Barksdale Pressure Switches ~ Diaphragm Style

Barksdale Diaphragm Pressure Switches

D1S, D2S, D1H, D2H Series

Barksdale's Diaphragm Pressure Switches offer superior accuracy in a robust package, making them the ideal solution to your industrial pressure

control needs. Diaphragm switches are ideal for applications demanding instrument class accuracy and where pressure pulsations are less than 25 cycles per minute. Available in various pressure ranges up to 150 psi, diaphragm switches are suitable for use in either positive pressure or vacuum applications. Single, and dual, and triple circuit models are available.

Housed models (D1H & D2H) feature a durable, anodized aluminum enclosure with an integrated 1/2" NPT conduit connector,a tamper-resistant cover for the setpoint adjustment screws, and are rated to NEMA 4 as a standard. For applications requiring a highly accurate switch in a durable package, Barksdale's Diaphragm Pressure Switches are the ideal choice.

• Stripped and housed versions available
• High accuracy
• Ideal for pressure or vacuum
• Easy setpoint adjustment
• NEMA 4 (Housed Models)
• Up to 3 setpoints available in one switch
• Diaphragm SealOption Available

Barksdale's D1T & D2T Terminal Block Diaphragm Pressure Switches offer superior accuracy in a robust package, making them the ideal solution to your industrial pressure control needs. These switches are ideal for applications requiring water-tight, NEMA 4 housings a covered terminal strip and tamper-proof external adjustment. (Factory set models are also available.) With pressure ranges up to 150 psi, these housed diaphragm pressure switches are suitable for use in either positive pressure or vacuum applications. Sin

gle- and dual-circuit models are available. Housed models feature a durable, anodized aluminum enclosure. For applications requiring a highly accurate switch in a durable package, Barksdale's D1T & D2T Terminal Block Diaphragm Pressure Switches are the ideal choice.

• High reliability
• High accuracy
• NEMA 4
• Ideal for pressure and vacuum applications
• Single and dual switching capability
• Tamper-proof external adjustment
• Diaphragm Seal Option Available

Barksdale's D1X and D2X Explosion Proof Diaphragm Pressure Switches offer high accuracy and reliability, providing an ideal solution for your hazardous locations pressure control requirements. With vacuum and positive pressure ranges to 150 psi, NEMA 4,7,& 9 enclosures, a covered terminal strip and tamper-proof external adjustment, Barksdale D1X and D2X Explosion Proof Diaphragm Pressure Switches meet your needs in a wide variety of applications. These switches are available in single setting or dual control. An internal set screw allows for easy internal adjustment of setpoints. For applications requiring a highly accurate switch in a durable packag

e, Barksdale's Explosion Proof Diaphragm Pressure Switches are the ideal choice.

• Hermetically sealed
• Explosion proof housing for hazardous location
• Tamper proof setpoint adjustment
• Ideal for pressure or vacuum
• Diaphragm Seal Option Available
• High Accuracy and Reliability

Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches provide an ideal solution for pressure control applications requiring tamper proof external adjustment and environments which require water-tight NEMA 4 housings. These pressure switches are available in single or dual control settings for both positive pressure and vacuum models, to 150 psi. These snap-action switches may be wired normally open or normally closed through a 3/4"-14 NPT conduit connector to free leads to 18". All models feature self-locking set screw adjustment and dials which are calibrated for increasing setting. For applications requiring a highly accurate switch in a durable package, Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches are the ideal choice. Stripped models are also available.

• High reliability
• Extremely versatile
• Calibrated dial for easy setpoint adjustment
• Ideal for pressure or vacuum
• Diaphragm Seal Option Available

Call Anderson-Bolds for all your Pressure switch needs, 216-360-9800

Or visit our BARKSDALE web page.

Coax Valves for Flow Control

Coax Valves from Anderson-Bolds

For over 45 years, the coaxial valves developed by our company have formed a tried and tested element in the control of vacuums and gaseous, liquid, gelatinous, abrasive, contaminated, and aggressive media.

The coaxial valve design allows - as compared to conventional valves - high pressure media to be controlled at high flow rates. Our coaxial valves are available in 2/2 way or 3/2 way versions with threaded or flanged connections. The valves are actuated either by direct-acting solenoid or externally controlled.

high cycle life

fast actuation

compact design

maintenance free

bi-directional flow

pressure balanced

back pressure tight

installation position optional

valves operate from 0 bar upward

application with contaminated media

2-way Coax Valves

co-ax type	orifice mm	connection thread NPT	connection flange ANSI	pressure range psi	Cv value	media temperature	ambient temperature	switch time ms open/close
MK 10	DN 10	1/4 - 3/4	-	0 - 240 / 600	2.9	-22°F ... 248°F	14°F ... 176°F	25 / 25
MK / FK 15	DN 15	3/8 - 3/4	150 / 600 / 1500	0 - 240 / 600 / 960 / 1500	5.5	-40°F ... 320°F	-40°F ... 176°F	80 / 80
MK / FK 20	DN 20	3/4 - 1 1/4	150 / 600 / 1500	0 - 240 / 600 / 960 / 1500	8.5	-40°F ... 320°F	-40°F ... 176°F	110 / 110
MK / FK 25	DN 25	1 - 1 1/2	150 / 600 / 1500	0 - 240 / 600 / 960 / 1500	12.7	-40°F ... 320°F	-40°F ... 176°F	130 / 130
MK / FK 32	DN 32	1 1/4 - 1 1/2	150 / 600 / 1500	0 - 240 / 600 / 960 / 1500	16.2	-40°F ... 320°F	-40°F ... 176°F	440 / 250
MK / FK 40	DN 40	1 1/2 - 2	150 / 600 / 1500	0 - 240 / 600 / 960	21.2	-40°F ... 320°F	-40°F ... 176°F	520 / 150
MK / FK 50	DN 50	2	150	0 - 240	32.2	-4°F ... 248°F	-4°F ... 176°F	400 / 400
FK 65	DN 65	-	150	0 - 240	51.8	-4°F ... 176°F	-4°F ... 176°F	600 / 800
FK 80	DN 80	-	150	0 - 240	80.5	-4°F ... 176°F	-4°F ... 176°F	600 / 800 www.anderson-bolds.com