Iron Valve Body

Iron valve body is the main structural component in industrial valves. These valves control flow in petroleum, chemical, power generation, and water supply pipelines. The valve body must withstand media pressure, temperature, and corrosion. It must also ensure sealing integrity and smooth operation of the valve mechanism. Our iron valve body covers gate valves, globe valves, ball valves, and butterfly valves. We use gray iron and ductile iron materials to meet different operating conditions. Each iron valve body we produce is built for reliable long-term service.

Valve body machining presents serious challenges. The internal cavity is complex. Sealing surfaces demand extremely high precision. Our solution uses 5-axis machining centers with custom fixtures. We complete the internal flow passages, external flanges, and mounting surfaces in one setup. For valve seat sealing surfaces, we use diamond tools for finishing. This achieves surface roughness Ra≤0.8μm and flatness ≤0.02mm. These tolerances ensure perfect contact with the valve disc or ball. Our iron valve body sizes range from DN15 to DN400. This covers most standard valve specifications on the market. Every iron valve body we machine meets these demanding accuracy requirements.

Valve body receives our highest quality attention in both casting and machining. During casting, we control pouring temperature and cooling rate to avoid shrinkage and cracks. During machining, every valve body goes through dimensional inspection and pressure testing. Our HEXAGON CMM checks flange hole position, sealing surface angles, and flow passage dimensions. For pressure testing, we follow API 598 or customer-specified standards. We perform shell strength tests and seat tests at 1.5 times rated pressure with no visible leakage. All inspection data is archived and provided with the shipment. Our iron valve body service is approved by several international valve brands. Our advantage is one-stop supply from casting blank to finished part. Customers provide the drawing and performance requirements. We handle all manufacturing steps. This reduces coordination costs and risks from managing multiple suppliers. Standard valve body orders take about 45 days (including casting). Repeat orders ship in 20 days. We accept small-batch customization starting from 1 piece. Paid samples are available. Mass production starts after first-piece approval.