Home > Tubular Level Gages > 1/2" NPT Carbon Steel Level Sight Glass Valves (w/ Optional Gage Glass)

1/2" NPT Carbon Steel Level Sight Glass Valves (w/ Optional Gage Glass)

Your Price: $209.00

Stock Status:
In Stock.

Stock Quantity: 4

Part Number:Q170-EE

Vessel Connection:1/2 inch MNPT
Gauge Glass Diameter:5/8 inch
Valve Body Material:NACE Compliant Carbon Steel (Approved for Petroleum Sour Gas Service)
Valve Pressure Rating:500 PSI (34 BAR) at 450F (232C)
Glass Seal Material:Buna

Required Center to Center Distance

Exact Gage Valve Center Fixing Distance (Center To Center Distance)

Distance (Inch):

Quantity

Description
Customer Reviews

Tubular Level Gauges are designed to view liquid levels using clear or red line Borosilicate (Pyrex) tubing to view liquid levels. All valves use a stuffing box configuration to seal the glass tube, and have a ball check shutoff to prevent loss of vessel contents in case of glass failure. Operating pressure and temperatures are subject to the limitations of the tubular gauge glass and washer composition. These valve bodies are rated for 500 PSIG at 450F. The actual pressure limitations are of the gage glass. Note that these valves are of carbon steel, which may develop rust/corrosion under steam/water service. Use with oils or petrochemical liquids.

The following pressure values are for industry standard high pressure gage glass use (steam values are for reference only - for steam service, choose stainless steel valves). These items are considered commodity components and come without special certifications.

Gage Glass Length (Inch)	Temperature Up To 150F Without Corrosion (PSIG)	Steam Boiler Service up to 425F (PSIG)
8	435	340
10	420	315
12	410	305
14	390	295
16	375	285
18	360	280
20	350	270
24	320	255
30	280	Not Recommended
36	245	Not Recommended
48	195	Not Recommended