Catalog excerpts
PTFE SLEEVED PLUG VALVES
Open the catalog to page 1Quality' Assurance pro9rammeUK**"*** ^ _ Hly Management System al: Galli & Cassina S,p,A, Via Driwa, 30/32 Solaro - Milana, Italy has. been apyirtnuiri by Uoyd'y R^gnter Quality Assurance-to tre fallo-Aing Quality Managerneni Syyimi Stondonft-ISO 9001:2000 EM ISO 9001:2000 UNI EN ISO 9001:2000 The Quality Mgnatjamant System is aoohcable 1o: Design. marwfarturvig and stotkhaldmg at ptug valves, Including after sals taniicK, in eartnjn, Mtoy and special advy From 11 if to 33“ (DN 33 to BN 80 class rating up to 25DQ lbs tup to PM 42 Ok from 2* to 10* class rating up to Al 1300(1, sight...
Open the catalog to page 2GALLI&CASSINA Profile Galli&Cassina is a prominent Italian Company mainly involved in the manufacture of a complete range of lubricated and non lubricated Plug Valves. It is located in Solaro near to Milano, with extensive offices and workshop covering 12000 sq. mt. area including 4500 sq. mt. of covered space. Since its foundation in 1919, Galli&Cassina has been taking part to the safety increase in refineries, chemical plants and gas pipelines all over the world, building its reputation on high quality workmanship as well on the reliability of its products. Quality Assurance System. After...
Open the catalog to page 3Patterns Galli&Cassina plug valves are available in four different patterns. The pattern indicated basic information about the valve in terms of end dimension (according to API 6D, BS 5353, ANSI B16.10 and DIN 3202/F1) & the size of the flow port through the valve. Short Pattern Regular Pattern Short Pattern Plug Valves have compact face to face Regular Pattern Plug Valves have longer face to face dimensions (like a Gate Valve) and port areas of 40% to dimensions and port areas of 50%. 50% of a Full Bore plug valve. This configuration provides minimal loss of flow while...
Open the catalog to page 4PTFE Sleeved Plug Valve Two Way Company Profile Patterns Applicable Standard-Specification PTFE Sleeved Plug Valve Two Way • Main parts materials • Design Features • Seaking to atmosphere • Special Valve Requirements • Material Specification Two Way Class 150 Two Way Class 300 Two Way Class 600 Two Way Class 900 Three Way Class 150 Three Way Class 300 Two Way Jacketed Class 150 Two Way Jacketed Class 300 Three Way Jacketed Class 150 Pressure - Testing WARNING PTFE (TFE) as used for seats and seals in these valves gives off toxic fumes when incinerated. We have endeavoured in this catalogue...
Open the catalog to page 54 Gasket Flexible graphite + stainless steel, PTFE
Open the catalog to page 6Design Features Body design A high standard of performance is achieved by intimate contact between plug and the firmly fixed PTFE sleeve in the body and by separate atmospheric seals. The PTFE sleeve serves as the seat for the valve plug thus eliminating contact of two metal surfaces. Turning effort is low and galling is avoided. The design also permits the use of any body/plug material combination. Positive shut-off is ensured and the valves are free from regular maintenance. PTFE has a natural tendency to flow under temperature and pressure. In the G&C valve PTFE flow is prevented by...
Open the catalog to page 7Sealing to atmosphere The primary seal to atmosphere in the G&C valve is the PTFE seat. When valves have been installed for a considerable time on a difficult service it can be a problem to achieve a 100% seal on the seat due to wear. The sealing qualities of the G&C valve are such that in these conditions the valve will continue to seal to atmosphere. In addition to these the G&C valve has a special feature which ensures total sealing to atmosphere even if the sleeve is badly damaged. In the event of a badly damaged sleeve, experience has shown that the plug has insufficient resistance to...
Open the catalog to page 8Special Valve Requirements Firesafety G&C sleeved plug valves can be supplied fire safe designed in accordance with API 607. Anti-static A build-up of static electricity around the plug can be caused by either current in the line or by the plug rubbing against the PTFE sleeve. When an anti-static version is required, a ring is inserted into a groove in the adjusting screw which creates an electrical contact between the plug and the body. Purge connections Bodies of G&C valves can ben supplied with one or two purge connections, so that the inside of the valves can be cleaned when...
Open the catalog to page 9How to Order G&C valves have a five digit Figure Number for your particular requirements. When ordering threeway valves please specify port arrangement as detailed on page 14. Screwed valve Flanged DIN Flanged Jacketed DIN Flanged ANSI 150 Flanged Jacketed ANSI 150 Flanged ANSI 300 Flanged Jacketed ANSI 300 Flanged ANSI 600 Flanged ANSI 900 Twoway Threeway Fourway Twoway (with oversize flanges) Three (with oversize flanges) Wrench Gear Pneumatic Actuator Electric Actuator Special operation Bare Stem Body Stainless Steel Carbon Steel Carbon Steel Special materials Plug Stainless Steel...
Open the catalog to page 10ANSI Class 150 (PN20) The face-to-face dimensions of these valves conform with ISO DIS 5752 (Short) and ANSI B16.10 Class 150. WRENCH OPERATED GEAR OPERATED For ordering purposes complete the figure number by referring to page 8
Open the catalog to page 11ANSI Class 300 (PN50) The face-to-face dimensions of these valves conform with ISO DIS 5752 (Short) and ANSI B16.10 Class 300. WRENCH OPERATED GEAR OPERATED Other size upon request. For ordering purposes complete the figure number by referring to page 8
Open the catalog to page 12The face-to-face dimensions of these valves conform with ISO DIS 5752 (Regular) and ANSI B16.10 Class 600. WRENCH OPERATED GEAR OPERATED Other size upon request. For ordering purposes complete the figure number by referring to page 8
Open the catalog to page 13ANSI Class 900 (PN150) The face-to-face dimensions of these valves conform with ISO DIS 5752 (Regular) and ANSI B16.10 Class 900. WRENCH OPERATED GEAR OPERATED Other size upon request. For ordering purposes complete the figure number by referring to page 8
Open the catalog to page 14PTFE Sleeved Plug Valves Three Way
Open the catalog to page 15Port arrangements with G&C Threeway Valves
Open the catalog to page 16ANSI Class 150 (PN20) The face-to-face dimensions of these valves conform with ISO DIS 5752 (Short) and ANSI B16.10 Class 150. Other size upon request.
Open the catalog to page 17