Spirax Sarco - Catalogo Agosto 2017

Pipeline ancillaries

Hosedown stations

ISO 9001

TI-P157-18

ST Issue 3

Cert. No. LRQ 0963008

Description

TCO1

Temperature Cut-out Valve

The TCO1 is a temperature sensitive device fitted downstream of

the steam / water mixing valve on 1⁄2" and 3⁄4" hosedown stations.

The TCO1 is only suitable for the 1⁄2" and 3⁄4" mixing valves. This

temperature cut-out valve activates at a temperature of 95°C to

limit the discharge of steam in the event of a system fault.

Kv value

1" = 8.5.

For conversion:

Materials

No. Part

Body

Cone

Cap

Spring

Installation

Available types:

- Included as standard in the hosedown station kit.

- Available as a retrofit pack supplied with 1" x 3⁄4" and 1" x 1⁄2" reducing

nipples to enable installation to either 1⁄2" or 3⁄4" mixing valves.

Operation - The TCO1 is not resettable and the mixing valve and

hose must be inspected and serviced before the temperature

sensitive element of the TCO1 is replaced.

Standards - This product fully complies with the requirement of

the European Pressure Equipment Directive 97/23/EC and carries

the mark when so required.

Certification - Although certification is not available manufacture

of the TCO1 is in accordance with our ISO 9000 Registration.

Sizes and pipe connections

1" screwed BSP.

Pressure / temperature limits

��

Steam

saturation

curve

��

Pressure bar g

The product must not be used in this region.

The product should not be used in this region as it will

activate and close the valve.

Cv (UK) = Kv x 0.963

Material

Bronze

Brass

Stainless steel

Cv (US) = Kv x 1.156

EN 1982 CC491K

BS 2874 CZ 114

EN 12165 CW617N

BS 2056 EN 58A

Body design conditions

PMA - Maximum allowable pressure

TMA - Maximum allowable temperature

Minimum allowable temperature

PMO - Maximum operating pressure

for saturated steam service

TMO - Maximum operating temperature

PN16

16 bar g @ 180°C

250°C @ 8 bar g

-29°C

14 bar g

95°C @ 16 bar g

Install the TCO1 between the hot water outlet of the mixing valve

and the equal tee that houses the thermometer.

Important note: The TCO1 must be installed with the end marked

'inlet' connected to the mixing valve and the end marked 'outlet'

connected to the equal tee. (These markings are stamped onto

the hexagon end connections). If the valve is installed in reverse it

will never be able to operate.

How to order

Example: 1 off 1⁄2" retrofit pack for a Spirax Sarco 1⁄2" hosedown

station.

Spare parts

Spare parts are available as indicated. No other parts are supplied

as spares.

Available spares

Element set

2, 3, 4

Always order spares by using the description given in the column

headed 'Available spares' and state the size and type of valve.

Example: 1 - Element set for a Spirax Sarco 1" TCO1 temperature

cut-out valve.

0°C

Designed for a maximum cold hydraulic test pressure of 28 bar g

Dimensions / weight (approximate) in mm and kg

Size

Weight

0.8

Minimum operating temperature

Note: For lower operating temperatures consult Spirax Sarco.

How to order spares

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.