Resilient-seated ball valves
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Memoryseal Resilient-seated ball valves TM ASME classes: 150 – 600 Sizes: NPS ¼ –24 (DN 8 – 600) WOG: 600 –2000

Velan’s profile Velan AT A GLANCE Product line A world-leading range of valves across all major industrial applications: •• Cast steel gate, globe, check, and ball valves •• Forged steel gate, globe, check, and ball valves •• Triple-offset butterfly valves •• Knife gate valves •• Severe service valves •• Bellows seal valves •• Steam traps Quality All major certifications and approvals •• ASME N stamp and NPT for nuclear valves (since 1970) •• ISO 9001 (since 1991) Currently certified to ISO 9001:2008 •• PED •• GOST (TR and RTN) •• API 6A and API 6D •• TA-Luft •• Quality programs fully...

Velan’s gLObal Network Head office • 16 production facilities • 5 plants in North America • 6 plants in Europe • 5 plants in Asia Montreal, Canada Velan Inc. • 5 stocking and distribution centers • Hundreds of distributors worldwide • Over 60 service shops worldwide Manufacturing Plants Distribution centers North America Montreal, Canada Velan Inc., Plant 1 Lyon, France Velan S.A.S. Ansan City, South Korea Velan Ltd., Plant 1 Granby, Canada VelCAN Montreal, Canada Velan Inc., Plant 2 and 7 Mennecy, France Segault S.A. Ansan City, South Korea Velan Ltd., Plant 2 Granby, Canada Velan Inc.,...

HIGH PERFORMANCE MemoryseaL BALL VALVES TM SB-150/300/600 ASME spilt-body, full port: NPS 1⁄2   –24 (DN 15–600), regular port: NPS 2 –24 (DN 50–600), live-loaded, flanged (pages 12–15). RATING ASME class 150 ASME class 300 ASME class 600 Steam 150(1) Steam 250 (1) TE-150/300/600 ASME top-entry, full port: NPS 3⁄8 –6 (DN 10–150) regular port: NPS 1⁄2   –6 (DN 15–150) live-loaded, double packed, bellows seal, threaded, socket weld, butt-weld or flanged (pages 18-23). UB-150/300 ASME NPS 1⁄2 –12 (DN 15–300) unibody, regular port, flanged, ISO 5211 (pages 16–17). EE-1000 NPS 1⁄4 –2 (DN 8–50)...

A comprehensive ball valve line capable of handling a wide variety of liquids and gases at low, medium, and high pressures Velan Memoryseal ball valves can be equipped with electric, pneumatic, hydraulic or gear actuators. TM See pages 35 to 43 for actuator sizing, torque requirements and technical data. For Securaseal metal-seated ball valves, see special catalog VEL-MS. ® DESIGN AND TESTING STANDARDS AND SPECIFICATIONS Pressure–temperature shell ASME B16.34 rating valve See seat materials (page 39). Shell wall thickness Flange dimensions Valve testing Fire safe testing Installation of NPS...

VELAN MemoryseaL BALL VALVE TECHNOLOGY TM Velan concave-convex flexible, in-tension seats with induced sealing memory Before assembly SEALING MEMORY The Velan sealing memory is induced into the seats during the assembly process. When the ball is inserted into the valve body during assembly, it partially flattens the seat, creating a tensile stress in the center of the seat. As a result, the seat core increases in diameter from D1 to D2 and, like a stretched elastic band, pushes against the ball. This ensures reliable sealing even at vacuum or low pressures. SEAT STRENGTH A seat in-tension...

COMPETING DESIGNS Velan in-tension flexible Seat Competitive flexible Seat FLEXIBLE AREA 4 Larger seat with smaller 5 Smaller, weaker seat 5 Much smaller seat 4 Larger flexible area = 5 Minimal flexible area, 5 No flexibility, high compres- 4 Seat in-tension, stronger, 5 Seat in compression, only 5 Seat in compression, only 4 Greater flexible strength = 5 Can leak under low pressure tightness on low-pressure service 4 Greater flexibility = lower torque 5 No flexibility, high compression, 4 Greater flexibility = better 5 Minimal flexibility, weak 5 No flexibility = short cycle life Before...

velan E-20 zero leakage packing chamber design SB-150/300/600 Specially machined gland provides self-alignment to packing flange Adjustable self-aligning packing flange Upper stem guide prevents side thrust Ptfe cup and cone packing rings Lower stem guide prevents side thrust Ball-to-stem static grounding standard Ptfe thrust washer Blowout-proof stem The E-20 packing Chamber outperforms competitive designs • E-20 unique packing chamber design maintains low emissions control for long lasting high cycle life. • Self-aligning packing flange is independent of gland for equal compression of...

velan E-20 zero leakage packing chamber design UB-150/300, NPS 2–12 (DN 50–300) 4-way seal Adjustable self-aligning packing flange Specially machined gland provides self-alignment to packing flange Upper stem guide prevents side thrust Fire-safe graphite packing Seal-3 O-rings Seal-4 (optional TA-LUFT) Live-loading with 2 Belleville washers Anti-extrusion rings (4 places) Ptfe cup and cone packing with Ta-luft accreditation Seal -2 Lower stem guide prevents side thrust Ball-to-stem and stem-to-body static grounding as standard to BS 5351 Ptfe thrust washer/ stem seal Seal-1 A unique HIGH...

superior BODY SEAL DESIGNS All body seal designs incorporate a secondary metal-to-metal contact area in addition to the primary gasket designs. Sealing designs for our split-body and top-entry use a totally enclosed spiral wound SS 316 graphite gasket for the tightest seal in the valve industry. The unibody, end-entry and one-piece valves use solid PTFE seals with metal-to-metal back-up contact. ASME Section 8 bolting Metal-to-metal contact TOP-ENTRY TE-150/300/600 ASME Section 8 bolting Totally enclosed SS 316 spiral wound graphite gasket Ball Memoryseal seat ASME Section 8 mid flanges...

TESTING fire tests manufacturing tests All Memoryseal ball valves have successfully passed API 607 Rev. 5/ISO 10497(1) using graphite packing. Certificates available upon request. TM All Memoryseal ball valves are tested in accordance with API 598 and are bubble tight. TM (1) PTFE-based seat materials emissions testing LOW FUGITIVE EMISSIONS Based on extensive laboratory tests and field experience, we guarantee that standard Velan ball valves will provide low emission service on gaskets and stem seals under normal operating conditions, provided that gland and body-bonnet bolting is torqued...