Profile Engineered for Your EquipmentRound, D-shape, wedge, rectangular, trapezoid or a profile of your own design — the cross-section is matched to your groove and sealing pressure.	Material Matched to Your MediaSilicone, reinforced silicone and food-contact grades available; special compounds can be discussed with our engineers for demanding media.
Wide Size & Shape RangeFrom small inspection doors to large chamber doors — straight runs, curved paths or complete closed loops, made to your dimensions.	Tough in Harsh ConditionsResistant to heat, cold, ozone, UV and weathering; stable elasticity for long service life across frequent open/close cycles.
Fittings Built to Your SystemOne-way valves, quick couplings or custom inflation ports — installed where your pneumatic system needs them.	Complete Solution SupportFrom design consultation and sampling to installation guidance — we support you through the whole project, not just the product.

Pressure Vessels & Autoclaves	Sterilizers & Isolators	Blast Rooms & Sandblasting Equipment	Spray Booths & Painting Lines
Drying Ovens & Curing Chambers	Tanks, Silos & Hoppers	Ducting & Airtightness Test Systems	Cleanrooms & HVAC
Food, Beverage & Dairy Processing	Pharmaceutical & Biotech Equipment	Marine Hatches & Watertight Doors	Power, Energy & Industrial Plants

Parameter	Customizable Options
Cross-section profile	Round, D-shape, wedge, rectangular, trapezoid or custom profile per your drawing
Dimensions	ID/OD, length, closed-loop circumference — straight or curved, per your opening
Material	Silicone, reinforced silicone, food-contact grades; special compounds on request
Hardness	Typically 30–80 Shore A, tuned to your sealing pressure and groove design
Operating temperature	Wide range — confirm the right material grade with our engineers for your media
Inflation pressure	Designed per application — provide your working pressure and sealing requirements
Inflation fittings	One-way valve, quick coupling or custom port — position as your system requires
End treatment	Open ends, molded ends, closed loop or adhesive joint — per installation method
Color	Black, white, red, blue, transparent or custom color

1. Describe your application Media, working pressure, temperature, opening size and how the closure is operated.	2. Share drawings or sample CAD/PDF drawings, groove details, photos or an existing sample we can reference.
3. Get an engineering proposal Recommended profile, material, hardness and fitting — confirmed before production.	4. Sample, test & refine Sampling and testing as required, with adjustments until the seal performs as needed.
5. Produce with full QC Dimensional checks and airtightness testing before shipment.	6. Support after delivery Installation guidance and responsive technical support throughout service life.

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