Configuration Options

Description
JALAPENO-VALVE Jalapeño Vacuum Isolation Valve

Features

Jalapeño Standard & LoPro Valves

Jalapeño Standard Isolation Valves are available in sizes ranging from NW50 - NW100. These valves are suitable for general vacuum isolation where maximum conductance and reliable operation is required. Jalapeño Standard Isolation Valves are also available as two-stage designs with an integrated bypass valve that can be used for soft-pumping.

Jalapeño LoPro Low-profile Isolation Valves are available in sizes ranging from NW25 - NW50. The compact Jalapeño LoPro design, like our unheated LoPro Valves, provides 1,000,000 cycle life operation, a more compact form factor, and a simplified disassembly process for ease of service. Both the Jalapeño Standard and Jalapeño LoPro valves are available in NW50 size.

Jalapeño Standard Valve
Jalapeño LoPro Valve

For applications where high cycle life is desired Jalapeño LoPro is recommended. For all other applications, Jalapeño Standard is a suitable option.

Jalapeño Thermal Management System

The Jalapeño Vacuum Valves are heated with MKS' Series 49UL Thermal Management System. The heater has a set point temperature of 170°C and typically reaches set point temperature in less than 30 minutes. The heaters can be daisy-chained with integral locking connectors and are available in either polyimide or PTFE-woven materials. The heaters are wired in parallel and independently controlled. A power cord is required for every 10 amps drawn by a chain of heaters.

The S49UL Thermal Management System provides a complete, integrated Thermal Heater Solution for multiple and custom applications.

Specifications

Jalapeño Standard & LoPro Valve Specifications

Main Valve

ByPass Valve

Vacuum Range Atmosphere to below 10-9 Torr Atmosphere to below 10-9 Torr
Helium Leak Rate Less than 1.0 x 10-9 std cc/sec Less than 1.0 x 10-9 std cc/sec
Cylinder Air Pressure 60-100 psig 60-120 psig
Limit Switch Rating, Single Pole, Double Through 5A, 250VAC/5A, 30VDC n/a
Pneumatic Cylinder Displacement Volume n/a 0.25 in.3 (4.1 cm3)
Approximate Pneumatic Closing Time n/a 100 msec
Blow-By Pressure n/a 47 psia
Maximum Internal Spring Closing Pressure n/a 40 psia

Jalapeño Standard Valve Specifications

Port Size

Actuator Cylinder Volume

Actuation Opening/Closing Time

Blow By Pressure

Maximium Internal Spring Closing Pressure

2.0 in. (NW50) 13.3 in.3(218 cm3) 1,000/2,000 msec 45 psia 38 psia
3.0 in. (NW80) 27.6 in.3(453 cm3) 2,000/2,000 msec 38 psia 40 psia
4.0 in. (NW100) 27.6 in.3(453 cm3) 2,000/2,000 msec 30 psia 30 psia

Jalapeño LoPro Valve Specifications

Port Size

Actuator Cylinder Volume

Actuation Opening/Closing Time at 100 psi

Blow By Pressure

Maximium Internal Spring Closing Pressure

1.0 in. (NW25) 1.2 in.3(20 cm3) 40/90 msec 80 psia 43 psia
1.5 in. (NW40) 2.2 in.3(36 cm3) 60/90 msec 50 psia 60 psia
2.0 in. (NW50) 6.4 in.3(105 cm3) 160/220 msec 45 psia 38 psia

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