5.2.3

Steam

saturation

curve

Steam traps

Balanced pressure

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.

© Copyright 2013

BPT13T

18

16

BPT13T and BPT13TGX

Thermostatic Steam Traps

3

17

19

12

TI-P126-03

ST Issue 6

BPT13TGX

with view glass

15

1

11

13

14

2

10

5

7

6

8

6

21

4

9

2

2

20

Description

The BPT13T is a brass bodied maintainable balanced pressure steam trap with horizontal in-line connections. It has a unique bypass

and stop valve feature built into the trap which simplifies and reduces the cost of installation. The bypass can be used simply to handle

high start-up loads or to avoid debris collecting in the steam trap, on the commissioning of new systems. The BPT13TGX has an integral

sight tube for indication of operation.

Note: When placing an order always state capsule fill.

Capsule fill and operation

Standard capsules are marked with the letter 'STD' for operation

at approximately 10°C below steam saturation temperature.

Optionally the capsule can be supplied for sub-cooled 'SUB'

operation at approximately 22°C below steam saturation

temperature or a 'NTS' fill capsule for near-to-steam operation

at approximately 4°C below steam saturation temperature.

Sizes and pipe connections

1⁄2", 3⁄4" and 1" screwed BSP

Pressure / temperature limits (ISO 6552)

Materials

No. Part

1 Body

2 End connection

3 Cap

4 Actuator

5 Spindle

6 Stem seal

7 Gland nut

8 Spring washer

9 Lock-nut

10 Ball plug

11 Seat 'O' ring

12 Valve seat

13 Main seal

14

End connection

'O' ring

15 Screen

16 Spacer plate

17 Capsule

18 Spring

19 Cap 'O' ring

20

Sight tube

housing

21 Sight tube gasket

22 Sight tube

Material

BS EN 12165 CW 617N

BS EN 12165 CW 617N

BS EN 12165 CW 617N

BS 3146 Pt2 ANC 4B

BS 970 431 S29

BS 970 303 S31

BS 6105 Gr. A4

ISO 3506-2: A2-70

BS 2874 CZ 121

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Brass

Brass

Brass

Stainless steel

Stainless steel

25% carbon filled PTFE

Stainless steel

Stainless steel

Stainless steel

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Brass (ELNP Finish)

Synthetic rubber high fluorine fluorocarbon

Stainless steel

BS 970 431 S29

25% carbon filled PTFE

Pressure bar g

The product must not be used in this region.

Synthetic rubber high fluorine fluorocarbon

Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

Minimum allowable temperature

PMO Maximum operating pressure

TMO Maximum operating temperature

PN16

16 bar g @ 120°C

200°C @ 7 bar g

-20°C

13 bar g @ 220°C

200°C @ 7 bar g

ASTM A240 TP 304

BS 1449 304 S16

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Synthetic rubber high fluorine fluorocarbon

Brass

BS 2874 CZ 121

Virgin PTF E/Flurocarbon

Borosilicate glass

BS 2056 302 S26

Minimum operating temperature

Designed for a maximum cold hydraulic test pressure of 24 bar g

0°C

Note: For lower operating temperatures consult Spirax Sarco

T

e

m

p

e

r

a

t

u

r

e

°

C