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Ashcroft P-Series Pressure and Differential Pressure Switches, Watertight and Explosion-Proof Enclosure

Pressure and Differential Pressure Switches, Watertight and Explosion-Proof Enclosure
P-Series

This top-of-the-line Ashcroft® process switch series includes many state-of-the-art features for safety and reliability in virtually all process applications.

• Die cast aluminum enclosure is standard with NEMA 4X (weatherproof, corrosion resistant) NEMA 7 (explosion-proof enclosure Class I, Div. 1 & 2, Groups B, C & D and Class II, Div. 1 & 2, Groups E, F & G). Dual chamber design allows setpoint changes to be made safely even with power connected.
• Single or dual independently adjustable setpoints meet all setpoint requirements
• UL, CSA listed
• Fixed or adjustable deadband
• Readily available
• Standard pressure connection materials:
     Pressure psi ranges- 316L stainless steel
     Differential pressure ranges- Nickle plated brass
     Pressure and differential inches of water ranges- Epoxy coated carbon steel
• Setpoints adjustable from 15-100% of range

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6Table 7
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Table 1Function
PPAPressure control, single setpoint, adjustable deadband
PPDPressure control, two independently adjustable setpoints, fixed deadband
PPSPressure control, single setpoint, fixed deadband
PDADifferential pressure control, single setpoint, adjustable deadband
PDDDifferential pressure control, two independently adjustable setpoints, fixed deadband
PDSDifferential pressure control, single setpoint, fixed deadband
Table 2Enclosure
N7NEMA 7/9, IP65, watertight, corrosion resistant and explosion proof Div. 1 & 2
Table 3Switch Element
CodeDescription/Maximum Electrical Ratings UL/CSA Listed
HGeneral purpose
JHermetically sealed switch, general purpose
Single(PS)Switch Elements UL/CSA Listed
KNarrow deadband
FSealed environment proof
GGeneral purpose
PHermetically sealed switch, narrow deadband
JHermetically sealed switch, general purpose
Dual(PD)Switch Elements UL/CSA Listed
KKNarrow deadband
FFSealed environment proof
GGGeneral purpose
PPHermetically sealed switch, narrow deadband
JJHermetically sealed switch, general purpose
Table 4Actuator Seal
CodeMaterial Range
BBuna N yes yes
VViton yes yes
TTeflon yes yes
SSS
PMonel
Table 5Pressure Port
251⁄4 NPT Female
061⁄4 NPT Female and 1⁄2 NPT Male Combination
071⁄2 NPT Female
Table 6Options
XK3Terminal block
Table 7Pressure Range
–30 in.Hg–30 in.Hg Vacuum
–30 in.Hg/15 psi–30 in.Hg/15 Compound psi
30 in.H₂O30 in.H₂O psi
60 in.H₂O60 in.H₂O psi
100 in.H₂O100 in.H₂O psi
150 in.H₂O150 in.H₂O psi
15#15 psi
30#30 psi
60#60 psi
100#100 psi
200#200 psi
400#400 psi
600#600 psi
1000#1000 psi*
2000#2000 psi
3000#3000 psi


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