Dial

2.5”(63mm), 4” (100mm), 6” (150mm) white aluminum with black and red markings

4”(100mm) white aluminum with black and red markings

Case

AISI 304 SS

AISI 304 SS

Lens

Polycarbonate

Polycarbonate

Ring

AISI 304 SS

AISI 304 SS

Socket

316 SS 2.5", 4": Welded one-piece socket

OT 58 brass

Connection

1/4” NPT or 1/2” NPT standard
2.5” (63mm): 1/4” NPT standard only

1/4” NPT or 1/2” NPT standard

Bourdon Tube

316 SS, drawn seamless

Phosphor bronze

Movement

304 SS 4” (100mm) : Over/under stops

OT 59 brass

Pointer

2.5”(63mm): Aluminum, anodized black
4” (100mm), 6” (150mm): Aluminum, anodized black, micrometer adjustable

4”(100mm) aluminum, anodized black, micrometer adjustable

Welding

TIG

Silver alloy

Fill Liquid

Glycerin

Glycerin

Over-Pressure Limit

30% for pressures up to 600 psi (4,147 kPa), 15% for pressures over 600 psi (4,147 kPa)

25% for pressures up to 1,400 psi

15% for pressures over 1,400 psi

Gasket Material

2.5”(63mm): Buna N for case, block seal, and lens seal (silicone rubber option)
4” (100mm), 6” (150mm): EPDM

Buna N for socket, lens,
filling plug and blow-out vent (silicone rubber option)

Working Pressure

Maximum 75% of full scale value

Maximum 75% of full scale value

Ambient/Process Temperature

Dry : (-40°C to 93°C)
Glycerin filled : (-20°C to 65°C)

Dry : (-40°C to 93°C)
Glycerin filled : (-20°C to 65°C)

Accuracy

2.5”(63mm) : ±1.5% of full scale
4” (100mm), 6” (150mm) : ±1%

4”(100mm): ±1% ANSI/ASME Grade 1A

Enclosure Rating

IP66 , EN60529-1 (IEC529-1)

IP66 , EN60529-1 (IEC529-1)