Sight Flow Indicators

T-Series Threaded Sight Flow Indicator

Threaded spring-paddle indication for gas and liquid service

The T-Series uses a spring paddle for easy observation of flow in any direction, with double-window, double-glass and protected-glass configurations available.

CE 2810Marking options available
IECEx / ATEXExplosion-proof certification option

TB-DP — Protection fence

TA — Threaded type

TB — Double window

Service and indication

Compatible gas and liquid service for industrial and water-treatment systems
Spring-paddle indication visible through tempered-glass windows
Flow may travel horizontally in either direction or vertically upward or downward

Technical data

Materials and temperature

Body: SS304, SS316 or SS316L
Paddle and spring: SS316
Gauge: Tempered glass
Gasket: Teflon, Gore-Tex, Graphite or Sigma 533
Maximum temperature: 150°C with Teflon; 300°C with Gore-Tex
TA gasket restriction: Gore-Tex, Graphite and Sigma 533 are unsuitable for TA Type

Pressure and options

TA maximum pressure: 10 kg/cm² at 25°C water
TB / TB-DG / TB-DP pressure: 15, 25 or 40 kg/cm² at 25°C water
Protection fence: Optional SS304 external protection
External tempered glass: Optional four-piece protection
Explosion-proof type: 15A to 50A only; 16 kg/cm²
Certification: IECEx and ATEX options with temperature classification

Dimensions and mounting

Dimensions in millimetres. Mounting positions are shown alongside the model drawings; dimension data is below.

TA side and front drawings with H and L dimension arrows — **(A) TA Type**

TB side and front drawings with H and L dimension arrows — **(B) TB Type**

TB-DP protection-fence section drawing retaining gasket, bolt, cover and tempered-glass labels — **(C) TB-DP — Protection fence**

TB-DG double-glass section drawing — **(D) TB-DG — Double glasses**

T-Series permitted horizontal and vertical mounting positions — **Permitted mounting positions**Horizontal flow in either direction or vertical flow upward or downward.

T-Series dimensions
Dimension	15A	20A	25A	40A	50A
TA — L	114	114	114	130	150
TA — H	72	72	72	120	136
TB — L	114	114	114	130	150
TB — H	72	72	72	115	129

Ordering information

Choose your options to build an enquiry reference.

1. Model

2. Body material

3. Connection size

4. Connection thread

5. Gasket material

6. CE 2810 mark request

7. Maximum working pressure

8. Explosion-proof certification

9. Temperature classification

Selected referenceChoose one option from each field

Request a quote

Select all options to request a quote.

Specifications are general selection guidance. Confirm materials, connection standards, operating temperature and pressure with Sightflow before placing an order.