China Energy efficient solenoid valves Manufacturer, Supplier, Factory

Qimao Metal Manufacturer Flanged Hollow Sleeve With Through Hole For Bolted Flange Joints is designed specifically for bolted flange joints in industrial piping and mechanical systems. The through-hole allows precise bolt alignment, while the flanged ends distribute clamping force evenly. Commonly used in oil & gas, water treatment, and heavy machinery. A practical alternative to solid spacers or washers. Simple to install but critical for joint integrity under vibration or thermal expansion.

Qimao metal manufacturer is a professional supplier of precision metal hardware. We specialize in manufacturing high-quality Door and Window Roller Track Components and Hardware via cold heading and stamping processes. Our products feature excellent wear resistance and corrosion protection, supporting customized materials and finishes. Welcome global buyers, contractors and OEM partners for bulk orders and long-term cooperation.

A Normally closed solenoid valve is an essential device used for fluid control in a wide range of industries. In its normal, de - energized state, the valve remains closed, preventing fluid flow. When an electrical current is applied to the solenoid coil, an electromagnetic force is generated, which opens the valve and allows fluid to pass through. It features quick response, high reliability, and is suitable for different media.

This High Strength Worm Shaft for Worm Gear Speed Reducers from Qimao Metal Manufacturer is built differently. We start with 42CrMo4 or 20CrMnTi alloy steel, then carburize or induction harden it to 58–62 HRC on the tooth flanks. The core stays softer to absorb impacts. We also grind the thread profile after hardening, not before. That gives you a smooth surface finish and accurate lead angle.

Low - noise solenoid valve is an excellent choice for applications requiring quiet fluid control. It uses a unique design to minimize noise during operation, while being made of durable materials for long - term use. It can precisely control fluid flow and is suitable for both domestic and industrial scenarios.

Qimao Metal Manufacturer Industrial Equipment Used Double End Threaded Bolt Stud is built for industrial equipment that sees heavy vibration, thermal cycling, and constant load stress. Unlike standard studs that loosen over time, this one uses a precise thread fit and heat treated alloy steel to hold torque longer. We designed it for flanges, valve bodies, pump casings, and gearbox splits where a standard bolt just won't work. The blank center section gives you room for alignment while both threaded ends accept standard nuts or tapped housings. If your maintenance team is tired of replacing broken or stripped studs every shutdown, this one lasts longer and takes more abuse before it fails.