NH3

Flow indicators suitable for LPG and NH3 monitoring

Flow indicators are a very important piece of equipment that allow plant operators to visually observe the liquid LPG and NH3 flow conditions to ensure safe operations in the plant or station.

Product description

Flow indicator installations provide different advantages depending on the placement in the application, and the types vary depending on the monitored products. Placing it on the upstream side of the pump, suction conditions become observable which enables speed adjustments for achieving the ultimate flow rate without cavitation. Moreover, if placed at the piping load rack, just before the loading hose, it allows the operator to stay constantly updated on pump conditions.

Material

Body: Ductile iron, stainless steel
Stem: Stainless steel
Seat: Stainless steel
Seat disc: Resilient synthetic rubber
Return spring and swing check: Stainless steel
Glass: Polished, ground, tempered and tested up to 172 bar (2,500 psi)

Specifications

Gas types: LPG (Propane, Butane), NH3 (Ammonia, Anhydrous Ammonia)
Connections: Flange, thread, weld
Type: NPT, ANSI, DIN, butt, socket
Pressure range: Up to 25 bar (362 psi)
Sizes and ranges: DN 15 to DN 100, ½" to 4"
Series available: A7794, A7796, A7624, A7616, model 6286 and EFG
Standards: UL listed, CE-PED

*Materials and specifications are subject to generalisation. Our experienced people are ready to help you find the correct fit for your application.

Features

Approved for both horizontal and vertical installation
Long lived, trouble-free operation
Easy-to-read flow indicator
Heavy-duty spring-loaded check design
High flow rates with low pressure drop
1/4" F-NPT plugged boss on top of body
O-ring glass seal for leak-tight operation
Set screws minimise loosening of glass retainer rings

Did you know?

With compressors, it can be more useful to install sight flow indicators as they provide a visual indication of when the transport or tank car is emptied so that the operation can be immediately reversed to recover the vapour

Selecting the correct indicator depends on the desired stress endurance and visibility

The sight flow indicators can be provided with dual-sided glass visuals, integral swing check or bi-directional with paddle and a flap

Heavy duty swing check with flow indicators with back-flow protection are specifically designed for pipeline systems and suitable for LPG and NH₃

Alternative products

Gas strainers

Debris and particles are the enemy of pumps, valves, engines and nozzles. Gas strainers protects them by filtering out these impurities and keeping the equipment healthy.

See our Gas strainers
Horizontal compressors

These are our largest liquid transfer capacity compressors, used in bulk transfers, barge and rail loading and unloading, pressure boosting and much more.

See our Horizontal compressors
Rotary vane pumps

Also known as sliding vane pumps, rotary vane pumps are designed to provide a constant flow of liquid for high-pressure LPG or other liquid transfers.

See our Rotary vane pumps