Control valves

Control valves

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ISO 9001

TI-P183-02

CH Issue 3

Cert. No. LRQ 0963008

STERI-TROL Clean Service

'S' series Two-port and Three-port

Control Valves - DN15 (1⁄2") to DN100 (4")

Description

STERI-TROL 'S' series are two-port and three-port control

valves manufactured using 316L stainless steel. They are

designed for mixing fluids (three-port only), and for on/off

and modulating control of clean steam, pure steam and

process fluids. The valve is operated by a pneumatic actuator

and may be interfaced with a control system using any of the

Spirax Sarco range of positioners.

Available types

SA

Two-port angle pattern design

SH

Two-port horizontal pattern design

SQ

Three-port design

Valve characteristics - options:

SAE

SHE

Equal percentage (E) - Suitable for most

modulating process control applications good

control providing at low flowrates.

SAL

Linear (L) - Primarily for liquid flow control where

SHL

the differential pressure across the valve

SQL

is constant.

Important note: Throughout this document, reference has been

made to the standard SAE control valve. With the exception

of the trim type and porting arrangement, the SAE, SHE, SAL

and SHL control valves are virtually identical.

Approvals and certification

Compliant to ASME BPE 2002.

FDA, 3A and USP26 Class VI approved sealing materials.

Designed in accordance with 3A’s and EHEDG.

EN 10204 type 3.1 certificates supplied as standard.

Surface finish certificate available on request.

Valve seating - options:

S

Metal-to-metal (as standard) - Stainless steel

V

Soft seal - White Viton to provide a tight shut-off.

Valve stem sealing - options:

E

EPDM (as standard) - 3A and FDA approved

V

White Viton - 3A, FDA and USP 26 Class VI approved

The STERI-TROL can be used with the following

actuators and positioners:

Technical data

Plug design

Leakage

Rangeability

Travel

Surface finish

Size range

DN15 to DN100

Metal-to-metal

Soft seal

Equal percentage

Linear

30:1

Electric

Pneumatic

Positioners

Refer to the

further details.

Sizes and end connections

Connections

Butt weld/tube weld, screwed, flanged and sanitary clamp

Parabolic

(0.01% of Kv)

IEC 534-4 Class VI

50:1

EL3500 and EL5600 series

PNS3000, PNS4000, PN9000E and

PN9000R series

PP5 (pneumatic) or EP5 (electropneumatic)

ISP5 (intrinsically safe electropneumatic)

SP200 (smart electropneumatic)

SP300

DN15 to DN50 (1⁄2" to 2")

DN65 to DN100 (21⁄2" to 4")

Internal (Mechanical or electro polished)

External

20 mm

30 mm

0.4 μ

< 0.6 μ

relevant actuator Technical Information sheet for

- DN15, DN20 and DN32 is not available for certain end connections - see page 14.

Notes: - Other end connections are available as detailed on page 14.

- If you require a pipe end connection which has not been mentioned within this document, please contact Spirax Sarco sales office

for further advice and information regarding availability.

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.

© Copyright 2007

DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80 and DN100

1⁄2", 3⁄4", 1", 11⁄4", 11⁄2", 2", 21⁄2", 3" and 4"

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