Richter Sampling Valves Body ductile iron with PFA lining or investment cast stainless steel Bellows-sealed Safety packing gland Representative sampling

® Travel stop, adjustable from outside • finely metered sampling • closing force can be increased at any time if the sealing action in the seat/ plug area is insufficient (e.g. if sealing surfaces damaged) ® Safety spring return by means of a central spring suitable for all pressure ranges (“dead man’s handle”) © Safety packing gland • acts independently • re-adjustable from outside © a: Lining virgin PFA • wall thickness 3-3.5 mm • high permeation resistance • vacuum-proof anchored b: Alternatively stainless steel 1.4435 (316 L) investment cast body without lining © Glandless due to heavy-duty...

Sampling valve PA/F with thick-walled PFA lining 7 Sampling valve PA/S of stainless steel design (without lining) 3

Richter sampling valves Components and materials Item Designation Material 100 Body PA/F: ductile cast iron EN-JS 1049/ ASTM A395 with PFA lining PA/S: cast stainl. steel 1.4435 (316 L) investm. 104 Transition flange stainless steel (only DN 40+80, not shown) 106 Cover stainless steel 203 Lever stainless steel 205 Seat PA/F: ductile cast iron EN-JS 1049/ ASTM A395 with PFA lining DN 40+80: stainless steel PA/S: cast stainl. steel 1.4435 (316 L) investm. 206 Bellows w. plug modified pure PTFE 226 Bottle connection modified pure PTFE 302/1 Guide ring PTFE carbon 400/1 O-ring, not wetted FKM (Viton®...

Options Sampling valves with stainless steel protective cabinet Sampling valves with actuator Septum bottle NEW: adapter for Needle and adapter high-purity media made of stainless steel With this new option sampling in a septum bottle is even possible with the stainless steel series PA/S. The protective cabinets are produced in standard sizes and with various accessories, also custom-made. Fig.: Option with spring-loaded bottle holder. Pneumatic and electric actuators. Makes as per customers choice. For design details, see page 6 Body heating Handwheel instead Flat plug for of lever...

Plug and adapter versions Special design for highly viscous media or applications with low operating pressure The standard version of the PA valve with a tapered plug has a travel of 3 mm, producing an angular gap of 0.5 mm over a length of 20 mm. With a travel of 3 mm the special flat plug produces a full cross section of the outlet opening of 10 mm. • higher viscous media and The suitable valve plug is selected according to the viscosity/operating pressure diagram (see page 4). • media with a low operating pressure Richter should be consulted in case of different application parameters. requires...