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Ball valves

Product catalog summary

Overview: The document provides technical specifications, installation instructions, and maintenance guidelines for Series 02 – Model SFF ball valves, suitable for non-corrosive gas distribution networks such as natural gas, town gas, and LPG. These valves are approved to DIN-DVGW standards and comply with the 97/23/CE (PED) Directive.

Specifications:

Available sizes: DN50 to DN200 (DN20 on request)
Working pressure: 0.5 - 16 bar
Temperature range: -10 °C to +70 °C
Body material: Cast iron GS400/12
Ball material: Chromed brass
Ball seat: PTFE + Graphite
O-Ring: NBR 70
Flanges: EN1092-2 PN16
Face to face: EN 558 Series 14

Dimensions: The document provides detailed dimensions for each valve size, including diameter, length, height, weight, and torque requirements at a pressure of 16 bar.

Installation Instructions:

Install according to valid rules on non-corrosive gas networks.
Ensure proper sealing between flanges and pipes.
Use expansion joints to prevent damage from pressure shocks and thermal expansion.
Insulate valves at sub-zero temperatures to prevent freezing damage.

Operating Conditions: The valves should be operated periodically to prevent slag precipitation. Special bleed valves are recommended for high-temperature applications to prevent damage from fluid expansion.

Maintenance: O-rings should be replaced every 24 months and PTFE seats every 48 months. Regular cleaning of the valve surface is advised to prevent dust accumulation.

Warnings: Operating temperatures below 0 °C and above 50 °C may cause damage to personnel.

Note: All data are subject to change without notice.

Catalog excerpts

BALL VALVES FOR GAS DN50 - DN200 Series 02 – Model SFF These ball valves, suitable for non-corrosive gas distribution networks [natural gas, town gas, LPG], are approved to DIN-DVGW with Id. n. NG 4313 AM0052 and comply with the 97/23/CE (PED) Directive. They are available in diameter sizes from DN50 to DN200 [from DN20 on request], full bore and equipped with EN1092-2 PN16 flanges. Face to face according to EN 558 Series 14. SFF ball valves are not suitable for choking: open or closed position is possible only. Special execution [Series 02.111] with ball and stem made in AISI 304 is also available. Equipped handle is yellow painted. TECHNICAL FEATURES .. Working pressure : 0,5 - 16 bar .. Temperature range : from -10 °C to +70 °C .. Body material : Cast iron GS400/12 .. Ball material : Chromed brass .. Ball seat : PTFE + Graphite .. O-Ring : NBR 70 DIMENSION DN 50 65 80 100 125 150 200 Ø 50 63 76 95 120 145 190 A 150 170 180 190 200 210 400 B 220 284 284 360 447 560 1000 C 165 185 200 220 250 285 340 H 125 152 166 180 225 242 320 Weight kg. 9 12,2 15,5 20 28 38,5 93 Torque ÄP = 16 bar Nm 20 40 70 100 180 250 600

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INSTALLATION AND OPERATING INSTRUCTIONS Such control device shall be installed according to valid Rules and on non-corrosive gas distribution networks [natural gas, town gas, LPG] only. CONDITION OF USE Temperature min °C max °C Pressure NBR - 10 + 100 DN 20 - 200 16 bar STORAGE Keep in a dry and cool place. While storage, keep the valve fully open to avoid damages on seats [Pic. 1]. INSTALLATION Handle with care Insert the sealing between the flanges of the valve and the pipes. Make sure that the sealing is properly placed. Distance S between the flanges and valve gauge shall be equal. Do not...

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Ball valves

Ball valves

Catalog excerpts

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