Preparing The Stem Nut; Type "B" Bases: Torque-Only Applications; Standard B4/B4E Base - Flowserve Limitorque Accutronix MX Mounting Instructions

Limitorque actuation systems

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Preparing the Stem Nut

The Accutronix MX has two (2) basic base designs:

• Torque-only base, designated by a "B" prefix

• Thrust-only base, designated by an "A" prefix

The standard MX actuator base is the B4 torque-only and includes a

mounting plate and steel torque nut, which may be machined to fit a

valve or gearbox.

A B4E torque nut can be provided and may be installed to allow for

extended stem acceptance.

B4 base

B4E base

Exploded view of B4/B4E base

Baseplate

Retaining ring

LMENIM2312 • Accutronix MX Quick Mounting Instructions

Flow Control

Limitorque Actuation Systems

Drive sleeve

Accutronix MX

base

Torque nut

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