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ACCESSORIES - VALVES AND CONNECTORS
A-310A/A-310B ++ A-311 ++ A-312 ++
Miscellaneous Accessories
A-5000 A-355 A-365
A-315 A-316 A-318A-317
to www.P65Warnings.ca.gov.
MODEL CHART
Instrument valves for permanent installation. They mount in part A-316, A-317,
type C manometer connections or Magnehelic
or 1/8˝ pipe.
Model Description
A-310A
A-310B
A-311
A-312
A-5003-5
A-5004-4
A-355
A-365
MODEL CHART
Gage Connectors for Manometers. Molded nylon construction, threaded .786 x 27
N.S., with O-ring seal.
Model Description
A-315
A-316
A-317
A-318
A-319
A-321
A-322
3-way vent valve, plastic, 1/8˝ NPT to 1/4˝ metal tubing. Positions are: (1)
Line: Gage connected to pressure source. (2) Off: Both gage and connection
to pressure source closed. (3) Vent: Gage vented to atmosphere and
connection to pressure source closed. 80 psi rating. Replaces former model
A310 (brass)
Same as A-310A but with 10 psi rating
Shut off valve, brass, 1/8˝ NPT to 1/8˝ NPT
Shut off valve, brass, 1/8˝ NPT to 1/4˝ metal tubing
PVC 1/8˝ male NPT inlet x 1/8˝ female NPT outlet x 1/8˝ female NPT outlet
(125 psi maximum)
PVC 1/4˝ female NPT inlet x 1/4˝ female NPT outlet x 1/4˝ female NPT outlet
(125 psi maximum)
Porting valve, acrylic plastic, 1/8˝ NPT inserts. Used for convenient
indication of pressure at two points with a single gage
Dual porting valve, acrylic plastic, 1/8˝ NPT ttings. For monitoring three
pressures, two at a time, with one gage
Gage connector, shut off type, for 3/16˝ rubber tubing
Gage connector, bushing, 1/8˝ pipe thread opening
Gage connector, 1/8˝ pipe thread opening, less OD thd., for slip t in 3/4˝
dia. opening in 250 series A.F. gages
Gage connector 1/4˝ pipe thread opening
Flexible red P.V.C. connector, 3/16˝ ID rubber tubing to 1/4˝ ID plastic tube
for 1221,1222 and 1227 manometers
Brass safety relief valve protects Magnehelic
over pressure due to regulator failure etc. Opens at 10 psi. Mounts in tee
tting in sensing line or in unused gage port with addition of A-349 reducer.
1/4˝ male NPT (Use two for D.P. application)
Gage connector for 1/4˝ tubing. Slip ts in 3/4˝ opening in 250 series A.F.
gages (compression nut and ferrule not included)
®
gage and connect to metal tubing
®
or Photohelic® gage against
A-319 A-321 ++ A-322
454
DWYER INSTRUMENTS, LLC | dwyer-inst.com
++USA: California Proposition 65
WARNING: This product can expose you to chemicals including Lead, which is known to the State
of California to cause cancer and birth defects or other reproductive harm. For more information go
to www.P65Warnings.ca.gov.
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