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Tank Level Gauges & Indicators

Tank level gauges with sight glasses are used for the continuous indication of the liquid level within a tank or vessel. They usually consist of a top and bottom fitting with isolation and drain cocks fitted. They are installed to the outside of the tank or vessel with tubular glass or perspex between them.

Johnson valves offer these gauges for different duties including marine, boiler house and oil tank indication with glass cut to your requirements. Protectors and guards can also be made to your requirements. 

JV190001 – Bronze Push Button, Self-Closing Marine Tank Level Gauge

The JV190001 set of bronze gauge cocks are generally used for small oil and fuel tanks in the marine industry offering the added safety of a spring-loaded self-closing valve on the bottom fitting which prevents leakage in the event of a sight glass breakage. Glass sight tube and protectors to suit are available on request.

Type
Push Button • Self-Closing • Top & Bottom Set • Drain Cock
Size & Connections
15mm (1/2″) • BSP Threaded • 13mm Sight Tube
Duty
Oil • Water
Materials
Bronze Body
Max Working Pressure
16 Bar
Max Working Temperature
100°C
Contact UsJV190001 – Bronze Push Button, Self-Closing Marine Tank Level Gauge - PDF Datasheet

JV190001 – Bronze Push Button, Self-Closing Marine Tank Level Gauge

JV190002 – Bronze Handwheel Operated Tank Level Gauge

The JV190002 set of bronze wheel operated gauge cocks are suited for general purpose applications, available in standard and lightweight patterns. The top and bottom fittings have wheel operated valves with a drain cock on the bottom fitting. The bodies are cast with lugs to carry optional guard rods. Glass sight tube and protectors to suit are available on request.

Type
Handwheel Operated • Top & Bottom Set • Drain Cock
Size & Connections
15mm (1/2″) • BSP Threaded • 13mm to 19mm Sight Tube
Duty
Oil • Water
Materials
Bronze Body • Brass Fittings
Max Working Pressure
Standard: 14 Bar • Lightweight: 9 Bar
Max Working Temperature
Standard: 200°C @ 13 Bar • Lightweight: 150°C @ 7 Bar
Contact UsJV190002 – Bronze Handwheel Operated Tank Level Gauge - PDF Datasheet

JV190002 – Bronze Handwheel Operated Tank Level Gauge

JV190003 – Stainless Steel Handwheel Operated Tank Level Gauge

The JV190003 set of stainless steel wheel operated gauge cocks are suited for general purpose applications, available in standard and lightweight patterns. The top and bottom fittings have wheel operated valves with a drain cock on the bottom fitting. The bodies are cast with lugs to carry optional guard rods. Glass sight tube and protectors to suit are available on request.

Type
Handwheel Operated • Top & Bottom Set • Drain Cock
Size & Connections
15mm (1/2″) to 20mm (3/4″) • BSP Threaded • 13mm to 19mm Sight Tube
Duty
Oil • Water • Liquids compatible with materials
Materials
Stainless Steel (316) Body • Stainless Steel Fittings
Max Working Pressure
14 Bar
Max Working Temperature
200°C @ 13 Bar
Contact UsJV190003 – Stainless Steel Handwheel Operated Tank Level Gauge - PDF Datasheet

JV190003 – Stainless Steel Handwheel Operated Tank Level Gauge

JV190004 – Bronze Sleeve Packed, Lever Operated Tank Water Gauge

The JV190004 set of gauge cocks are fitted with sleeves which can be adjusted by means of packing nuts as wear necessitates, providing easy and efficient maintenance. Both the top and bottom fittings have sleeved packed, lever-operated valves with a drain cock on the bottom fitting. The fittings can be handed right or left to suit installation. Glass sight tube and protectors to suit are available on request.

Type
Sleeve Packed • Lever Operated • Top & Bottom Set • Drain Cock
Size & Connections
15mm (1/2″) to 20mm (3/4″) • BSP Threaded • 13mm to 19mm Sight Tube
Duty
Water
Materials
Bronze Body
Max Working Pressure
17.2 Bar
Max Working Temperature
260°C @ 17.2 Bar
Contact UsJV190004 – Bronze Sleeve Packed, Lever Operated Tank Water Gauge - PDF Datasheet

JV190004 – Bronze Sleeve Packed, Lever Operated Tank Water Gauge

JV190005 – Bronze Sleeve Packed, Lever Operated Tank Water Gauge

The JV190005 set of gauge cocks are fitted with sleeves which can be adjusted by means of packing nuts as wear necessitates, providing easy and efficient maintenance. Both the top and bottom fittings have sleeved packed, lever-operated valves with a drain cock on the bottom fitting. The fittings can be handed right or left to suit installation. Glass sight tube and protectors to suit are available on request.

Type
Sleeve Packed • Lever Operated • Top & Bottom Set • Drain Cock
Size & Connections
DN15 to DN20 • Flanges drilled on request • 13mm to 19mm Sight Tube
Duty
Water
Materials
Bronze Body
Max Working Pressure
17.2 Bar
Max Working Temperature
260°C @ 17.2 Bar
Contact UsJV190005 – Bronze Sleeve Packed, Lever Operated Tank Water Gauge - PDF Datasheet

JV190005 – Bronze Sleeve Packed, Lever Operated Tank Water Gauge

JV190006 – Steel Sleeve Packed, Lever Operated Tank Water Gauge

The JV190006 set of gauge cocks are fitted with sleeves which can be adjusted by means of packing nuts as wear necessitates, providing easy and efficient maintenance. Both the top and bottom fittings have sleeved packed, lever operated valves with a drain cock on the bottom fitting. Reflex and transparent glass centre section boxes available on request.

Type
Sleeve Packed • Lever Operated • Top & Bottom Set • Drain Cock
Size & Connections
DN15 to DN25 • PN40 Flanged  • 16mm Sight Tube
Duty
Water • Liquids compatible with materials
Materials
Carbon Steel Body • Stainless Steel Spindle & Plug • Graphire Packing
Max Working Pressure
40 Bar
Temperature Range
-25°C to 425°C (saturated steam 245°C @ 36 bar)
Contact UsJV190006 – Bronze Sleeve Packed, Lever Operated Tank Water Gauge - PDF Datasheet

JV190019 – Hydrostatic Pneumatic Tank Contents Gauge

These gauges are connected to the tank by a capillary tube which enters through the top of the tank and extends to the bottom of the vessel. Incorporated in the gauges are a pneumatic pump, which has to be operated every time a reading is required, and this pump balances the static pressure head of the liquid contained in the tank against a membrane, resulting in an indication of the tank’s contents.

Type
Pump-up Pneumatic
Tank Size & Gauge Dims
Tanks up to 4.5 meters in height or diameter •  Dial approx. 150mm
Duty
Oil • Water • Liquids compatible with materials
Materials
Plastic
Reading
0 to 100% or scaled to your requirements
Remote Distance
Up to 50 meters
Contact UsJV190019 – Hydrostatic Pneumatic Tank Contents Gauge- PDF Datasheet

JV190019 – Hydrostatic Pneumatic Tank Contents Gauge