L serie cryogeen ventiel normally closed

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Technical Data

Function: Normally closed, 2-way, full port.
Pipe sizes: 1/2″ to 3″ NPT (flanged ends available).
Maximum differential pressure: See table (0.7–34.5 bar).
Temperature range:
- Media: up to +204°C.
- Static pressure: up to 20.7 bar (except valves listed for 34.5 bar).
Applications: Hot water, hot gases, cryogenic fluids, and other non-reactive fluids free of sediment.
Construction (wetted parts):
- Body: Cast bronze.
- Piston: Bronze.
- Coil enclosure: Malleable or cast iron, 1/2″ NPS conduit connection.
- Plunger: 430 Stainless Steel.
- Pilot valve: 303 Stainless Steel.
- Bonnet tube: 304 Stainless Steel.
- Springs: Inconel.
- Body seal: Non-asbestos gasket (Teflon® option).
- Orifice seal: Glass-filled Teflon®.
- AC shading coil: Copper.
- Stem pin: Inconel.
- Coil: Encapsulated Class H, 18″ leads.
Coil specifications:
- Power (AC): 18–85 Watt (depending on size).
- Current (AC): 0.4–2.0 A (holding), 1.2–11.0 A (inrush).
- Power (DC): 18–45 Watt (depending on size).
Mounting: Horizontal pipe, solenoid enclosure vertical and on top.
Weight: See table (3.6–26 kg).

Series L Bronze Cryogenic Solenoid Valves (NC)

Magnatrol Type L bronze solenoid valves are normally closed 2-way valves with a straight-through flow path, available in pipe sizes from 1/2“ to 3”. They open when energized and close when de-energized, without requiring a pressure differential to open.

The construction consists of a cast bronze housing, a bronze piston, and stainless steel components.

These valves are suitable for use with liquids and gases, as well as cryogenic media such as liquid oxygen (-183 °C), liquid argon (-186 °C), and liquid nitrogen (-196 °C). They operate from vacuum up to the pressure differential specified in the specification table.

The valves must be mounted horizontally, with the solenoid housing vertical and facing upward. The coils are encapsulated to insulation class H and equipped with 457 mm long connection wires.