Direct steam injection humidifiers - Spirax Sarco - (Version JPG) - Page n° 8 - PDF Catalogue | Technical Documentation

Technical information

Single lance

Assembly information

Where Spirax Sarco supply the steam control equipment, the separator and valve would be dispatched assembled. Alternatively, the separator, valve and actuator can be dispatched fully assembled when requested, to simplify final installation.

Actuators can be pre-commissioned if the control signal is known. When the steam control is not part of the humidifier order, the piping components will be supplied partly assembled to the separator, for final assembly by the installer.

The separator and each lance are supplied with 2 x 8 mm O / D tube compression fittings (5): 1 for the tracer supply take-off from the top

of the separator, 1 each for the inlet and outlet connections

for the lance heating circuit and 1 for the inlet to the tracer drain trap (10).

A Spirax Sarco balanced pressure thermostatic trap (10) type %" MST21 (E) should be used for this application.

The preheater in the lance can be supplied with steam direct from the separator at the using steam pressure as shown, or alternatively from an independent source up to a maximum of 4 bar g.

The separator drain (Q) should be fitted with a Spirax Sarco float trap (with automatic air vent) to continuously discharge collected condensate.

Typical specification

The humidifier shall be a Spirax Sarco S.I. type of the direct steam injection design, having a stainless steel twin section separator with internal cyclonic and baffle moisture separation to provide dry saturated steam.

The injection lance in stainless steel shall be steam preheated, and utilise stainless steel nozzles.

The control valve shall be a Spirax Sarco

2-port valve with a spring reserve electric actuator

suitable for a 24 Vac supply.

e e e o e

2 3

Multiple lances ⁴-

Materials


1	Separator	Shell	Stainless steel 304 (S14 / S11)*
1	Separator	Internals	Stainless steel 304 S11*
		Body	Stainless steel BS 3146 ANC3B*
		Tracer tube	Stainless steel 304L*
2	Lance	Main tube	Stainless steel 304L*
		End cap	Stainless steel 304 S11*
		Spring clips	Stainless steel 304 (S14 / S11)*
	Nozzles		Stainless steel - standard*
4	Pipe fittings		Malleable iron*
5	Compression fittings		Bright zinc plated mild steel
5	Compression fittings		Optional stainless steel 316L
6	Pre-heat tracer pipe 8 mm O / D tube - ^Spirax ^Sa\|rco ^or ^v ^y customer to supply
	Name-plate		Aluminium
8	Actuator	See specific installation and maintenance
8	Actuator	instructions for model supplied
9	Valve	LE31 and LE33 CI DIN 1691 GG20
9	Valve	KE63	Stainless steel DIN 17445 4581
10	Tracer system	MST21(E)	Stainless steel
11 Lance interconnecting pipework - installer to supply
12 Escutcheon plates			Galvanised steel
13 FT14 drain trap			SG iron DIN 1639 GGG40

Some of the products shown may not be available in certain markets.

I a

* 316L Stainless steel option available

Spirax-Sarco Limited, Charlton House, Cheltenham, Gloucestershire, GL53 8ER UK. Tel: +44 (0)1242 521361 Fax: +44 (0)1242 573342 E-mail: Enquiries@SpiraxSarco.com Internet: www.SpiraxSarco.com

^spiraAarco

SB-P795-05

CH Issue 6

Direct steam injection humidifiers - Spirax Sarco - #8

Cooler, Steam flow-meter, Bourdon tube pressure gauge, Sensor, Filter