Metal-to-metal hard seat design is 100% helium leak-tested to 1 x 10–4 mL/s at 200 psi
10,000 psi pressure rating at 200°F (93°C)
Series 400 needle valves are high quality instrument grade valves. They are the right choice when your application calls for positive shut-off or precise flow control. They work effectively with most gases and liquids.