Cert. No. LRQ 0963008

ISO 9001

Description

The SBP30 is a sealed balanced pressure stainless steel steam

trap with straight connections. It is unaffected by waterhammer and

is available as follows:-

Materials

No Part

1 Cover

2 Capsule

3 Valve seat

4 Strainer screen

Body

5

Flanges PN40

Flanges ANSI

Stub ends

ASTM A240 Gr. 304

AISI 431

AISI 304

ASTM A314 Gr. 304

DIN 17100 ST 37/2

ASTM A105N

ASTM A106 Grade B

Standard unit

Also available

SBP30,

SBP30LCV,

SBP30H,

SBP30HCV,

low capacity without check valve

with 'STD' fill capsule

low capacity with check valve

high capacity without check valve

high capacity with check valve

Note: When placing an order always state capsule fill.

Capsule fill and operation

As standard the trap is supplied with a 'STD' type filling for operation

at approximately 12°C below steam saturation temperature.

Optionally, the trap can be supplied for sub-cooled 'SUB' operation

at approximately 24°C below steam saturation temperature.

Sizes and pipe connections

1⁄2" and 3⁄4" Screwed BSP or NPT.

1⁄2" and 3⁄4" Socket weld ends to BS 3799/ANSI B16.11 Schedule 80.

DN15 and DN20 standard flange ANSI B16.5 Class 150 and

ANSI 300, BS 4504 and DIN PN40, PN25 and PN16

Note: Carbon steel flanges are supplied as standard. Stainless

steel flanges can be supplied as an option.

Certification

The product is available with material certification to EN 10204 3.1.B

for body and cover as standard.

All certification must be requested at the time of order placement.

Limiting conditions (ISO 6552)

Maximum design conditions

PMO - Maximum operating pressure

TMO - Maximum operating temperature

PMA - Maximum allowable pressure

TMA - Maximum allowable temperature

Cold hydraulic test pressure

Standards

400

285

250

200

100

0

*PMO

A - B

A - C

A - D

A

The cover (and flanges when specified) is welded to the body using

the TIG process. Welds are approved in accordance with ASME

Section IX and BS EN 288.

0

10

20

30*

40

50

Pressure bar g

The product must not be used in this region.

The product should not be used in this region or beyond

its operating range as damage to the internals may occur.

Maximum operating pressure 30 bar g.

Screwed, socket weld and flanged ANSI 300.

Flanged BS 4504 PN40.

Flanged ANSI 150.

ANSI 300

30 bar g

285°C

50 bar g

400°C

75 bar g

Steam

saturation

curve

D

C B

Steam traps

Sealed

SBP30

Sealed Balanced Pressure Thermostatic Steam Trap

SBP30

1

2

4

3

5

5.8.1

check valve

SBP30LCV

SBP30HCV

Material

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Carbon steel

Carbon steel

Schedule 40 pipe to

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.

© Copyright 2004

Operating range

TI-P120-01

ST Issue 6

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