About Shandong Dofun Refrigeration Technology Co.,Ltd. - Industrial Valves & Gauges Supplier in China

China, specifically the Shandong province, hosts Shandong Dofun Refrigeration Technology Co.,Ltd., which currently lists five distinct industrial refrigeration valve products. The catalogue includes a Fluorine valve, an Ammonia valve, a Freon valve, a Cold Storage Compressor valve, and a Cooling System Ammonia valve, all classified under the broader category of Industrial Valves & Gauges. Each entry is recorded without additional HS‑code data, focusing on valve function rather than ancillary hardware. The supplier’s portfolio is limited to valve solutions for refrigeration cycles, indicating a niche product focus within the industrial cooling sector. Geographic references are confined to the supplier’s Chinese origin, with no explicit export destinations disclosed in the source facts.

Product Range and Specialties of Shandong Dofun Refrigeration Technology Co.,Ltd.

The listed products cover three refrigerants - fluorine, ammonia, and Freon - plus two general‑purpose refrigeration valves for cold‑storage compressors and cooling systems. In the industrial refrigeration market, such valves are typically manufactured from stainless steel (often grades 304 or 316) or carbon steel with protective coatings, and they are designed to handle pressures from 10 bar up to 30 bar depending on the application. Standard specifications include connection sizes ranging from DN15 to DN100, temperature tolerances between - 40 °C and +150 °C, and compliance with ASME B16.34 for pressure‑tightness and material strength. Buyers often look for valves that meet CE marking and ISO 9001 quality‑management requirements, as these indicate conformity with European and international safety standards. The catalogue’s focus on refrigeration‑specific valve types aligns with common industry demand for reliable flow control in cascade, ammonia‑based, and hydro‑fluorocarbon systems.

Trade and Export Information - Shandong Dofun Refrigeration Technology Co.,Ltd.

China ranks among the world’s largest exporters of industrial refrigeration components, with valves typically classified under HS chapter 84, heading 8481 for “valves and fittings.” Major import regions for these goods include Southeast Asia, the Middle East, Europe, and North America, where food‑processing plants, cold‑storage facilities, and HVAC installers source such hardware. Buyers usually require CE conformity, ISO 9001 certification, and often request test reports confirming pressure ratings and leak‑tight performance. Standard export packaging consists of wooden crates or reinforced corrugated boxes, sized to fit 20‑ft or 40‑ft containers, and shipments are commonly arranged under FOB or CIF Incoterms. Chinese customs inspections focus on accurate HS‑code declaration, proper labeling, and verification of any declared certifications, making pre‑shipment documentation essential for smooth clearance.

Sourcing from Shandong Dofun Refrigeration Technology Co.,Ltd. - Buyer Guidance

When evaluating Shandong Dofun’s refrigeration valves, request detailed product data sheets that list pressure class (e.g., PN 10, PN 16), material grade, connection dimensions, and operating temperature range. Ask for mill‑test reports or material certificates to confirm stainless‑steel composition, as well as CE and ISO 9001 certificates that demonstrate compliance with European and international standards. It is prudent to obtain a third‑party pressure‑test report or hydrostatic test result for each valve model before finalizing a purchase. Verify the supplier’s business license and, if possible, arrange a factory audit or virtual inspection to confirm manufacturing capabilities. Typical minimum order quantities for industrial valves range from 500 to 1 000 units, with lead times of four to six weeks after order confirmation, subject to material availability.

What refrigerants are covered by the valves listed by Shandong Dofun?

The catalogue includes valves designed for fluorine, ammonia, and Freon refrigerants, plus two generic refrigeration valve types used in cold‑storage compressors and cooling‑system loops.

Which material standards are common for these refrigeration valves?

Industrial refrigeration valves are usually fabricated from stainless‑steel grades 304/316 or carbon steel with corrosion‑resistant coating, adhering to ASME B16.34 pressure‑class requirements.

What certifications should a buyer request for these valves?

Buyers should ask for CE marking, ISO 9001 quality‑management certification, and any relevant mill‑test reports that verify material composition and pressure‑rating compliance.

Are there typical pressure ratings for the listed valve types?

Typical pressure ratings for refrigeration valves range from 10 bar (PN 10) to 30 bar (PN 30), depending on the specific refrigerant and application.

What are the usual packaging and shipping formats?

Valves are normally packed in reinforced wooden crates or bulk‑filled corrugated boxes, loaded into 20‑ft or 40‑ft containers, and shipped under FOB or CIF terms.

What minimum order quantities and lead times can be expected?

Minimum order quantities generally start at 500 units per valve model, with lead times of four to six weeks after order confirmation, subject to material stock.

How can a buyer obtain a sample before placing a larger order?

Buyers can request a single unit sample together with the product data sheet and test report; sample shipping follows the same Incoterm rules as bulk orders.

What documentation is needed for customs clearance of these valves?

Customs typically require a commercial invoice, packing list, proper HS‑code declaration (chapter 84, heading 8481), and any certification copies such as CE or ISO 9001.