Neles Easyflow™ JA

Resilient seated butterfly valve - Premium performance product

Neles Easyflow JA series concentric disc resilient seated butterfly valves are suitable for a wide range of applications in manual or automated on/off through throttling control services. Although compact and lightweight, the JA series is designed to be rugged, reliable, and to comply with a variety of global industry standards.

Features

ISO 5211 mounting pad for direct mounting of handle, gear operator, manual override, or actuator
An extremely tight fit square drive between the stem and disc provides accurate and repeatable shut-off and control
Bonded elastomeric cartridge seal is the most rugged method of construction available, providing consistent operating torque, maximum cycle life, and higher flow rates in control. Avoids pinching and tearing that can occur with non-bonded seal designs.
Bonded elastomeric cartridge seal is easy to remove and replace if maintenance is ever needed
Disc is precision machined with a spherical disc edge to provide long cycle life and consistent torque
Two-piece stem arrangement for highest Cv and maximum flow
Top and bottom stems have anti blow-out protection that also prevents lifting or pushing of the disc during actuator installation or removal
Lower stem includes groove for easy servicing
The burnished stem is supported by self lubricating polymer bearings to minimize deflection and provide smooth operation and long life
Every valve is factory tested, serialised & quality tagged prior to shipment

Applications

Water and waste water
Sewage treatment
Mining and other slurries
Fuel oil and gas
Cooling or chilled water circuits
Desalination
HVAC
Cement and other fine powders
Mild corrosive chemicals and petrochemicals

Nominal diameter: DN50 – DN600 (NPS 2 – 24)
Pressure rating: PN10, PN16, Class 150
Flange accommodation: EN1092 (PN10, PN16) / ASME B16.5 Class 150 / JIS 10K,16K / Refer to flange table for availability by size
Face to face dimension: Per API 609 Table 2 for Category A / BS EN 558 Table 2 Series 20 valves
Vacuum rating: 29.91 inch Hg gauge (759.98 mm Hg gauge or 2x10-2 Torr or 4x10-4 psia or 99.99% vacuum)
Leakage: No visible leakage
Standards followed: ISO 5211, API 598, API 609, ASME B16.5, BS EN 593 IS 13095
Testing: API 598, EN 12266-1