Richter heavy-duty ball valves – shut-off, control and drain valves – KN

Product catalog summary

Overview: This document details the specifications and features of Richter heavy-duty ball valves, including the KN, KNA, KNR, KA-N, and KK series. These valves are designed for handling highly corrosive and ultrapure media, offering a modular system with various customization options.

Specifications:

Temperature Range: -60 to +200 °C (-75 to +400 °F).
Pressure Range: Up to 16 bar (235 psi) for EN-JS 1049 body and up to 17.2 bar (250 psi) for ASTM A395 body.
Lining Materials: PFA, with options for PFA-L (antistatic) and PFA-HP (ultrapure).
Body Material: Ductile cast iron EN-JS 1049 or ASTM A395.

Product Features:

Maintenance-free ENVIPACK stem sealing.
Various ball versions, including one-piece PFA-lined ball/stem and Al2O3 ceramic ball.
Resilient PTFE seat rings for gas-tight sealing.
Universal ISO 5211 connection for actuator mounting.
External corrosion protection with epoxy coating.

Applications:

Suitable for highly aggressive fluids where stainless steel and standard plastics are insufficient.
Used in clean-room environments and corrosive atmospheres.
Applicable for ultrapure media in pharmaceutical and semiconductor industries.

Options and Customization:

Face-to-face dimensions according to ISO/DIN and ASME/ANSI standards.
Available with different lining thicknesses and materials for specific applications.
Optional features include high-purity versions, body heating jackets, and stem extensions.

Performance and Limitations:

Operating torques vary based on pressure and valve size, with recommendations for worm gear usage at higher torques.
Pressure/temperature diagrams provided for operational guidance.
Special considerations for low-temperature applications and metallic stop designs.

Specifications and Standards: The document outlines installation dimensions and approximate weights for different valve models, adhering to standards such as ANSI B16.5 Cl.150, JIS 10K, ISO 5752 series 1, DIN 3202 F1, and ASME/ANSI B16.10 short. Flanges are specified according to ISO 7005-2 and ASME/ANSI B16.5 Cl.150.

Installation Dimensions and Weights: Detailed tables provide measurements for different valve sizes, including diameter, length, height, and weight in both metric and imperial units. The tables also specify port sizes, face-to-face dimensions, and flange details.

Special Features and Custom Solutions: Richter Chemie-Technik GmbH offers customized solutions for specific problems, including ball valves with relief openings, lever extensions, stainless steel heating jackets, lockable levers, special manual actuations, and extra thick-walled linings for highly permeating media. Linings are available in antistatic and FDA-compliant materials.

Contact Information: Richter Chemie-Technik GmbH is located in Kempen, Germany, and can be contacted via phone or email for further inquiries or customized solutions.

Catalog excerpts

Richter heavy-duty ball valves – shut-off, control and drain valves – KN-1

– shut-off, control and drain valves – ISO/DIN, ASME/ANSI Lining PFA, optionally PFA-L Maintenance-free ENVIPACK stem sealing -60 to +200 °C (-75 to +400 °F) Richter heavy-duty ball val

Open the catalog to page 1

Richter heavy-duty ball valves – shut-off, control and drain valves – KN-2

Heavy duty ball valves with ENVIPACK stem sealing The ball valve family, KN, excels by offering problem solutions from a modular system. The selection of fluoroplastic linings, the large temperature/pressure range and the numerous options permit a tailor-made solution for virtually every application involving highly corrosive and ultrapure media – with more or less the same components! The standard KN/KNA modular system: 1 ISO/DIN + 1 ASME/ANSI body, 4 lining materials, 1 universal stem sealing, 4 standard ball versions. In addition, Richter´s speciality: customised special solutions. The ball...

Open the catalog to page 2

Richter heavy-duty ball valves – shut-off, control and drain valves – KN-3

Thick-walled lining, 4 ball versions Ball versions Al2O3 ceramic ball with separate stem (optional) Cavity-free TF ball for optimum draining and flushing (optional) V-control ball, high-quality flow control, play-free (optional) Vacuum (mbar) Al2O3 ball, modiﬁed seat rings PTFE or PTFE/carbon PFA-lined ball stem What are the disadvantages of lined valves with “metallic stop”? The body halves are bolted together with full metallic contact 3m . Retightening is not possible, any leak that occurs cannot be stopped. The cavity between the lining and the metallic contact also prevents the early detection...

Open the catalog to page 3

Richter heavy-duty ball valves – shut-off, control and drain valves – KN-4

Richter drain valves KA-N with ENVIPACK stem sealing Drain valves are compact, sturdy vessel drain valves and much lower-priced than sliding stem valves. The KA-N has – apart from the tapered inlet nozzle – the same design as the ball valve series KN. The pressure/temperature range, design features, material range and the major spare parts are identical. Product features • Full bore • N 50/25 (Ø 25 mm) to 150/100 (Ø 100 mm), D 2“/1“ (Ø 1“) to 8“/6“ (Ø 6“) • 60 to +200 °C (-75 to +400 °F), see diagram on page 3 • Face-to-face: see table on page 7 • langes ISO/DIN 7005-2 PN 16, F on request, drilled...

Open the catalog to page 4

Richter heavy-duty ball valves – shut-off, control and drain valves – KN-5

Richter control valves KNR and KNAR with play-free torque transmission Valve bodies, seat rings and the ENVIPACK stem sealing are identical to those of the shut-off valves KN and KNA as are the selection of material and the pressure/temperature range. Advantages: minimum stock of spare parts, conversion from shut-off to control valve possible. With the series KNR (ISO/DIN) and KNAR (ASME/ANSI) compact control valves with high control accuracy are available to plant operators. The KNR/KNAR valves are in many applications a very economical alternative to bellows-type, sliding stem valves. Product...

Open the catalog to page 5

Richter heavy-duty ball valves – shut-off, control and drain valves – KN-6

201 Ball stem unit Stainless steel, PFA-lined optionally PFA-L, PFA-HP 502 Spring gland follower Stainless steel 503 Packing gland follower Stainless steel Play-free coupling for KNR, KNAR 203 804 Stainless steel Stainless steel Stainless steel 557 Grounding spring washer Stainless steel Stainless steel Stainless steel 804 Coupling, play-free Stainless steel 850 Actuator Stainless steel Stainless steel * worm gear is recommended for torques >/= 200 Nm a (1770lbs) All torques: Test medium water 20 °C, seat rings of pure PTFE. The torques may vary depending on the medium (dry gases, crystallising...

Open the catalog to page 6

Richter heavy-duty ball valves – shut-off, control and drain valves – KN-8

Richter’s speciality: customised problem solutions Ask Richter when you are looking for a solution to your problem! In addition to the selection of common special designs presented here, we also offer many other specialities. Special manual actuations e. g. limit switch, locking, manual gear Stainless steel heating jacket for all standard heat transfer media Lockable lever as standard feature (KN, KNA) Extra thick-walled lining 5 mm ( 1/5“) for highly permeating media Ball with relief opening for pressure relief of the ball interior in the closed position Linings antistatic, FDA-compliant Richter...

Open the catalog to page 8