Aventics3/2 Manual Shut-Off Valve Module, G1/4 BSPP, Series AS1-BAV Air Preparation

Product Description

What this part is

An AVENTICS Series AS1-BAV shut-off valve, a mechanically (hand) operated 3/2 valve that sits at the inlet of a modular G1/4 air preparation unit. Turned to the closed position it blocks the supply port and vents everything downstream to atmosphere through the exhaust, so cylinders drop and the manifold depressurises before maintenance. It is an air-prep module rather than an inline pipe valve: it clips into the AS1 modular chain with the same connection plate system as the AS1 filter, regulator and lubricator modules.

Decoding the order code

AS1: AVENTICS Series AS1 air preparation, the compact G1/8–G1/4 size class. BAV: shut-off / block-and-bleed valve module. G014: G 1/4 parallel (BSPP) air connection rather than NPT. 3/2: three ports, two positions, being supply, outlet and exhaust. MAN: manual actuation, with no solenoid and no coil.

What these specs mean in practice

Because it is a 3/2 rather than a simple 2/2 ball valve, closing it does two jobs at once: cut supply and dump trapped downstream air. That is what lets it serve as the lockout isolation point on a machine skid. Manual actuation means there is no voltage to match and nothing to wire, a common reason buyers choose the BAV over the electrically operated AS1-SOV in the same envelope.

The connection is G 1/4 BSPP parallel thread. G and NPT are not interchangeable; a G port takes a bonded-seal or O-ring fitting rather than tapered pipe sealant.

Published specifications

Function: 3/2 shut-off valve, block and bleed. Actuation: mechanical / manual. Air connection: G 1/4 (BSPP). Series: AVENTICS AS1 modular air preparation. Media: compressed air. Mounting: modular, in an AS1 unit chain. Origin of design: AVENTICS (Emerson), Germany.

Quantity and configuration

One shut-off valve module. Removed unused from an R480342567 air preparation unit, so it is a new take-out rather than a boxed retail item.

Mounting data

AS1 modules join with series-specific connection plates and clamps. A module pulled from one unit does not always arrive with the mating plate, bracket or clamp from the unit it left. AS1 modules are built in both flow hands, left and right supply.

Interchange guidance

R412014742 is the same valve with the opposite (right-to-left) flow direction, a related version rather than a drop-in substitute for a chain flowing the other way. The AS2 series equivalent (R412006260, AS2-SOV-G014-MAN) is the next size class up and does not fit an AS1 chain.