ACCESSORIES - VALVES & CONNECTORS
A-310A/A-310B ++ A-311 ++ A-312 ++
Miscellaneous Accessories
A-5000 A-355 A-365
A-315 A-316 A-318A-317
A-319 A-321 ++ A-322
454
DWYER INSTRUMENTS, INC.
MODEL CHART
Instrument valves for permanent installation. They mount in part A-316, A-317,
type C manometer connections or Magnehelic
tubing or 1/8˝ pipe.
Model Description
A-310A
A-310B
A-311
A-312
A-5001-1
A-5002-2
A-5003-3
A-5003-5
A-5004-4
A-5004-6
A-5005-3
A-5006-4
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˝ hose barb inlet x 1/8˝ hose barb outlet x 1/8˝ hose barb outlet
(125 psi maximum)
PVC 1/4˝ hose barb inlet x 1/4˝ hose barb outlet x 1/4˝ hose barb outlet
(125 psi maximum)
PVC 1/8˝ female NPT inlet x 1/8˝ female NPT outlet x 1/8˝ female NPT
outlet (125 psi maximum)
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)
PVC 1/4˝ male NPT inlet x 1/4˝ female NPT outlet x 1/4˝ female NPT
outlet (125 psi maximum)
PVC 1/8˝ female NPT inlet x 1/8˝ male NPT outlet x 1/8˝ male NPT outlet
(125 psi maximum)
PVC 1/4˝ female NPT inlet x 1/4˝ male NPT outlet x 1/4˝ male 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
against 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)
++USA: California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
®
gage and connect to metal
®
or Photohelic® gage