Spirax Sarco - Catalogo Agosto 2017

Pipeline ancillaries

Sight glasses

Steam

saturation

curve

7.9.5

ISO 9001

TI-P130-11

ST Issue 5

Cert. No. LRQ 0963008

Description

The SG13 is a maintainable brass multi-window sight glass with a

cylindrical viewing window and screwed connections. The sight

glass monitors the discharge downstream of steam traps in

pressurised condensate return lines. It is screwed directly into the

steam trap providing a modular monitoring system, thus eliminating

the need for a connecting nipple, minimising joints and potential

leak paths.

The sight glass can also be installed in process lines to provide a

visual indication of flow.

Standards

This product fully complies with the requirements of the European

Pressure Equipment Directive 97/23/EC.

Certification

This product is available with certification to EN 10204 2.2.

Note: All certification/inspection requirements must be stated at

the time of order placement.

Sizes and pipe connections

1⁄2", 3⁄4" and 1" screwed BSP male taper/female parallel to BS 21

or screwed NPT male/female to ANSI B 1.20.1.

Pressure / temperature limits

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3 4

SG13

Brass

Sight Glass

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Pressure bar g

The product must not be used in this region.

Body design conditions

PMA Maximum allowable pressure @ 130°C

TMA Maximum allowable temperature @ 13.5 bar g

Minimum allowable temperature

PMO

Maximum operating pressure

for saturated steam service

TMO Maximum operating temperature

Minimum operating temperature

PN16

16 bar g

200°C

-20°C

13 bar g

200°C

0°C

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

Note: For lower temperatures consult Spirax Sarco.

PTMX Maximum test pressure (steam service)

Kv value

Size

For conversion:

1⁄2"

3⁄4"

2.5

Cv(UK) = Kv x 0.963

13 bar g

2.5

Cv(US) = Kv x 1.156

Materials

No. Part

1 Body

2 End connection

3 Sight tube gasket

4 Sight glass tube

Material

Brass

Virgin PTFE/flurocarbon

Borosilicate glass

BS 2874 CZ 121

EN 12165 CW617N

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.