与大多数Dwyer产品一起使用的各种各样的配件。 Magnehelic®压力表和Capsuhelic®压力表的特殊管道过滤器允许在有灰尘的环境中使用。 Dwyer流量计采用颗粒过滤器，以保持空气清洁。

消声器附件可以很容易地现场安装到任何带有排气的隔膜阀上。 气动排气口位于具有双膜片的隔膜阀和带有整体式螺线管的单元上。 当空气从阀门排出时，消声器可以减少噪音。 双膜片和集成螺线管的阀门有两个排气口，需要一个A-237和一个A-238。   Model    Description
A-270    Brass test port plug with 1/4" NPT process connection.
A-271    Brass test port plug with 1/2" NPT process connection.
A-273    SS test port plug with 1/2" NPT process connection.
A-274    Brass adapter with 1/4" female NPT for use with 1/4" male NPT gage.
A-323    Elbow compression fitting, brass 1/8" NPT to 1/4" metal tubing.
A-324    Compression fitting, brass 1/8" NPT to 1/4" metal tubing.
A-326    Compression fitting, brass 1/8" NPT to 3/8" tubing.
A-327    5/16" nylon tube union.
A-328    1/4" nylon tube union.
A-329    1/8" NPT close coupled street ell, brass.
A-330    1/8" pipe plug, socket hex, plated steel.
A-331    1/8" NPT filter vent plug, nylon and sintered metal.
A-332    Brass adapter, 1/8" female NPT to 1/4" male NPT.
A-333    Bushing, brass, 1/8" to 1/2" NPT.
A-334    Close nipple, brass, 1/8" NPT.
A-336    90° street ell, brass, 1/8" NPT.
A-337    Coupling, brass, 1/8" NPT.
A-338    Servel adapter, brass 3/8" and 5/16" N.F., threads for gas appliances to 1/8" and 3/16" ID rubber or plastic tubing.
A-339    Adapter, brass, 1/8" NPT to 3/16" rubber and 1/8" ID plastic tubing.
A-340    Adapter, nylon, 1/8" NPT to 3/16" ID rubber or 1/4" plastic tubing.
A-342    "T" assembly, plastic, for 3/16" ID rubber or 1/4" plastic tubing.
A-343    "T" assembly, plastic, for 3/16" plastic tubing.
A-343-1    "T" assembly, plastic, for 1/8" ID plastic tubing.
A-344    Terminal tube, brass, 1/4" diameter tube, 8" length.
A-345    Flange for mounting A-301, A-302, A-307, A-308 or 1/8" dia Pitot tubes with compression fitting when interior of duct is not accessible. Aluminum material. With gasket and sheet metal screws.
A-346    "T" compression fitting, brass, 1/4" metal tubing.
A-349    Reducer, brass, 1/4" female NPT to 1/8" male NPT.
A-385    1/2" plastic hole plugs, 20/bag.
A-386    5/16" metal hole plugs, 20/bag.
A-398    Probe extension adapter for Series 640 air velocity transmitter, brass, 1/2" female NPT x 5/16" compression.