Gauge Sizes
151-1/2"
252-1/2"
404"
606"
Product page
NOSHOK
400/500 Series All Stainless Steel Dry & Liquid Filled Pressure Gauges
The NOSHOK 400/500 Series pressure gauges are engineered for severe industrial applications demanding high corrosion resistance, durability, and measurement precision. Built with a 304 stainless steel case and 316 stainless steel wetted parts, these gauges are available in dry (400 Series) or liquid filled (500 Series) configurations for harsh environments including chemical processing, oil & gas, offshore, paper mills, agriculture, marine, and water/wastewater systems.
Corrosion-resistant fillable dry (400 Series) or liquid-filled (500 Series) gauge
Vacuum and compound ranges through 0 psi to 20,000 psi
1-1/2", 2-1/2", 4" and 6" dial gauge sizes available
Heavy-duty 304 Stainless Steel case and bayonet ring
Ready for quotationShare your range, connection and case requirement.
Talk to ATHApplicationsChemical processing, oil field & offshore, paper mills, agriculture, marine, CNG/LNG and water & wastewater
Gauge sizes1-1/2", 2-1/2", 4" and 6"
Pressure rangesVacuum and compound ranges from -30 inHg to 0 psi up to 0 to 20,000 psi
Case & Wetted parts304 Stainless Steel case with 316 Stainless Steel wetted parts
Accuracy1-1/2": ±2.5% (optional ±1.6%), 2-1/2": ±1.5% (optional ±1.0%), 4" & 6": ±1.0% (optional ±0.5%)
Part number example40 - 500 - 3000-psi - 1/2 - GY40
Technical data
Selection and ordering reference
Use this technical matrix to configure gauge size, series type, pressure range, connection size and required options before submitting your quotation request.
Dial sizes1-1/2", 2-1/2", 4", 6"
Pressure rangesVacuum to 20,000 psi
ConstructionAll 304/316 Stainless Steel
Connection1/8", 1/4", 1/2" NPT, SAE
Series & Case Types
400Dry, bottom connection
410Dry, back connection
500Liquid filled, bottom connection
510Liquid filled, back connection
Pressure Ranges
30vac-30 inHg to 0 psi
30/30-30 inHg to 30 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
200000 to 20,000 psi
Scale Options
psipsi single scale
psi/barpsi/bar dual scale
psi/kPapsi/kPa dual scale
barbar single scale
Connection Sizes
1/81/8" NPT (15-series)
1/41/4" NPT male
1/21/2" NPT male
SST7/16-20 SAE adjustable
Popular Options
SSFF304SS Front flange
SSRF304SS Rear flange
SGSafety glass lens
MIPMaximum indicating pointer
IAIncreased accuracy
CCCertified calibration
O2Oxygen cleaning
Part number example
40 - 500 - 3000-psi - 1/2 - GY40
40Gauge size4"
500Series typeLiquid filled, bottom conn
3000-psiPressure range0 to 3,000 psi
1/2Connection size1/2" NPT male
GY40Fill liquidGlycerine -40°F/°C
Technical specifications
Pressure rangesVacuum and compound ranges through 0 psi to 20,000 psi
Accuracy1-1/2": ±2.5%; 2-1/2": ±1.5%; 4" & 6": ±1.0% (opt. ±0.5%)
Materials304 Stainless Steel case with 316 Stainless Steel wetted parts
Temperature limitDry: -40°F to 392°F; Liquid filled: -4°F to 140°F (Glycerine) or -40°F to 140°F (Silicone)
Connection sizes1/8", 1/4", 1/2" NPT and 7/16-20 SAE adjustable
Operating notes
Dynamic pressure limited to 60% of dial range; static pressure to 90% (<=15,000 psi) or 75% (>15,000 psi).
Cleaning for Oxygen Service (O2) available on dry (400) or Halocarbon filled (HL) units.
Certifications available: ECE-R110 (CNG/LNG), Certified Calibration (CC), Material Traceability.
Product Description
The NOSHOK 400/500 Series features an all-stainless steel construction designed to withstand corrosive process media and aggressive external atmospheres. The 400 Series is supplied dry but field fillable, while the 500 Series is factory liquid filled to dampen severe vibration and pressure pulsations.
Available in bottom or back connections with front or rear flange configurations, panel mount clamps, safety glass lenses, adjustable pointers, and certified oxygen cleaning options.
Heavy-duty industrial construction with 304 SS case and 316 SS internals
Pressure ranges from vacuum (-30 inHg) up to 20,000 psi (1,400 bar)
Solid front safety case option available on 4" and 6" models
Glycerine (standard), silicone, halocarbon and mineral oil liquid fill options
NPT and SAE connection sizes available
Ordering Information
Sizes15 = 1-1/2", 25 = 2-1/2", 40 = 4", 60 = 6"
Series / Case types400 = Dry bottom connection, 410 = Dry back connection, 500 = Liquid filled bottom connection, 510 = Liquid filled back connection, 401/411 = 1-1/2" dry
Pressure rangesVacuum (-30 inHg to 0 psi), compound (-30 inHg to 15..300 psi), and positive pressure up to 20,000 psi
Scale optionspsi single scale, psi/bar, psi/kPa, psi/kg/cm², and bar single scale
Connection sizes1/8" NPT (15-series), 1/4" NPT (25/40/60-series), 1/2" NPT (40/60-series), 7/16-20 SAE adjustable
Options & AccessoriesFront flanges (SSFF), rear flanges (SSRF), panel mount clamps (PMC/SPMC), safety glass (SG), maximum pointer (MIP), oxygen cleaning (O2), calibration certificates (CC)
Part Number Example
Example40 - 500 - 3000-psi - 1/2 - GY40
Gauge size40 = 4"
Series & Case type500 = Liquid filled, 304 SS case, bottom connection
Pressure range & scale3000-psi = 0 to 3,000 psi single scale
Connection size1/2 = 1/2" NPT male
Fill liquidGY40 = Standard -40°F/°C Glycerine fill
Product Specifications
Pressure rangesVacuum through 0 psi to 20,000 psi (1,400 bar)
Accuracy1-1/2": ±2.5% (optional ±1.6%); 2-1/2": ±1.5% (optional ±1.0%); 4" and 6": ±1.0% (optional ±0.5% full scale)
Temperature ratingsDry: -40°F to 392°F (-40°C to 200°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. Static pressure: ≤15,000 psi: 90% of dial range; >15,000 psi: 75% of dial range
Case & Bezel304 Stainless Steel with removable bayonet ring
Measuring element & Connection316 Stainless Steel C-tube or coiled safety Bourdon tube and 316 SS socket with restrictor orifice
Window lensSafety laminated glass (standard on 4" & 6"), Polycarbonate or instrument glass
Operating Notes
Dynamic pressure should be limited to 60% of the dial range. Static pressure with no sharp fluctuations should be limited to 90% (for ranges ≤15,000 psi) or 75% (for ranges >15,000 psi).
Cleaning for Oxygen Service (O2) is available only for dry (400 Series) or Halocarbon (HL) filled gauges.
ECE-R110 certified models available for compressed natural gas (CNG) and liquefied natural gas (LNG).
Standard orifice threaded 0.8mm 316SS included to dampen pressure surges.
Consult ATH Performance for rapid technical assistance, custom dial art, and factory direct certificates.