RKG-S & RKG-G Series – Carbon Steel Welding Flanges and Oil-Resistant Gaskets for Tank Truck Manholes

RKG-S & RKG-G Series – Carbon Steel Welding Flanges and Oil-Resistant Gaskets for Tank Truck Manholes

The RKG-S and RKG-G series provide essential support components for petroleum tank truck manholes. Designed to ensure a secure and leak-proof connection between manhole covers and tank bodies, these accessories play a critical role in maintaining safety, preventing leaks, and supporting ventilation systems during fuel transport.

Globally, these manhole cover components are referred to in various ways: in Germany as “Tankdeckel-Schweißflansch und Dichtung”, in France as “Bride de trappe de réservoir et joint”, in Italy as “Flangia di saldatura e guarnizione per coperchio serbatoio”, in Spain as “Brida de soldadura y junta para tapa de registro”, in the Netherlands as “Lasflens en pakking voor tankluik”, and in the UK as “Tank Manhole Welding Flange and Gasket”. In Asia and South America, they are commonly called “manhole flange assembly,” “tank cover gasket kit,” or “petroleum manhole sealing set.” Despite the different names, their primary function is universal: ensuring tight sealing, structural stability, and long-term durability for manhole covers.

Key Features
RKG-S Series Welding Flange Connector: Provides a secure welded connection for manhole covers.
Available in carbon steel, stainless steel, or aluminum for various operational needs.
High-strength construction ensures resistance to deformation under working pressure.
Compatible with standard petroleum tank manhole diameters: 460 mm, 560 mm, and 580 mm.
Working pressure: 0.6 MPa; temperature range: -20°C to +50°C.

RKG-G Series Oil-Resistant Gasket:
Ensures a tight seal between the manhole cover and flange.
Materials include Buna-N or cork rubber for optimal chemical and fuel resistance.
Designed for long-term durability under extreme temperature fluctuations.
Supports bolt configurations corresponding to standard tank diameters (460 mm, 560 mm, 580 mm).
Working pressure: 0.6 MPa; temperature range: -20°C to +50°C.
Universal Compatibility: Both series are designed to work together or independently as replacement parts for petroleum manhole covers, allowing for easy maintenance and installation.

Applications
Petroleum tank trucks for fuel and diesel transport
Chemical and hazardous liquid tankers require tight sealing
Water tankers or industrial fluid transport vehicles
International tank truck manhole systems require reliable flange and gasket solutions

The RKG-S welding flange and RKG-G oil-resistant gasket series deliver reliable performance, leak prevention, and international standard compliance, making them trusted accessories for tank truck manholes worldwide.