Import Biogas Holder — Buy in wholesale FOB from Supplier in China

The Shijiazhuang Banghong Technology Co., Ltd. biogas holder is a double-membrane gas storage system designed for anaerobic digestion and biogas recovery applications. It consists of three main components, an external membrane, an inner membrane, and a bottom membrane, all engineered to maintain positive pressure and gas tightness under variable load conditions. The external membrane sustains structural shape and protects against wind, storm, and snow loads, while the inner membrane floats according to the biogas filling level to provide dynamic storage capacity. Membrane tensile strength ranges from 4,000 N/5cm to 9,000 N/5cm, selected according to site-specific wind and snow load calculations. Stainless steel rails and Hilti anchors are supplied for rapid field installation.

The membranes are constructed from base fabrics with specialised PVC/PVDF coating incorporating flame retardant, fungicide, and UV-protection additives. The external membrane is specified for high tensile strength and self-cleaning surface properties. The inner and bottom membranes are formulated for biogas tightness and chemical inertness to hydrogen sulphide (H2S) and methane (CH4), the principal reactive components in raw biogas. An overpressure protection device, a hydraulic safety valve, is integrated to prevent emergency pressure build-up. For cold climate operation, antifreeze can be added to the water seal system to maintain functionality below freezing. These material choices reflect standard practice in engineered membrane gas storage, where PVC/PVDF coated polyester is the dominant construction.

This biogas holder is suited to farm-scale digesters, municipal wastewater treatment plants, food and beverage effluent recovery, and industrial organic waste processing facilities. Buyers include biogas project developers, anaerobic digestion engineering firms, and agricultural cooperatives seeking to capture methane for electricity generation or biomethane upgrading. The modular membrane design allows installation on new or retrofit concrete foundations. Shijiazhuang Banghong Technology Co., Ltd. is located at No618 Peace Road, Shijiazhuang, Hebei Province, China. The listing carries a harbor trust tier with no recorded response rate or average response time, so direct contact is essential to confirm lead times, installation support, and after-sales service availability.

Shijiazhuang Banghong Technology Co., Ltd. is headquartered at No618 Peace Road, Shijiazhuang, Hebei Province, 050000, China. The company operates within the industrial gas equipment sector, specifically supplying membrane-based biogas storage systems. The listing is classified under a harbor trust tier, which indicates a baseline verification status on the platform. No response rate or average response time data is recorded, so buyers should anticipate potential delays in initial communication and plan outreach accordingly.

The supplier profile does not disclose manufacturing capacity, workforce size, annual revenue, export history, or specific client references. No certifications such as ISO 9001, CE marking for pressure equipment, or ATEX compliance are stated in the available data. Buyers should request documentation of quality management systems, membrane material test reports, and previous project installations before committing to an order. The physical address in Shijiazhuang, a major industrial city in northern China with established steel and machinery manufacturing clusters, provides a plausible manufacturing base, but this should be verified through direct due diligence including factory audit or third-party inspection.