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GP-Series NEMA 4 Pressure Switch
Brand: Ashcroft IncThe Ashcroft® GP Pressure Switch is designed for use on tough applications requiring a 316L SS enclosure.
The simple design allows for easy field installation and calibration, while proven technology ensures a highly reliable, safe and accurate switch.
Ideal for pressure control, safety shutdown or alarm operations.
Specifications:
- Accuracy: ±1.00% full scale
- NEMA 4X (IP65) 316L stainless steel enclosure
- Single or dual set points
- Pressure ranges: vacuum to 3,000 psi
- Wide selection of switch elements and wetted materials
- Choice of process connections
- Fixed or adjustable deadbands; adjustable setpoints from 15%-100% of range
Specifications
Brand
Adjustment Type
- Differential Pressure Control, Single Set Point, Adjustable Deadband
- Differential Pressure Control, Single Set Point, Fixed Deadband
- Differential Pressure Control, Two Independently Adjustable Set Points, Fixed Deadband
- Factory Set (Pre-Set)
- Field Adjustable
- Pressure Control, Single Set Point, Adjustable Deadband
- Pressure Control, Single Set Point, Fixed Deadband
- Pressure Control, Two Independently Adjustable Set Points, Fixed Deadband
Approvals & Certifications
- CE
- CSA
- UL
Burst Pressure
- bar: 2.41 to 965.26
- kPa: 241 to 96,526
- psig: 35 to 14,000
Burst Pressure - Compound
- bar: 27.58
- kPa: 2,758
- psig: 400
Burst Pressure - Vacuum
- bar: 27.58
- kPa: 2,758
- psig: 400
Compound Pressure
- 30” Hg (-760 mmHg) at 15 psi
Deadband, Approximate
- bar: 0.03 to 179.26
- bar: 0.03 to 24.82
- kPa: 3.44 to 2,482
- kPa: 3.45 to 17,926
- psid: 0.5 to 360
- psig: 0.50 to 2,600
Deadband, Approximate - Compound
- bar: 0.03 to 1.72
- kPa: 6.98 to 172.36
- psig: 1 to 25
Electrical Connectors
- 3/4” Sealed Conduit Connection with 16” Lead Wires
- 3/4” to 1/2” Conduit Reducing Bushing
- Terminal Block
Electrical Rating
- 1/8 hp at 125 Vac/Vdc
- 10 A at 125 Vac/Vdc
- 11 A, 125/250 Vac, 5 A, 30 Vdc
- 15 A, 125/250 Vac
- 15 A, 125/250/480 Vac, 1/2 A, 125 Vdc, 1/4 A, 250 Vdc
- 6 A at 30 Vdc
Element
- Ammonia Service
- Dual Elements
- General-purpose
- Heavy Duty AC
- Heavy Duty DC
- Hermetic Seal Switch, General-purpose
- Hermetic Seal Switch, Narrow Deadband
- Hermetic Seal, Gold Contacts
- High Temperature 149° C (300° F)
- Low Level (Gold Contacts)
- Narrow Deadband
- Sealed Environment Proof
Enclosure, Body Material
- Die Cast Aluminum
- Stainless Steel
Environmental Protection
- IP65
- IP66
- NEMA 4, 4X / IP65, 66
- NEMA 4X
Mounting
- Top Mounting
NPT Connection
- 1/2” NPT Female
- 1/2” NPT Male
- 1/4” NPT Female
- 1/4” NPT Female & 1/2” NPT Male Combination
O-Ring Material
- Buna-N
- Monel
- Stainless Steel
- Teflon
- Viton
Options
- Chained Cover
- Cleaned for Oxygen
- Fungus Proofing
- Stainless Steel Tags
Pressure Range
- bar: 0.89 to 206.84
- kPa: 7.45 to 20,684
- psig: 1.08 to 3,000
Pressure Type
- Differential
- Gauge
- Vacuum
Proof Pressure
- bar: 1.38 to 827
- bar: 1.49 to 551.58
- kPa: 137 to 82,737
- kPa: 149 to 55,158
- psid: 21.6 to 8,000
- psig: 20 to 12,000
Proof Pressure - Compound
- bar: 17.24
- kPa: 1,723
- psig: 250
Proof Pressure - Vacuum
- bar: 17.24
- kPa: 1,723
- psig: 250
Repeatability
- ± 1 % of Operating Range
Set Point - Decreasing
- -30” Hg to 3,000 psig
- bar: 0 to 206.8
- Inches Hg: -30 to 0
- Inches WC: 30 to 150
- kPa: 0 to 20,680
- psig: 0 to 3,000
Set Point - Increasing
- -30” Hg to 3,000 psig
- bar: 0 to 206.8
- Inches Hg: -30 to 0
- Inches WC: 30 to 150
- kPa: 0 to 20,680
- psig: 0 to 3,000
Static Pressure
- bar: 0.37 to 68.95
- kPa: 37.23 to 6,894
- psid: 5.4 to 1,000
Switch Type
- 2 SPDT
- DPDT
- SPDT
System Pressure
- bar: -1.02 to 551.58
- Inches Hg: -30 to 0
- Inches WC: 30 to 150
- kPa: -100 to 82,737
- psig: -14.73 to 12,000
Vacuum Pressure
- -30” Hg at -14.73 psig
- bar: -1.02
- kPa: -100
- Process Market:
- Refineries
- Chemical and Petrochemical Plants
- Pulp and Paper Mills
- Power Plants
- Steel Mills
- Water and Sewage Treatment Facilities
- Industrial Market:
- Pumps, Compressors and Turbines
- Dairies and Breweries
- Boilers and Burners
- Reverse Osmosis Systems
- Filters and Presses
- Paint Spraying Equipment
- Specialized OEM Equipment
- Medical and Life Sciences Market:
- Pharmaceutical Plants
