight, and weathering
HNBR
-40°C to 165°C
Exceptional oil/fuel resistance; Superior mechanical properties
Higher cost; Limited resistance to strong acids and bases
Natural Rubber (NR)
-50°C to 80°C
High resilience, flexibility; Good adhesion to metals
Poor resistance to oils, ozone, weathering; Limited temperature stability
Silicone (MVQ)
-60°C to 230°C
Excellent temperature resistance; Good weather and UV resistance
Poor resistance to oils, acids; Lower tensile strength
Fluorosilicone (FVMQ)
-60°C to 200°C
Excellent resistance to oils and solvents; Wide temperature range
Higher cost; Lower mechanical properties than silicone
FKM (Viton)
20°C to 200°C
uperior chemical resistance; Excellent high-temp stability
Poor low-temperature performance; Higher cost

FAQ’s

Your Questions Our Answers
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Inflating Radially Inward Seals:
Seals that inflate in the direction of the radius i.e. towards the center

Inflating Radially Outward Seals:
Seals that inflate in the direction of the circumference i.e. away from the center

Inflating Face Seals:
Seals that inflate perpendicular to the seating surface.

1-3 Bar pressure is sufficient for sealing in majority of the inflatable seal sections. Sometimes under critical circumstances seals may be required to withstand higher pressures. These high-pressure seals have to be specially designed and engineered to withstand the pressure. Western Rubbers has designed seals that can withstand pressures up to 30 Bar.

Generally, for nominal pressure applications we suggest customers to avoid fabric reinforced seals so as to avoid high costs. But if your design pressure requirements are higher than 7-8 Bar then we suggest customers to go for fabric reinforced seals for longer life and effective functionality.

Yes! Essentially all Western Polyrub Inflatable seals are custom rubber seal designs. After over 30-years in business, more than 8000 unique products have been developed. Take a look at all of the unique designs at inflatable seals product category.

It’s important to consider the application’s environment: gas temperature, radiation and abrasion exposure when maintaining your inflatable seal. Learn more about these application environmental considerations.

Generally for nominal pressure applications we suggest customers to avoid fabric-reinforced seals so as to avoid high costs. But if your differential pressure requirements are higher than 7-8 Bar then we suggest customers go for fabric.

Generally for nominal pressure applications we suggest customers to avoid fabric reinforced seals so as to avoid high costs. But if your differential pressure requirements are higher than 7-8 Bar then we suggest customers go for fabric.