Pure Steam Generator - Spirax Sarco

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and manufactured by Spirax Sarco. Full PID level control for safe consistent performance. Manufacturing and design standards: - UNI EN 285. - HTM 0101.
PSG

pure steam generators

PSG pure steam generators Spirax Sarco's range of pure steam generators are designed for use within the bio-pharmaceutical industry and to meet all the requisites that this industry demands. With over 100 years of experience in steam control and heat transfer technology we have acquired the knowledge and expertise to optimise the design of our PSG to ensure we provide you with pure, dry, pyrogen free steam. Spirax Sarco's range of pure steam generators will satisfy the requirements of HTM 0101 and EN 285, whilst offering you exceptionally low cost of ownership and guaranteed performance.

Manufacturing and design standards: - UNI EN 285 Designed and manufactured by Spirax Sarco

- HTM 0101 - GAMP - cGMP - ASME BPE - European Pressure Equipment Directive 97 / 23 / EEC

cGMP design and regulatory compliance

Unique optimised separation method

- ASME - Section VIII Div I - Optional FDA 21 CFR Part 11 compliance

External evaporator simplifies inspection

cGMP double tube sheet heat exchanger

Optional energy saving preheater/degasser available

Capacity range 50 to 3 000 kg/h

Optimised plant steam control and ancillaries

Full PID level control for safe consistent performance

PSG range at a glance Nominal production capacity When the pure steam pressure = 3 bar g and the plant steam pressure = 7 bar g Model

PSG50

PSG100

PSG200

PSG300

PSG400

PSG500

PSG600

PSG750

PSG1000

PSG1500

PSG2000

PSG3000

Capacity kg/h

50

100

200

300

400

500

600

750

1000

1500

2000

3000

Capacity ratio at actual operating conditions Available plant steam pressure bar g

Pure steam pressure bar g

3.5

5

1

1.03

1.58

2

0.37

3

6

7

8.5

0.78

1.21

1.64

2.05

0.29

0.62

1.00 0.53

4 5

9.5

11

1.36

1.72

2.06

0.85

1.18

1.50

1.81

0.49

0.77

1.06

1.35

0.40

0.65

0.92

6

12

Sizing example: PSG400 with a plant steam supply pressure = 8.5 bar g and pure steam pressure = 4 bar g: Nominal production capacity x Capacity ratio = 400 kg / h x 0.85 = 340 kg / h capacity Note: for accurate sizing please contact your nearest Spirax Sarco office.

Optimised design - Critical dimensions A / B / C / D optimized to eliminate carryover and improve separation.

Optional mechanical separator

- Through the employment of extensive research

B

A

based software your individual requirements are modelled to ensure the optimal design and

D

ultimate separation performance of your unit.

- Unique spray nozzle for improved centrifugal separation (Figure 1).

- No additional mechanical separation device required for nominal operating conditions.

C

Fig. 1

PSG operating principles The Spirax Sarco pure steam generator employs the 'rising film’ evaporator principle:

1. Feedwater is supplied into

Sanitary safety valve

the separation column,

Pure steam

5

dictated by PID loop level control. The feedwater circulates into the external evaporation column.

4

Pressure control

2. Plant steam is applied to

3

the evaporation column and the feedwater is vaporised.

Level control

An initial separation stage occurs removing impurities that are then eliminated via

Plant steam

2

'blowdown'.

3. The pure steam is returned to the upper region of the separation column via a number of directional and velocity changes thus removing entrained moisture.

4. The vapour continues to rise through the column, continually disengaging heavier water droplets.

Preheater Feedwater

1 Feedwater pump

Condensate

5. Pure steam is released at the outlet nozzle.

Energy saving option

Blowdown

PSG options To supplement our standard PSG we offer pre-engineered options, ensuring a solution specifically optimised for your process.

Option 1 - Energy saving and degassing Our energy saving and degassing option is an integrated solution developed for feedwater treatment in steam generation for high purity applications. This option guarantees to reduce O 2 and CO 2 content of the feedwater, increasing the system performance and product steam quality while reducing system corrosion and maintenance. The preheating ancillaries further improve the stability of feedwater temperature, elevating system efficiency, enhancing life-cycle costs and maintaining system production during surge conditions.

Option 2 - WFI production This option is available for low volume WFI production through the condensing of the product pure steam. This option incorporates our double tube sheet heat exchanger and is sized to suit the precise requirements of your pure steam and WFI production needs. A complete list of available options is detailed within the PSG Technical Information (TI) sheet available on our website, alternatively contact your local Spirax Sarco High Purity representative.

Key features and benefits Key features

Key benefit Provides pure, dry and pyrogen free steam.

Pure steam production

Pure steam condensate complies, as a minimum, with USP, EP, JP and other international Pharmacopeia standards for WFI. Exceeds HTM 0101 and EN 285 steam quality requirements.

Compliant to all International

The PSG complies with: US, European and Japanese

Pharmacopeia and Industry Standards

Pharmacopeia, FDA, ASME BPE and ISPE Baseline Guides.

Compact double tube sheet design. External heat exchanger design

Easy removal of evaporator for inspection. Increased stability during surge volumes i.e. steriliser cycles.

Efficient operation at low and high steam demand ensures steam quality. Unique separation technology Low steam velocity through separation chamber eliminating carryover.

Fully documented factory acceptance test as standard. Site acceptance test services available to aid in system Full validation documentation available

commissioning and qualification. Extensive protocol templates for Installation and Qualification activities are available.

Spirax Sarco quality components

Spirax Sarco components ensure overall system quality / integrity.

ISO 9001:2008 management system

Spare parts available worldwide with short lead times.

Steam industry leader with vast application knowledge and understanding

We guarantee to deliver your high purity steam every time.

of steam and condensate loop

Part of a dedicated high purity range from

Providing customers with a single source of supply for all your high

Spirax Sarco

purity needs.

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Some products, services or solutions may not be available in certain markets

Spirax-Sarco Limited Cheltenham UK GL53 8ER t: +44 (0)1242 521361 f: +44 (0)1242 573342 www.SpiraxSarco.com/industries/pharmaceutical.asp

SB-S93-02 CH Issue 3

© Copyright 2010 Spirax Sarco is a registered trademark of Spirax-Sarco Limited