Gauge Size
454-1/2"
Product page
NOSHOK
600/700 Series Process Dry & Liquid Filled Pressure Gauges
The NOSHOK 600/700 Series Process Pressure Gauges feature a rugged 4-1/2" turret-style black Polypropylene safety case engineered with a solid front partition and full blowout back for maximum operator protection. Available with brass wetted parts (600 Series) or 316 stainless steel wetted parts (700 Series), in both field-fillable dry and factory liquid-filled executions for chemical processing, oil & gas, power generation, utilities, and high-vibration process environments.
Turret style dry (field fillable) and liquid filled process gauges (640/740 dry, 660/760 liquid filled)
Vacuum and compound ranges through 0 psi to 15,000 psi
4-1/2" dial gauge size with high-visibility dial and adjustable pointer
Solid front partition and full blowout back for superior operator safety
Ready for quotationShare your range, connection and case requirement.
Talk to ATHApplicationsOil field & offshore, chemical processing, power generation, utilities, injection molding, laboratory test equipment and wastewater
Gauge size4-1/2" (115 mm)
Accuracy±0.5% full scale (ASME B40.1 Grade 2A)
Pressure rangesVacuum and compound ranges from -30 inHg to 0 psi up to 0 to 15,000 psi
Case constructionBlack Polypropylene turret safety case with solid front and blow-out back
Wetted parts600 Series: Brass / Copper alloy; 700 Series: 316 Stainless Steel
Part number example45 - 640 - 3000-psi - 1/2 - BT8
Technical data
Selection and ordering reference
Configure dial type, wetted parts metallurgy, pressure range, and accessories for the NOSHOK 600/700 Process Series.
Dial size4-1/2" (115 mm)
Accuracy±0.5% full scale (Grade 2A)
Safety styleSolid Front / Blow-out Back
Pressure rangeVacuum to 15,000 psi
Series & Case Types
640Brass internals, Dry bottom connection
660Brass internals, Liquid filled bottom connection
740316 SS internals, Dry bottom connection
760316 SS internals, Liquid filled bottom connection
Pressure Ranges
30vac-30 inHg to 0 psi
30/30-30 inHg to 30 psi
600 to 60 psi
1000 to 100 psi
3000 to 300 psi
10000 to 1,000 psi
30000 to 3,000 psi
50000 to 5,000 psi
100000 to 10,000 psi
150000 to 15,000 psi
Scale Options
psipsi single scale
psi/barpsi/bar dual scale
psi/kPapsi/kPa dual scale
barbar single scale
Connection Sizes
1/41/4" NPT male
1/21/2" NPT male
SST7/16-20 SAE adjustable
Options & Accessories
SGSafety glass lens
MIPMaximum indicating pointer
PMRPanel mount ring
GY40Glycerine fill -40°F
SLSilicone fill
CCCertified calibration
O2Oxygen cleaning
Part number example
45 - 640 - 3000-psi - 1/2 - BT8
45Gauge size4-1/2"
640Series typeBrass, Dry turret case
3000-psiPressure range0 to 3,000 psi
1/2Connection size1/2" NPT male
BT8OptionBrass orifice 0.8 mm
Technical specifications
Pressure rangesVacuum through 0 psi to 15,000 psi
Accuracy±0.5% full scale (ASME B40.1 Grade 2A)
Case constructionBlack Polypropylene turret case with solid front partition & blow-out back
Wetted parts600 Series: Brass/Bronze; 700 Series: 316 Stainless Steel
Connections1/4" NPT, 1/2" NPT bottom or lower back, SAE J1926-3
Operating notes
Solid front partition and blow-out back provide maximum personnel protection during accidental overpressure events.
Cleaning for Oxygen Service (O2) available for dry or Halocarbon (HL) filled units.
Compatible with direct-mount diaphragm seals and distribution manifolds.
Product Description
The NOSHOK 600/700 Series process pressure gauges are designed specifically for the demanding requirements of process industries where operator safety, measurement reliability, and chemical resistance are paramount. The solid front design places a solid wall between the measuring element and the dial face, directing any catastrophic pressure blowout safely out the back of the case.
Available in bottom or lower back connections, with panel mount ring options, safety glass lenses, maximum indicating pointers, and oxygen cleaning services.
ASME B40.1 Grade 2A accuracy (±0.5% of span) across full scale
Solid front partition wall with full blowout backplate
4-1/2" dial with zero-adjustable knife-edge pointer
Glycerine (GY40 standard), silicone (SL), and halocarbon (HL) fill options
1/4" NPT and 1/2" NPT bottom and lower back connections
Ordering Information
Sizes45 = 4-1/2"
Series / Case types640 = Brass internals, dry; 660 = Brass internals, liquid filled; 740 = 316 SS internals, dry; 760 = 316 SS internals, liquid filled
Pressure rangesVacuum (-30 inHg to 0 psi), compound (-30 inHg to 15..300 psi), and positive pressure up to 15,000 psi
Scale optionspsi single scale, psi/bar dual scale, psi/kPa dual scale, psi/kg/cm², and bar single scale
Connection sizes & locations1/4" NPT bottom or lower back, 1/2" NPT bottom or lower back, 7/16-20 SAE adjustable
Options & AccessoriesSafety glass lens (SG), maximum indicating pointer (MIP), panel mount rings (black/chrome PMR), steam syphons, snubbers, oxygen cleaning (O2), calibration certificates (CC)
Part Number Example
Example45 - 640 - 3000-psi - 1/2 - BT8
Gauge size45 = 4-1/2"
Series & Case type640 = Brass internals, dry turret safety case, bottom connection
Pressure range & scale3000-psi = 0 to 3,000 psi single scale
Connection size1/2 = 1/2" NPT male
OptionBT8 = Brass threaded orifice 0.8 mm (standard)
Product Specifications
Pressure rangesVacuum through 0 psi to 15,000 psi
Accuracy±0.5% full scale (ASME B40.1 Grade 2A)
Temperature ratingsDry: -40°F to 150°F (-40°C to 65°C); Liquid filled (Glycerine): -4°F to 140°F (-20°C to 60°C); Liquid filled (Silicone): -40°F to 140°F (-40°C to 60°C)
Working pressure limitationsDynamic pressure: limited to 60% of dial range (max 0.9x FS). Static pressure: limited to 90% of dial range (max 1x FS). Short term overpressure max 1.5x FS (<10,000 psi)
Case & RingBlack Polypropylene turret safety case with solid front wall and blow-out back cover
Window lensPolycarbonate standard, laminated safety glass (SG) or instrument glass (GL) optional
PointerBalanced aluminum with black finish and micro-adjustable zero feature
Operating Notes
For every 18°F (10°C) shift in temperature from calibration point (68°F / 20°C), up to ±0.4% additional error can occur.
Cleaning for Oxygen Service (O2) is available only for dry (640/740) or Halocarbon (HL) filled gauges.
Solid front safety design isolates process media from operator face in the event of tube failure.
Self-draining and field fillable design allows easy transition from dry to liquid filled in the field.
Consult ATH Performance for engineered assemblies including diaphragm seals, distribution manifolds, and syphon attachments.