Vista ‘Ball’ Type Flow Indicator 

This sight flow indicator is ideal for you to visually check the flow, presence, colour and condition of a liquid, gas or condensate.

¨          High quality robust design

¨          Pressures up to 16 bar

¨          Temperatures up to 200°C

¨          Short lead times

¨          The lowest prices in the UK

¨          Designed and manufactured in the UK.

Application

The Vista ‘Ball’ is a single sided stainless steel indicator that can be used on pipe sizes from 8mm to 40mm (¼” to 1 ½”).  The white PTFE ball rises when flow starts and is clearly visible from distances.  The indicator must be installed horizontally with the glass dome positioned upwards. 

Applications include:

·           Maintaining demineralised water rinsing essential to electronics components manufacture

·           Showing the presence of condensate in steam return lines

·           Indicating chemical dosing on water treatment plant

·           Ensuring that flow of cooling water is maintained to specialised medical equipment

·           Detecting changes in colour and condition of liquids during processing

Construction

The bodies are cast in high quality 316 stainless steel.

The glass window is held in place by a stainless steel clamp ring and sealed with a Viton O’Ring, giving superior protection.

The sight glasses can be supplied with screwed connections to NPT, BSP parallel or taper.

Quality

All Hamberflow indicators are manufactured to the highest standards.

The quality system is independently audited by BSI and certified to ISO 9000.

Full material traceability is maintained, material certificates and pressure test certificates are supplied on request.

Materials of Construction

Body - Stainless steel BS1540-316-C16

Clamp Ring - Stainless steel BS970-302-S25

Ball - PTFE

Glass Dome - Annealed Borosilicate

O’Ring - Viton

Gasket - Klingersil C4400

Fasteners - Stainless steel

Flow Requirements

Size	Minimum Flow	Out of Socket	Pressure Drop - 2 m /  sec
(mm)	(l/min)	(l/min)	(bar)
8	0.3	1.5	0.1
10	0.3	1.5	0.1
15	0.3	1.5	0.1
20	2.5	5.0	0.2
25	4.0	8.0	0.2
40	11.0	23.0	0.3

Dimensions and Weights

Bore Size	Weight	Overall Length ‘A’	Width (Clamp) ‘B’	Overall Height ‘C’
mm (inch)	(kg)	(mm)	(mm)	(mm)
8  (1/4)	0.72	76	60	81
10  (3/8)	0.70	76	60	81
15  (1/2)	0.65	76	60	81
20  (3/4)	1.35	89	60	100
25  (1)	1.25	89	60	100
40  (1 1/2)	2.50	118	70	126