Pipeline ancillaries

Diffusers

ISO 9001

TI-P155-06

ST Issue 2

Cert. No. LRQ 0963008

Description

The Spirax Sarco diffuser is a compact unit designed to be fitted to

the outlet of steam traps discharging into flooded condensate return

lines. It reduces the problem of noise and waterhammer when the

flash steam formed on discharge from the steam trap condenses

due to rapid cooling.

Sizes and pipe connections

1⁄2" and 3⁄4" screwed BSP

1⁄2" socket weld ends to BS 3799 Class 3000

Limiting conditions

Maximum body design conditions

PMA - Maximum allowable pressure

TMA - Maximum allowable temperature

PMO - Maximum operating pressure

TMO - Maximum operating temperature

Designed for a maximum cold hydraulic test pressure of 60 bar g

Operating range

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Materials

No. Part

1

Case

2

End boss

3

Internals

Dimensions

Size

A

DF2

Diffuser

PN40

40 bar g

400°C

32 bar g

400°C

2

1

3

2

Steam

saturation

curve

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Pressure bar g

The product must not be used in this region.

Material

Stainless steel

Stainless steel

Stainless steel

ASTM A240 Gr. 304

ASTM A351 CF8

ASM A580 Gr. 304

B

1⁄2"

74

40

27

0.3

The DF2 should be fitted on the outlet side of the steam trap

ensuring that the directional arrow on the body is in the flow direction.

How to order

Example: 1 off 1⁄2" Spirax Sarco DF2 diffuser, screwed BSP.

C

Weight

Installation

3⁄4"

74

40

32

0.3

B

A

C

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 2001

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