Disc Bottom Outlet Valves KEGELBODENVENTILE SchuF Valve Technology GmbH phone: +353 (0)21 4837000 fax: +353 (0)21 4837030 [email protected] Fetterolf SchuF do Brazil Ltda phone: +55 19 3936 9090 fax: +55 19 3935 3215 [email protected] SchuF Speciality Valves India Pvt. Ltd. phone: +91 421 2264600 fax: +91 421 2362018 [email protected]

Disc Bottom Outlet Valve – General Overview Development of Bottom Outlet Valves Bottom Outlet or Drain Valves have been extensively used in the chemical and related industries for almost 100 years. Invented by SchuF in 1923, their initial application was to replace the very simple wooden plug used to close or drain tanks, vessels or pipelines. Their introduction made it possible to drain vessels containing dangerous substances, and handle media under high pressure or temperature safely. The other key benefit for early users of Bottom Outlet Valves was the ability to ensure dead space free draining...

Disc Bottom Outlet Valve – General Overview Development of Bottom Outlet Valves Bottom Outlet or Drain Valves have been extensively used in the chemical and related industries for almost 100 years. Invented by SchuF in 1923, their initial application was to replace the very simple wooden plug used to close or drain tanks, vessels or pipelines. Their introduction made it possible to drain vessels containing dangerous substances, and handle media under high pressure or temperature safely. The other key benefit for early users of Bottom Outlet Valves was the ability to ensure dead space free draining...

Disc Bottom Outlet Valve – General Overview The disc lowering valve models 18 (different size inlet / outlet) and 24 (bigger size inlet than outlet) can be used on vessels with low mounted agitators, as it is non intrusive. Disc lowering valves can also be combined with sampling valves. Feature Overview Valve Bodies The valve bodies for all models would usually be in various stainless steel grades, but can also be provided in any available castable or weldable material. Disc rising valves (Models 19 or 25) automatically break any crust that may have formed at the bottom of the reactor as they...

Disc Bottom Outlet Valve – General Overview The disc lowering valve models 18 (different size inlet / outlet) and 24 (bigger size inlet than outlet) can be used on vessels with low mounted agitators, as it is non intrusive. Disc lowering valves can also be combined with sampling valves. Feature Overview Valve Bodies The valve bodies for all models would usually be in various stainless steel grades, but can also be provided in any available castable or weldable material. Disc rising valves (Models 19 or 25) automatically break any crust that may have formed at the bottom of the reactor as they...

Pharmaceutical and Fine Chemical Industry SchuF disc valves have seen extensive service in the bulk pharmaceutical and fine chemical industries. They are often used in the production of core active ingredient acids and vitamins. Over the past 15 years the dual pressure of rationalisation and safety & environment regulation have led to many valve developments. SchuF is at the forefront of these developments with a number of innovations: ■ Expandable blow up seat (to fill potential dead spaces) Dimensions Example for GMP Compliant 25 BF Good Manufacturing Practice (GMP) Valves SchuF offers a complete...

Pharmaceutical and Fine Chemical Industry SchuF disc valves have seen extensive service in the bulk pharmaceutical and fine chemical industries. They are often used in the production of core active ingredient acids and vitamins. Over the past 15 years the dual pressure of rationalisation and safety & environment regulation have led to many valve developments. SchuF is at the forefront of these developments with a number of innovations: ■ Expandable blow up seat (to fill potential dead spaces) Dimensions Example for GMP Compliant 25 BF Good Manufacturing Practice (GMP) Valves SchuF offers a complete...

Choosing the appropriate Disc Bottom Outlet Valve Disc Bottom Outlet Valve Specifications Standard ■ Are lower stem sealing forces required? ■ Are there space restrictions? 304, 316 L, Duplex, Hastelloy, Monel, Titanium, Nickel, Inconel, Incoloy, etc. ■ Is short travel advantageous? Valve lining PTFE, glass, ceramic or rubber ■ Are low initial and maintenance costs a factor? ■ Is the valve size above 4”? Glass lined, hard faced, tantalum clad, PTFE and all materials under ”Body-Optional” Hast C 276 and all materials under ”Body-Optional” Stainless steel, replaceable PTFE lined and all materials...

Choosing the appropriate Disc Bottom Outlet Valve Disc Bottom Outlet Valve Specifications Standard ■ Are lower stem sealing forces required? ■ Are there space restrictions? 304, 316 L, Duplex, Hastelloy, Monel, Titanium, Nickel, Inconel, Incoloy, etc. ■ Is short travel advantageous? Valve lining PTFE, glass, ceramic or rubber ■ Are low initial and maintenance costs a factor? ■ Is the valve size above 4”? Glass lined, hard faced, tantalum clad, PTFE and all materials under ”Body-Optional” Hast C 276 and all materials under ”Body-Optional” Stainless steel, replaceable PTFE lined and all materials...

Industry Application Case Studies for Disc Valves SchuF Valve Portfolio PTA Application Case Study Alumina Service Case Study A major North American producer of PTA faced a problem, which had caused a critical PTA process line to run inefficiently. The customer had installed ball valves at the entrance to transfer lines between crystallisers which regularly got stuck due to build up of slurry around and in the ball itself. SchuF resolved the problem by providing a self draining Disc BOV with integrated flushing and no dead space. The combination of a dead space free connection and flushing eliminated...

Industry Application Case Studies for Disc Valves SchuF Valve Portfolio PTA Application Case Study Alumina Service Case Study A major North American producer of PTA faced a problem, which had caused a critical PTA process line to run inefficiently. The customer had installed ball valves at the entrance to transfer lines between crystallisers which regularly got stuck due to build up of slurry around and in the ball itself. SchuF resolved the problem by providing a self draining Disc BOV with integrated flushing and no dead space. The combination of a dead space free connection and flushing eliminated...