Murphy by Enovation Pressure Gauges

20BPG / 20BVG / 20BTG Overview

Features
• 2 in. (51 mm) Dial Gages
• Heavy-duty Rated
• Environmentally Sealed2
• Pressure Models Up to 400 psi (2.76 MPa) [27.6 bar]
• Temperature Models Up to 440°F (220°C)

Temperature Range:

• Pressure/Vacuum: Ambient: -40°F (-40°C) thru 150°F (66°C).
• Process: -40°F (-40°C) thru 250°F (121°C).

Maximum Panel Thickness: 1/4 in. (6 mm).

Port: Brass.

Case: Plated steel; mounting clamp included (except for direct mount models).

Bezel: Polished stainless steel, standard; optional bezels are available (see How to Order).

Pointer: White (black dial); black (white dial).

Lens: Polycarbonate, high-impact.

Sensing Element: Beryllium copper diaphragm.

20DP / 25DP / A20DP / A25DP Overview

Features
• Monitors Engine Oil and Fuel Filters
• Actuates Alarm or Shutdown System When Filter Becomes Clogged
• Combination Indicating Gage and Limit Switch
• Actuates Filter Backwash
• Signals Coolant Loss or Aeration On Engine Water Pump

Dial: White on black, dual scale; U.S.A. standard scale is psi/kPa. Other scales available–inquire.

Case:

• 20DP and 25DP Series: plated steel.
• A20DP and A25DP Series: polycarbonate.

Bezel: Polished stainless steel, standard; others are available (see How to Order).

Lens: Polycarbonate, high-impact.

Temperature Range:

• Ambient: -40°F (-40°C) thru 150°F (66°C).
• Process: -40°F (-40°C) thru 250°F (121°C).

Process Connection: 1/8-27 NPTM brass.

Sensing Element: Beryllium copper diaphragm.

20V / 25V / A20V / A25V Overview

Features
• Combination Indicating Gage and Limit Switch
• Critical Vacuum Limit Switches Are Visible and Adjustable (Most Models)
• Switch Can Activate Alarms and/or Shutdown Equipment
• Monitor Engine Load

Dial: White on black, dual scale; U.S.A. standard scale is Inches of Hg/kPa.

Case (mounting clamp included):

• 20 and 25 Series: Plated steel.
• A20 and A25 Series: Polycarbonate/glass filled.

Bezel: Polished stainless steel, standard; others are available

Lens: Polycarbonate, high-impact.

Process Connection: 1/8-27 NPTM brass.

Sensing Element: Beryllium copper diaphragm.

20VWC / 25VWC / A25VWC Overview

■ 2 in. (51 mm) and 2-1/2 in. (64 mm) dia. Water Column Swichgage for Detecting Restricted Dry Air Filters.

■ Indicating Gage and Limit Switch in One.

■ Use the Switch to Activate Alarms and/or to Shut Down Equipment

■ Dependable and Accurate

■ Dual Scale Reading

■ Dash Mounting for Easy Viewing

Contact Rating: 2 A @ 30 V AC/DC.

Contact Adjustment: Allen head.

Wire: 18 AWG x 12 in. (1.0 mm2 x 305 mm), (#4 screw on A25VWC)

Dial: White on black.

Clamp: Metal.

Mounting hole:

• 20VWC: 2-1/16 in. (52 mm).
• 25VWC/A25VWC: 2-11/16 in. (68 mm).

Maximum panel thickness: 1/4 in. (6 mm)

Port: Brass 1/8-27 NPT.

Bezel: Stainless steel.

Case: 20VWC and 25VWC: plated steel. A25VWC: glass filled polycarbonate.

Lens: Polycarbonate.

45 Series Overview

Dial: White on black, dual scale, psi and kPa standard, 4-1/2 in. (114 mm) diameter

Case: Die cast aluminum, surface or panel mount

Overrange: Do not exceed 10% FS above full range

Process Connection: 1/4 NPTM thru 1000 psi; 1/2 NPTM 1500 - 10,000 psi; back connection optional

Sensing Element: Bronze or 316 stainless steel bourdon tube

A20P/A25P Overview

Dial: White on black, dual scale; U.S.A. standard scale is psi/kPa; U.K. standard scale is psi/bar.

Case: Polycarbonate/glass filled, corrosion-resistant; steel mounting clamp included

Bezel: Polished stainless steel, standard; others are available.

Pointer: Tempered nickel silver; Red tip.

Lens: Polycarbonate, high-impact.

Oil: Silicon Oil.

Temperature Range:

• Ambient: -40°F (-40°C) thru 150°F (66°C).
• Process: -40°F (-40°C) thru 250°F (121°C).

Process Connection: 1/8-27 NPTM brass.

Sensing Element: Beryllium copper diaphragm.

DHK Overview

■ Custom Fit Oil Pressure Line for Any Engine

■ Swaged Fittings

■ Wide Pressure and Temperature Compatibility

■ Tough Materials for Industrial Use

■ Adapters for U.S. or Metric

Tubing: Nylon, 1/8 in. (3 mm) I.D. suitable for continuous service from -40 to 200°F (-40 to 93°C). Intermittent service +250°F (121°C).

Fittings: Brass and steel.

Adaptors: Brass and steel.

Washers: Copper (supplied with all non-tapered thread fittings).

Working Pressure: 2,500 psi (17.2 MPa) [172.0 bar].

Minimum Burst Pressure: 10,000 psi (68.9 MPa) [689.0 bar] @ 200°F (93°C).

OPL Overview

Features

• Combination Indicating Gage and Critical Pressure Limit Switches

• High and Low Pressure Limit Contacts Are Visible and Adjustable

• Panel and Surface Mount Versions

• Indicating-Only Murphygage® Available

• Latching Control Relay Versions Available

Case: Die cast aluminum; weatherproof.

Contacts: See Electrical page 3, for contact ratings.

Dial: 4-1/2 in. (114 mm) white on black, dual scaled psi /kPa. Other dial configurations available. Consult factory.

Gage Accuracy: ±2% for the first and last quarters of the scale, the middle half is ±1%.

Geared Movement: 302 and 304 stainless steel.

Lens: Optically clear polycarbonate.

Pointer: High visibility with a pointer calibration hub.

Process Connection: Available in 1/4 NPT and 1/2 NPT. See Table B, page 5.

Sensing Element: Select from bronze or 316 stainless steel bourdon tube.

PT167EX Overview

Features

• Designed to Monitor Line Pressures of Highly Viscous and Mildly Corrosive Fluids

• Combination Indicating Gage and Critical Pressure Switch

• High and Low Pressure Limit Contacts Are Visible and Adjustable

• Explosion-Proof Enclosure

Case: Explosion-proof, sand cast aluminum. Lens is removable. CSA Listed for Class I, Division 1, Groups C and D. (The PT167EX is CSA listed for ranges 100 to 5000 psi 689 kPa to 34.5 MPa [6.89 to 344.74 bar].)

Contact Rating: 1 A, 125 V AC.

Dial: 4-1/2 in. (114 mm) white on black, dual scaled psi /kPa. Other dial configurations available. Consult factory.

Ranges: See How to Order on reverse side.

Gage Accuracy: ±3% full scale.

Process Connection: 2 NPT.