catalogue search
P. 01
P. 02
P. 03
P. 04
|
|
|
|
You may also be interested in
Filter, Air humidifier, Temperature sensor, Cooler, Heat recovery system
Text version of the page
| | |||||||||||||||||||
| Operating ranges for firesafe ball valves | |||||||||||||||||||
| | |||||||||||||||||||
| CD Z3 "TO CD Q. E | 310 250 200 150 100 50 0 | 0 H | PN flanged versions Pressure psi g 100 200 300 400 500 | Screwed, welded and ANSI flanged versions Pressure psi g 0 K 100 200 300 400 500 600 700 800 900 | |||||||||||||||
| | |||||||||||||||||||
| 500 400 300 200 100 | 310 p 250 | -500 -400 -300 -200 -100 H | e 3 -o r ur e | ||||||||||||||||
| 3 ■o r ur e | re Z3 er p | 200 150 | |||||||||||||||||
| 100 50 | |||||||||||||||||||
| E | 0 | ||||||||||||||||||
| | |||||||||||||||||||
| 0 | 5 | 10 | 15 20 25 Pressure bar g | 30 35 | 40 | 0 | 10 20 30 40 Pressure bar g | 50 | 62 | ||||||||||
| | |||||||||||||||||||
| The product must not be used in this region. The product should only be used for short periods of time in this region. A-B-C M31F ISO: PN16 A-D-E M20S: PN40 H-J-E M20H: PN40 F-G-C M10F and M10F ISO: PN16 | I I The product must not be used in this region. I | The product should only be used for short periods of time in this region. A-B-C M31F ISO and M40F ISO: ANSI 150 A-D-E M20S, M31F ISO and M40F ISO: ANSI 300 F-G-H M10F and M10F ISO: Screwed, SW and BW F-J-C M10F and M10F ISO: ANSI 150 F-G-E M10F and M10F ISO: ANSI 300 K-L-C M20H: ANSI 150 K-M-E M20H: ANSI 300 | ||||||||||||||||||
| | |||||||||||||||||||
| How do Spirax Sarco firesafe ball valves work | |||||||||||||||||||
| | |||||||||||||||||||
| 1 | Graphoil stem seal | / Graphoil stem seal | 3 | Graphoil stem seal | |||||||||||||||
| | |||||||||||||||||||
| Stem | Stem | Stem Antistatic stem seal is destroyed | |||||||||||||||||
| Antistatic stem seal R-PTFE seats | Antistatic stem seal R-PTFE seats | ||||||||||||||||||
| | |||||||||||||||||||
| Body gasket (graphoil) | Ball | Body gasket (graphoil) | Ball | ||||||||||||||||
| Ball | |||||||||||||||||||
| | |||||||||||||||||||
| Secondary metal surface | |||||||||||||||||||
| | |||||||||||||||||||
| In normal working conditions, the ball rests against the R-PTFE seals ensuring total closure. | When the valve is submitted to temperature above the limits R-PTFE can withstand, the seat becomes deformed and renders the R-PTFE to extrusion. | Once the R-PTFE has been totally destroyed, the ball will come to rest firmly against the metal seat in the cap, providing a metal-to-metal closure. This secondary seat in the cap, that has been machined with the same radius as the ball, ensures the valve will operate to international standards. | |||||||||||||||||
| | |||||||||||||||||||
| Note: Graphoil stem seals prevent any fluid emission through the stem to atmosphere in the event of fire. Accessories A wide range of accessories are available to suit all applications; positioners, handwheels, limit switch boxes and solenoid valves. Some of the products may not be available in certain markets. 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 © Copyright 2004 Spirax Sarco is a registered trademark of Spirax-Sarco Limited | |||||||||||||||||||
| | |||||||||||||||||||
| spirax | |||||||||||||||||||
| | |||||||||||||||||||
| SB-S39-08 | ST Issue 1 | ||||||||||||||||||
| | |||||||||||||||||||