Spirax Sarco - Catalogo Agosto 2017

Pipeline ancillaries

Sight glasses

Steam

saturation

curve

7.9.7 TI-P130-01

ST Issue 9

SG253

Sight Glass

Description

The SG253 is an SG iron double window sight glass with flanged

connections.

Standards

This product fully complies with the requirements of the European

Pressure Equipment Directive 97/23/EC and carries the

mark

when so required.

Certification

This product is available with a Typical Test Report and is also

available with certification to EN 10204 3.1 if specified.

Note: All certification / inspection requirements must be stated at

the time of order placement.

Sizes and pipe connections

DN15, DN20, DN25, DN32, DN40 and DN50

Flanged EN 1092 PN25 and BS 1560 ASME (ANSI) Class 150.

Pressure / temperature limits

��

Pressure bar g

The product must not be used in this region.

A - B Flanged EN 1092 PN25

A - C Flanged BS 1560 ASME (ANSI) Class 150.

Body design conditions

PMA

Maximum allowable

pressure

TMA

Maximum

allowable temperature

Minimum allowable temperature

PN25 and ASME (ANSI) 150

PN25

25 bar g @ 100°C

ASME 150 17.2 bar g @ 35°C

PN25

280°C @ 18 bar g

ASME 150 280°C @ 10 bar g

PMO

Maximum operating pressure

for saturated steam service

PN25

-10°C

21 bar g

13.8 bar g

280°C

0°C

38 bar g

30 bar g

21 bar g

13.8 bar g

ASME 150

TMO Maximum operating temperature

Minimum operating temperature

Note: For lower temperatures consult Spirax Sarco.

Designed for a maximum

cold hydraulic test pressure of:

PTMX

Maximum test pressure

(steam service)

PN25

ASME 150

PN25

ASME 150

Material

No. Part

Body

Cover

Window

Gaskets

Cover bolts

Steel

BS 3692 Gr. 8.8

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.

Material

SG iron

Borosilicate glass

Reinforced exfoliated graphite

DIN 1693 GGG 40.3

DIN 7080