Description; Installation - Pressure Tech THE SS-414 Series Operating And Service Manual

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1. Description

The SS-414 is a 'medium flow' piston sensed pressure reducing regulator, which incorporates

a balanced main valve to provide stable control under varying inlet pressures. The regulator

has the option of a PEEK or PCTFE seat for gas service and Tecasint or ceramic for hydraulic

service.

These regulators can operate at depths of up to 3,000 metres, either using the external

seawater pressure as a reference pressure or working within a sealed chamber to remain

completely unaffected by outside conditions.

Operating at depths of up to 3,000 metres (10,000ft), the SS414 have been designed and

manufactured specifically to produce the highest standard of results within the challenging

subsea environment and features NV or SV 1:1 ratio sensor assembly, as standard for sub-sea

applications and incorporates, the option of the following top works assemblies, dependant

of the functionality requirements:

'SR' - Spring Loaded with Reference to External Sea Water Pressure. (*Ref. 6.1.4 for

Reference Port detail, circled in red)

'SS' – Spring Loaded with Sealed Chamber to remain completely unaffected by the

external sea water environment conditions. (Without Reference port)

Pressure Equipment Directive (PED) 2014/68/EC Declaration

This equipment is designed and manufactured in accordance with Sound Engineering Practice

(SEP) Article 4, Paragraph 3 of the directive 2014/68/EC. As such, CE marking must not be

applied. The equipment is marked under section 3.3 of Essential Safety Requirements of the

directive.

Before system start-up, it is recommended that all lines should be free from any form of

contaminations, as those can affect regulator performance and functionality. all systems be

pressure tested, leak tested and purged with an inert gas such as nitrogen.

Prior to placing into service ensure that the regulator is in the fully closed position, with the

adjusting mechanism turned completely anti-clockwise.

For pre-set regulators the supply pressure should be increased gradually and also to be

mindful that downstream pressure will be present.

Check the model number reference to ensure that the pressure range complies with the

installation requirements.

Visually inspect the regulator for any signs of damage or contamination. If any foreign

materials are present and cannot be removed from the regulator, or if the threads on the

regulator appear to be damaged, please contact the office immediately to arrange for the

regulator to be returned for service.

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