For dental clinics and laboratories maintaining in-house sterilization, the closed solenoid valve is a critical component in autoclave fluid circuits. Our B‑grade selection provides a practical alternative to top‑tier models without sacrificing core reliability. This unit matches the installation footprint of a Dental sterilizer NC electromagnetic control valve and operates on the same normally closed principle. Like a genuine Normally closed magnetic valve for oral steam sterilizer, it blocks water or steam flow until the coil is energized, preventing unintended discharge during power interruptions. The assembly is fully compatible with standard manifolds and can directly replace an Oral autoclave normally shut electromagnetic fluid valve in most benchtop sterilizers. It also mirrors the sealing performance of a Dentistry sterilization machine closed magnetic switching valve, giving technicians a dependable fluid gate that withstands daily heat cycles and frequent actuation.
The B-grade dental disinfection equipment closed solenoid valve is engineered for workshops that demand functional integrity while managing operating costs. Every unit undergoes a multipoint inspection covering coil resistance, seat leakage, and response time before it leaves our warehouse. The valve body is machined from lead‑free brass with a nickel‑plated finish to resist corrosion in humid sterilization rooms. Inside, a food‑grade EPDM diaphragm and a precision‑lapped stainless steel plunger create a bubble‑tight seal rated for thousands of cycles. Though classified as B‑grade due to minor cosmetic blemishes or batch overstock, the electromagnetic performance remains indistinguishable from premium lines. This means your autoclave maintains correct chamber pressurization, and you avoid the downtime that comes with sudden solenoid failure.
Key Performance Features| Parameter | Value |
|---|---|
| Model code | B‑NCV‑22D |
| Valve type | 2‑way, direct‑acting, normally closed |
| Body material | Nickel‑plated brass CW617N |
| Seal material | EPDM (peroxide‑cured) |
| Coil voltage | 12V DC / 24V DC / 110V AC 50/60Hz (selectable) |
| Power consumption | 8 W (DC) / 12 VA (AC) |
| Operating pressure | 0 – 1.0 MPa (0 – 145 psi) |
| Fluid temperature range | 5°C – 130°C (41°F – 266°F) |
| Ambient temperature | -10°C – 55°C (14°F – 131°F) |
| Response time (open/close) | ≤ 120 ms / ≤ 80 ms |
| Lifetime rating | ≥ 500,000 cycles |
| Ingress protection | IP65 (coil enclosure) |
| Connection ports | G1/4 female (standard), adapters for ¼″ & ⅜″ OD tube |
| Weight | 0.32 kg (0.7 lb) |
Installation is straightforward on any dental sterilizer using a service port for the water inlet or steam generator feed. The coil can be rotated 360° after loosening the retaining nut, letting you orient the cable exit away from heat sources. Because the valve remains closed when idle, it helps maintain vacuum integrity during the drying phase of an autoclave cycle. It also prevents accidental flooding if a water supply line remains pressurized overnight. All B‑grade closed solenoid valves are individually bagged with a silica gel desiccant and shipped with a test report showing actual pull‑in and drop‑out voltages measured during quality control. This data allows your biomedical technician to verify compatibility with the sterilizer’s control board before installation, reducing guesswork and returns. With a standard footprint and widely supported electrical characteristics, the B‑grade dental disinfection equipment closed solenoid valve integrates into most oral autoclave platforms without modification, making it a sensible stock item for repair depots and in‑house maintenance teams.