Description & Features:

• Pulsation resistant, liquid filled stainless steel case

• Glycerin filled standard

• Brass, lead free brass or stainless steel internals

• Restricted orifice

• Ventable plug on 2.5” (63mm) and 4” (100mm)

bottom mount (excluding SAE connection)

• Crimp-On bezel

• Dual scale (psi/kPa)/(psi/bar)

• Optional U-Clamps and front flanges

• Dry case available

• ASME B40.100 compliant (EN837-1 available on

2” (50mm) dial and up)

• CRN registered

• 5 year warranty

Dial 1.5” (40mm), 2” (50mm), 2.5” (63mm), 4” (100mm), white aluminum with black and red markings
Case AISI 304 SS
Lens Polycarbonate
Ring AISI 304 SS, Crimp-On
Socket PFQ: OT 58 brass with restricted orifice or AISI 316 SS with restrictor screw PFQ-LF: Lead free brass with restricted orifice
Connection 1/8”, 1/4” or 1/2” NPT or BSP (G) or 7/16-20 SAE standard with restricted orifice (other thread types are available)
Fill Liquid Glycerin
Bourdon Tube 1.5” (40mm), 2” (50mm): Phosphor bronze C or coil shaped for brass socket SS C or coil shaped for 316 SS socket 2.5” (63mm), 4” (100mm): Phosphor bronze or lead free phosphor bronze C or coil shaped for brass socket, AISI 316 SS C or coil shaped for 316 SS socket
Movement OT 59 brass or SS
Pointer Aluminum, anodized black
Welding Brass: Silver alloy, 316SS: TIG
Over-pressure Limit 25% for pressures up to 1,450 psi (100 bar), 15% for pressures over 1,450 psi (100 bar)
Socket Gasket Buna N for two-piece internal socket seal
Fill Plug Buna N
Lens Ring Gasket Silicone rubber
Working Pressure Maximum 75% of full scale value
Ambient/Process Temperature Dry: -40°F to 200°F (-40°C to 93°C) Glycerin Filled: -4°F to 150°F (-20°C to 65°C)
Accuracy 1.5” (40mm), 2” (50mm): ±2.5% of full scale value 2.5” (63mm), 4” (100mm): ±1.5% of full scale value
Enclosure Rating IP65
Winters PFQ/PFQ-LF Liquid Filled

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