Samson 2371-10 Mounting And Operating Instructions
  1. Manuals
  2. Brands
  3. Samson Manuals
  4. Controller
  5. 2371-10
  6. Mounting and operating instructions
Samson 2371-10 Mounting And Operating Instructions

Samson 2371-10 Mounting And Operating Instructions

Pressure regulators; pressure reducing valves for the food and pharmaceutical industries
Hide thumbs Also See for 2371-10:
Table of Contents

Advertisement

Quick Links

Series 2371 Pressure Regulators
Pressure reducing valves for the food and pharmaceutical
industries
Type 2371-10 · Pneumatic set point adjustment
Type 2371-11 · Manual set point adjustment
Type 2371-11 Pressure Reducing Valve
Manual set point adjustment
Type 2371-10 Pressure Reducing Valve
Pneumatic set point adjustment
Mounting and
Operating Instructions
EB 2640 EN
Edition January 2016

Advertisement

Table of Contents
loading

Related Manuals for Samson 2371-10

Summary of Contents for Samson 2371-10

  • Page 1 Pressure reducing valves for the food and pharmaceutical industries Type 2371-10 · Pneumatic set point adjustment Type 2371-11 · Manual set point adjustment Type 2371-11 Pressure Reducing Valve Type 2371-10 Pressure Reducing Valve Manual set point adjustment Pneumatic set point adjustment Mounting and Operating Instructions EB 2640 EN...
  • Page 2 Definition of signal words DANGER! NOTICE Hazardous situations which, if not Property damage message or mal- avoided, will result in death or seri- function ous injury Note:  WARNING! Additional information Hazardous situations which, if not avoided, could result in death or se- Tip: rious injury Recommended action...

  • Page 3: Table Of Contents

    Shut-off valve and pressure gauge ..............10 Safety valve ....................11 Leakage line connection ................11 Operation ....................11 Start-up .......................11 Adjusting the set point ..................11 5.2.1 Set point · Type 2371-11 ................12 5.2.2 Set point · Type 2371-10 ................14 Operation ....................14 Decommissioning ..................14 Cleaning and maintenance ................15 Cleaning .....................15 6.2 Maintenance · Replacing parts ..............19 6.3 Replacing the plug ..................19 6.4...

  • Page 4: General Safety Instructions

    General safety instructions 1 General safety instructions − The regulator is to be mounted, started up or serviced by fully trained and qualified personnel only; the accepted industry codes and practices are to be observed. Make sure employees or third persons are not exposed to any danger. − All safety instructions and warnings given in these mounting and operating instructions, particularly those concerning installation, start-up and mainte- nance, must be strictly observed.

  • Page 5: Process Medium And Scope Of Application

    WARNING! The Type 2371-10/-11 Regulators are designed as safety valves. Exceeding the max- imum pressure (10 bar/150 psi) of the regulator may cause it to burst. If necessary, a suitable overpressure protection must be installed on site in the plant section.

  • Page 6: Design And Principle Of Operation

    The resulting output pressure depends on the flow rate. Type 2371-10 ·Version with pneumatic set Any medium escaping from the test connec- point adjustment (see also section 5.2 on tion (11) indicates that the operating dia- page 11) phragm (4) may be leaking or the dia- In the idle state, the valve is kept open by the phragm has ruptured.
  • Page 7 Design and principle of operation The two diaphragms (4.1) provide a certain mixing. The screw (12) prevents parts from amount of safety when one of the dia- falling apart inadvertently while the regula- phragms ruptures and prevents the process tor is being dismantled. medium and external pressure medium from Type 2371-10 Type 2371-11 Type 2371-11 · Locking screw to lock the set point screw in position Valve body Set point screw Test connection or leakage line connection Seat Adjustment opening with blanking plug...
  • Page 8 The unit can be mounted in any position ê ∙ connection   Lock nut Pneumatic unit Pneumatic stem locking · Types 2371-10/-11 Manual stem locking · Type 2371-11 Stem locking engaged Fig. 2: Stem locking EB 2640 EN...
  • Page 9 Design and principle of operation Pneumatic stem locking Type 2371-10 To open the valve, apply a pressure p (= 1 bar) to the pneumatic unit. This causes the plug stem to move together with the plug out of the valve seat. A set point pressure p must not be applied to the regulator in this case. To switch the valve back to its control func- tion, remove the pressure p (= 1 bar).

  • Page 10: Installation

    Installation 4 Installation 4.1 Mounting position The regulator has an angle-style NOTICE valve body. The actuator hous- Pay particular attention to correct hy- ing must face upwards. As a re- giene and ensure that regulators for sult, the outlet must face to the the food and pharmaceutical indus- side in the installed position.

  • Page 11: Safety Valve

    Operation 4.3 Safety valve 5 Operation The Types 2371-10/-11 Regulators are shut- 5.1 Start-up off devices that do not guarantee absolute tight shut-off (leakage class, see section 9 on First start up the regulator after mounting all page 26). parts. As a result, the output pressure p can rise to Fill the plant slowly with the process medium. the same level as the downstream pressure Avoid pressure surges. Open the shut-off in a plant which does not have its own valves first on the upstream pressure side.

  • Page 12: Set Point · Type 2371-11

    Operation 5.2.1 Set point · Type 2371-11 The valve closes when the output pressure p exceeds the adjusted set point. Manual set point adjustment ∙See Fig. 1 on 5. Retighten the locking screw (12) to pre- page 7. vent the set point screw (6) from being The set point is adjusted for the lowest output turned. pressure in the delivered state. The locking − Reinsert the stopper. screw (12) is not tightened. NOTICE Set point screw screwed too tight! The regulator is blocked and the me- dium flow through it is restricted.
  • Page 13 Operation Stopper ∙ Locking screw (12) concealed Position of the locking screw (12) with stopper Fig. 4: Set point adjustment of Type 2371-11 EB 2640 EN...

  • Page 14: Set Point · Type 2371-10

    Operation 5.2.2 Set point · Type 2371-10 5.3 Operation Pneumatic set point adjustment ∙ See Fig. 1 A correctly sized Type 2371-10/-11 Pres- on page 7. sure Reducing Valve works automatically within its control range. How to proceed: We recommend after every start-up to check 1. Connect the external set point pressure that the regulator functions properly and to line at the G ¼ connection. Max. pres- adapt it to new operating conditions, if nec- sure p  = 8 bar.

  • Page 15: Cleaning And Maintenance

    Cleaning and maintenance 6 Cleaning and maintenance 6.1 Cleaning The pressure reducing valves do not require To clean inside the regulator, the plug can be any maintenance. Nevertheless, they are kept in the open position in the version with subject to natural wear, particularly at the stem locking to allow the valve to be cleaned seat, plug and operating diaphragm. (CIP = Cleaning In Place or SIP = Steriliza- tion In Place) while it is open (see Stem lock- Depending on the operating conditions, ing for CIP or SIP on page 8).
  • Page 16 Cleaning and maintenance Manual stem locking Type 2371-11 See Stem locking for CIP or SIP on page How to proceed: 1. Remove the blanking plug and screw the pin (13) of the stem locking with the lock nut (14) into the adjustment opening. − The end of the pin comes to rest on the head of the set point screw and keeps the plug in the open position. A mechanical Manual stem locking · Type 2371-11 stop prevents it from being screwed in any further, protecting the diaphragm...
  • Page 17 Cleaning and maintenance Pneumatic stem locking Stem locking engaged  = 6 bar Type 2371-10 and Type 2371-11 See Stem locking for CIP or SIP on page connection Actuator housing Stem locking Type 2371-11 The pressure p  = 6 bar applied to the pneu- matic unit opens the valve. This causes the plug stem to move together with the plug out of the valve seat and opens the valve.
  • Page 18 Cleaning and maintenance Type 2371-10 Stem locking disengaged  = Atmospheric pressure To open the valve, apply a pressure p 1 bar to the pneumatic unit. This causes the plug stem to move together with the plug out of the valve seat. A set point pressure p connection must not be applied to the regulator in this Actuator housing Stem locking case.

  • Page 19: Maintenance · Replacing Parts

    C coeffi- cient in the case of metal-seated plugs and 0.01 % in the case of soft-seated plugs is still Socket wrench permissible (refer to section 9 on page 26). Cutaway model · Unscrewing or screwing in the plug with a socket wrench 6.3 Replacing the plug Types 2371-10/-11 · Replacing the plug The plug (3) is screwed into the plug support (3.1) and can only be removed through the inlet port. Use the appropriate socket wrench to unscrew the plug. Screwed-in plug (3), plug support (3.1) seal and washers How to proceed: 1. Loosen the plug using the socket wrench Fig. 9: Replacing the plug of Type 2371-11 −...
  • Page 20 Cleaning and maintenance We recommend also checking the dia- phragm for cracks and damage as a preven- tive measure. Refer to section 6.4 on page 21. Assemble the new plug (3) in the reverse or- der described for the disassembly. Insert the Washers two washers into the threaded hole with the PEEK seal concave sides facing away from each other (as shown in the drawing). − Do not forget the PEEK seal! Tightening torque −...

  • Page 21: Replacing The Diaphragm Unit

    Cleaning and maintenance 6.4 Replacing the diaphragm Contact SAMSON if you intend to replace just the diaphragm or plug support. unit Type 2371-11 · Diaphragm unit How to proceed (see Fig. 11): In the event that the diaphragm is defective, 1. Remove the plug (see section 6.3 on we recommend replacing the entire dia- page 19).

  • Page 22: Replacing The Two Diaphragms

    9. Position the clamp fitting. Grease the groove and screw with food grade lubri- cant. Hit the clamp lightly with a plastic 6.5 Replacing the two dia- hammer and tighten the clamp screw again until the parts fit properly. phragms Type 2371-10 · Two diaphragms Type 2371-11 · Replacing the diaphragm The two diaphragms are clamped from the unit together with the flange section outside between the valve body (1) and cov- The diaphragm is replaced as a complete er (1.1). Inside the plug support and plug unit together with the guide flange (5), plug stem that are bolted together guide the dia- stem (3.2) inside of it as well as the plug...
  • Page 23 Cleaning and maintenance section) to get access to the plug stem (19) Note:  and diaphragms (4.1). The plug stem is guided by ball bear- How to proceed ings in the cover (valve bonnet). On pulling off the cover, the ball bear- 1. Undo and remove the four screws (16, ings embedded in food grade lubri- width across flats 13). Keep in a safe cant are exposed and might fall out.

  • Page 24: Replacing The Set Point Springs

    Type 2371-11 · Set point springs support. You need to replace the set point springs (7) Please e-mail inquires to: with both plates to achieve a different set aftersalesservice@samson.de point range. We recommend changing the The addresses of SAMSON AG, its subsid- entire actuator housing (8) with set point iaries, representatives and service facilities springs (7) and set point screw (6). worldwide can be found on the SAMSON How to proceed: website (u www.samson.de), in all The regulator does not need to be removed SAMSON product catalogs or on the back from the pipeline.

  • Page 25: Nameplate

    Nameplate 8 Nameplate The specifications are located on the regula- tor housing. art. 3 sect. 3 Made in France Fig. 16: Inscription field 2 on the housing Comments: Fig. 15: Inscription field 1 on the housing Mark of conformity (food) PED labeling Comments: Made in France/year of manufacture Type designation Arrow indicating the direction of flow Modification index Nominal size DN Note: Material numbers according to DIN EN ...

  • Page 26: Technical Data

    Technical data 9 Technical data Table 1: Technical data · All pressures (gauge) Type 2371-10/-11 Nominal size DN 15 DN 20 DN 25 DN 32 DN 40 DN 50  10 1.5 to 6 bar Type 2371-10 – Set point ranges  16 3.5 to 6 bar Type 2371-11 0.3 to 1.2 bar ∙ 1 to 3 bar ∙ 2.5 to 4.5 bar ∙ 4 to 6 bar Maximum pressure 10 bar Operating temperature 0 to 160 °C Max. perm.

  • Page 27: Dimensions

    Dimensions 10 Dimensions 52 mm 7 mm Type 2371-11 ∙ Standard version Type 2371-11 ∙ With manual stem locking ØD 10.5 mm Refer to tables starting with Table 2 on page 29 for associated dimensions. Type 2371-11 with clamp end connections in these drawings The clamp fitting (connection between the actuator hous- ing and valve) is turned 90° in the drawing. Type 2371-11 ∙ With pneumatic stem locking Fig. 17: Dimensional drawings for Type 2371-11 EB 2640 EN...
  • Page 28 Type 2371-10 ∙ Standard version Type 2371-10 ∙ With pneumatic stem locking Øint Øext Øint Øext L1 (L2) L1 (L2) Clamp connections Flanges Øint Øext Øint Øext L1 (L2) L1 (L2) Threaded connection according to DIN ... Threaded connection according to ISO/SMS ... Fig. 18: Dimensional drawings · Type 2371-10 and various types of end connections for Types 2371- 10/-11 EB 2640 EN...
  • Page 29 Dimensions Table 2: Dimensions of the regulators Type 2371-11 Type 2371-10 DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 32 DN 40 DN 50 Nominal size NPS ½ NPS ¾ NPS 1 NPS 1¼ NPS 1½ NPS 2 NPS 1¼ NPS 1½ NPS 2 85 mm 145 mm 80 mm Com- 245 mm 260 mm 180 mm dimen- sions ≥200 mm ØD 150 mm...
  • Page 30 Dimensions Table 3: Threaded connections · All dimensions in mm Type 2371-11 Type 2371-10 DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 32 DN 40 DN 50 Nominal size NPS ½ NPS ¾ NPS 1 NPS 1¼ NPS 1½ NPS 2 NPS 2 NPS 1¼ NPS 1½ 10 bar/150 psi DIN 11864-1 GS Form A Series A Øint Øext RD34x1/8“ RD44x1/6“ RD52x1/6“ RD58x1/6“ RD65x1/6“ RD78x1/6“ RD58x1/6“ RD65x1/6“ RD78x1/6“...
  • Page 31 Dimensions Table 4: Clamp connections · All dimensions in mm Type 2371-11 Type 2371-10 DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 32 DN 40 DN 50 Nominal size NPS ½ NPS ¾ NPS 1 NPS 1¼ NPS 1½ NPS 2 NPS 2 NPS 1¼ NPS 1½ 10 bar/150 psi DIN 11864-3 NKS Form A Series A Øint Øext 50.5 50.5 50.5 77.5 50.5...
  • Page 32 Dimensions Table 5: Flanges · All dimensions in mm Type 2371-11 Type 2371-10 DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 32 DN 40 DN 50 Nominal size NPS ½ NPS ¾ NPS 1 NPS 1¼ NPS 1½ NPS 2 NPS 2 NPS 1¼ NPS 1½ 10 bar/150 psi DIN 11864-2 NF Form A, Series A Øint Øext 10 bar/150 psi DIN 11864-2 NF Form A, Series B Øint...
  • Page 33 EB 2640 EN...
  • Page 34 EB 2640 EN...
  • Page 35 EB 2640 EN...
  • Page 36 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 2640 EN samson@samson.de · www.samson.de...

This manual is also suitable for:

2371-112371 series

Table of Contents