Technical Data Sheet – Rubber Bellow Flange Type
|
Parameter |
Specification |
|
Rubber Material |
FVMQ or VMQ |
|
Operating Temperature Range |
-50°C to +220°C (depending on material) |
|
Bellows Function |
Axial, radial, angular compensation |
|
Flange Bonding |
Integral vulcanization, strong bond |
|
Surface Requirements |
Smooth and flat, no missing rubber, no bubbles |
|
Inspection Requirement |
100% Factory Inspection |
Absorbing Thermal Expansion and Vibration
The Rubber Bellow Flange Type is a flexible connection component commonly used in exhaust systems, intake manifolds, and turbocharger piping. It compensates for displacement caused by thermal expansion and engine vibration. It also reduces vibration and noise. The bellows structure provides flexibility in axial, radial, and angular directions. It effectively absorbs thermal expansion and installation misalignment. This bellow determines whether the exhaust system has "excessive thermal stress," whether pipe joints "fatigue and crack," and whether engine vibration is "transmitted to the frame." In simple terms, it keeps exhaust pipes "unaffected by thermal expansion" and keeps vibration from "spreading."
Anhui Denaifu has over 20 years of manufacturing experience with Rubber Bellow Flange Type. Our 127,000+ square meter facility employs over 80 people. Our product covers 80% of vehicle brands in China through tier-1 suppliers.

High-Temperature Fluorosilicone Material
Our Rubber Bellow Flange Type uses high-temperature FVMQ or VMQ material. The flange ends are integrally vulcanized and bonded to metal connectors. The bond is strong and reliable. The bellows wall thickness is uniform. The crest and trough dimensions are precise. Fatigue life meets vehicle durability requirements. The surface is smooth and flat with no missing rubber, bubbles, or impurities. Flash is thoroughly cleaned.
We have an independent R&D team and dedicated quality staff. We strictly follow IATF16949. Monthly capacity exceeds 4 million pieces. Every batch is 100% inspected before shipping. We also accept third-party inspections.

Custom Production and Payment
Anhui Denaifu supports custom production based on customer drawings. Standard product delivery takes 30 working days. Custom products take 60 to 90 working days. The minimum order is RMB 50,000.
Standard product payment: 70% prepayment starts production, 20% when goods reach the port, and 10% as quality guarantee, payable within 30 days after receipt. Custom product payment terms are negotiable.

IATF16949 and Support
We hold IATF16949, ISO14001, and 14 utility model patents. Pre-sales: we handle development review and solution design. In-sales: we control quality and monitor capacity. After-sales: dedicated staff handle technical quality feedback. If goods are damaged in transit, we replace them at no cost. Warranty terms follow customer requirements.
Hot Tags: rubber bellow flange type, China rubber bellow flange type manufacturers, suppliers, factory

