Stainless Steel Static Pressure Tips & Accessories

These sensors are for use with Manometers, Magnehelic® Gages, Pressure Switches and other Controllers to pick up or sense static pressure drop across air filters and cooling coils, blower input and discharge pressures, etc. The angled tips shown have 4" insertion depth. Each has four radially drilled .040" sensing holes. All except Model A-303 mount in 3/8" hole in duct. For portable use, a magnet holds No. A-303 in place. No. A-305 is used where a very low actuation or sensing point is required on a pressure switch or gage or where response time is critical. No. A-307 and A-308 are suitable for use in low velocity systems or where the need for accuracy is less critical.

Models & Ordering

Model Number Description Usually Ships Price Order
A-301 Static pressure tip, for 1/4" metal tubing connection. Same Day $9.90 Order
A-301-A Static pressure tip, for 1/4" metal tubing connection with 6" insertion depth. Same Day $15.00 Order
A-301-B Static pressure tip, for 1/4" metal tubing connection with 8" insertion depth. Same Day $17.25 Order
A-301-C Static pressure tip, for 1/4" metal tubing connection with 12" insertion depth. Same Day $17.75 Order
A-301-SS Static pressure tip, for 1/4" metal tubing connection in stainless steel. Same Day $60.50 Order
A-302 Static pressure tip, for 3/16" and 1/8" ID plastic or rubber tubing. Same Day $9.10 Order
A-302-A Static pressure tip, for 3/16" and 1/8" ID plastic or rubber tubing with 6" insertion depth. Same Day $15.00 Order
A-302F-A 303 SS Static pressure tip with mounting flange, for 3/16" I.D. rubber or plastic tubing. 4" insertion depth, includes mounting screws Same Day $9.10 Order
A-302F-B 303 SS Static pressure tip with mounting flange, for 3/16" rubber or plastic tubing. 6" insertion depth, includes mounting screws Same Day $12.50 Order
A-302F-C 303 SS Static pressure tip with mounting flange, for 3/16" rubber or plastic tubing. 8" insertion depth, includes mounting screws Same Day $14.25 Order
A-303 Portable static pressure tip, for 3/16" ID rubber or plastic tubing with 4" insertion. Same Day $9.95 Order
A-305 Static pressure tip, low resistance application, furnished with two (2) hex jam nuts and two (2) mounting washers for duct mounting and with 1/8" NPT pipe thread for pressure connection. Same Day $57.50 Order
A-305-SS Static pressure tip, low resistance application, furnished with two (2) hex jam nuts and two (2) mounting washers for duct mounting and with 1/8" NPT pipe thread for pressure connection in stainless steel. Same Day $94.50 Order
A-306 Outdoor static pressure sensor, includes 50' vinyl tubing, mounting bracket and hardware. Red sensor. Same Day $53.50 Order
A-306-A Outdoor static pressure sensor, includes 50' vinyl tubing, mounting bracket and hardware. Gray sensor. Same Day $53.50 Order
A-307 Static pressure fitting, for 1/4" metal tubing connection. Same Day $5.30 Order
A-307-SS Static pressure fitting, for 1/4" metal tubing connection in stainless steel. Same Day $40.75 Order
A-308 Static pressure fitting, for 3/16" and 1/8" ID plastic or rubber tubing. Same Day $4.10 Order
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. Same Day $7.80 Order
A-414 316 SS clean room pressure sensor. Same Day $26.50 Order
A-417A Static pressure pickup. For use in clean rooms, 60 micron filter picks up static pressure. Stainless steel wall plate fits 2" x 4" electrical box. Sealed with foam gasket, screws included. Barbed brass fitting holds 1/8" to 3/16" ID tubing. Same Day $9.25 Order
A-418A Static Pressure Pickup. Room mount with Delta Style plastic enclosure fits 2" x 4" electrical box. Fine mesh screen hides static pressure pickup port. Clean connection to 1/8" to 3/16" I.D. tubing and pressure sensor. Sealed with foam gasket, screws included. Same Day $9.25 Order
A-418E Static Pressure Pickup, European housing. Room mount with plastic enclosure fits 2" x 4" electrical box. Fine mesh screen hides static pressure pickup port. Clean connection to 1/8" to 3/16" ID tubing and pressure sensor. Sealed with foam gasket, screws included. Same Day $10.00 Order
A-418N Static Pressure Pickup, North American housing. Room mount with plastic enclosure fits 2" x 4" electrical box. Fine mesh screen hides static pressure pickup port. Clean connection to 1/8" to 3/16" ID tubing and pressure sensor. Sealed with foam gasket, screws included. Same Day $10.00 Order
A-419A Static pressure pickup ceiling mount. Plate rests on top of standard 3/4" thick ceiling tile while 60 micron filter faces down through 5/8" hole in tile. Filter is barely noticeable in room being monitored. Unit mounts to junction box. Barbed brass fitting holds 1/8" to 3/16" ID tubing. Same Day $9.00 Order
A-420A Static pressure pickup for roof or outside mount. Reduces effects of wind gusts to keep pressure readings stable when plate is parallel to ground. Structure withstands harsh environmental elements. Structure is 3- 1/4" across and 2-3/8" deep. EMT Conduit fitting is 1/2". Pressure connection is brass barbed fitting for 1/8" and 3/16" ID tubing. Same Day $21.00 Order
A-421 Static pressure tip measures duct static air pressure, assembly includes 6" probe, silicon rubber house and screws, built-in surge damper ensures stable readings, pressure spike reducer can be added to further smooth over pressure fluctuations. Same Day $25.00 Order
A-465 Flush mount space pressure sensor Same Day $9.25 Order
A-489 4" 303 SS straight static pressure tip with flange. Same Day $6.67 Order
A-491 6" straight SS static pressure tip with mounting flange. Same Day $6.67 Order
A-493 8" straight SS static pressure tip with mounting flange. Same Day $7.50 Order

Product Literature

Manuals

Catalog Pages

Drawings

Questions

Question
How do I hook up my Magnehelic® gage for an air velocity application with a pitot tube?
Answer
In our Application Guides on flow products, we explain very well how to take air velocity readings. The total pressure connection on the pitot tube is connected to one of the high pressure ports on the gage. The other high pressure port is plugged. The static pressure connection on the pitot tube is connected to one of the low pressure ports on the gage. The other low pressure port is plugged.
Question
Trying to measure differential pressure between OSA and indoors. Using transmitters with a range of +25pa to -25pa. Monitoring pressure variations occur from basically 0pa to 20pa over a short period of time (15 to 30 sec) Building is basically closed during testing, suspect OSA fluctuating due to winds? eddy currents etc. Any ideas, Building under positive pressure is critical for safety reasons Any ideas?
Answer
Whenever you are using outside air for a static pressure reference, fluctuations in outside conditions can cause erratic differential pressure readings. By using one of our outdoor static reference probes, you can diminish the influence of outdoor weather on your reading.

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