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Samson 2371-10, Mounting And Operating Instructions

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Samson 2371-10 Mounting And Operating Instructions Download Page 1

Mounting and 

Operating Instructions

EB 2640 EN

 Edition January 2016

Type 2371-11 Pressure Reducing Valve

Manual set point adjustment

Type 2371-10 Pressure Reducing Valve

Pneumatic set point adjustment

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

Summary of Contents for 2371-10

Page 1: ...ucing Valve Manual set point adjustment Type 2371 10 Pressure Reducing Valve Pneumatic set point adjustment Series 2371 Pressure Regulators Pressure reducing valves for the food and pharmaceutical ind...

Page 2: ...h if not avoided will result in death or seri ous injury WARNING Hazardous situations which if not avoided could result in death or se rious injury NOTICE Property damage message or mal function Note...

Page 3: ...ge line connection 11 5 Operation 11 5 1 Start up 11 5 2 Adjusting the set point 11 5 2 1 Set point Type 2371 11 12 5 2 2 Set point Type 2371 10 14 5 3 Operation 14 5 4 Decommissioning 14 6 Cleaning a...

Page 4: ...nsure appropriate use only use the regulator in applications where the operating pressure and temperatures do not exceed the specifications used for sizing the regulator at the ordering stage The manu...

Page 5: ...the regulator may cause it to burst If necessary a suitable overpressure protection must be installed on site in the plant section Note The Type 2371 10 11 Regulators are shut off devices that do not...

Page 6: ...ulting force exceed the force of the springs The set point is adjusted by an Allen key 8 mm which is inserted through the adjust ment opening 6 1 on top of the housing onto the set point screw 6 The b...

Page 7: ...s p1 p2 pc 15 3 11 2 4 1 12 6 1 6 8 1 9 5 3 2 12 7 1 7 11 4 15 p1 p2 1 Valve body 6 Set point screw 11 Test connection or leakage line connection 2 Seat 6 1 Adjustment opening with blanking plug 12 Lo...

Page 8: ...ally using a spe cial pin for Type 2371 11 only The pneumatic and manual stem locking do not effect the control function of the valve provided the stem locking is not engaged The pneumatic unit for th...

Page 9: ...sing the spring force To switch the valve back to its control func tion remove the pressure pV 6 bar Manual stem locking Type 2371 11 only To lock the stem into place screw the pin into the opening on...

Page 10: ...ttach supports to the regulator itself Select a straight section of pipeline without any disturbances as the site of installation for the regulator to ensure that the control func tion is not affected...

Page 11: ...t of a defective diaphragm e g diaphragm rupture any process medi um that escapes can be fed through a pipe to a safe location Adapt the pipe diameter to the connection at the regulator 5 Operation 5...

Page 12: ...Allen key 3 mm to undo the locking screw 12 if it is tightened two turns counterclock wise 2 Use an Allen key 8 mm to remove the blanking plug 6 1 3 Place the key through the opening to reach the set...

Page 13: ...EB 2640 EN 13 Operation 1 Position of the locking screw 12 with stopper Fig 4 Set point adjustment of Type 2371 11 3 4 Stopper Locking screw 12 concealed 6 1 6 2 5...

Page 14: ...eumatic set point adjustment G connection for the set point pressure line at the side on the pneumatic unit 5 3 Operation A correctly sized Type 2371 10 11 Pres sure Reducing Valve works automatically...

Page 15: ...at the PTFE layer of the diaphragm see Fig 1 Fig 12 and Fig 13 is not damaged e g cracks milky coloring at the bends This is necessary for compliance with EU 1935 2004 If leakage still occurs and ther...

Page 16: ...open position A mechanical stop prevents it from being screwed in any further protecting the diaphragm from being overloaded 2 Use the lock nut 14 to keep this posi tion When the groove of the pin is...

Page 17: ...tic unit This causes the set point screw 6 to move and the plug to move out of the valve seat and opens the valve 3 To switch the valve back to its control function remove the pressure pV 6 bar to ret...

Page 18: ...it 17 to move the plug stem to gether with the plug out of the valve seat and open the valve 3 To switch the valve back to its control function remove the pressure pV 1 bar to return the pressure back...

Page 19: ...ated plugs is still permissible refer to section 9 on page 26 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...

Page 20: ...for the disassembly Insert the two washers into the threaded hole with the concave sides facing away from each other as shown in the drawing Do not forget the PEEK seal Tightening torque DN 15 to 25...

Page 21: ...valve and housing are loaded by the compressed springs The valve is opened by spring force Relieve the set point springs of tension before re moving the actuator housing 2 Remove the stopper Undo the...

Page 22: ...perly Type 2371 11 Replacing the diaphragm unit together with the flange section The diaphragm is replaced as a complete unit together with the guide flange 5 plug stem 3 2 inside of it as well as the...

Page 23: ...ball bear ings in the cover valve bonnet On pulling off the cover the ball bear ings embedded in food grade lubri cant are exposed and might fall out 4 Carefully pull off the cover 5 Undo the grub sc...

Page 24: ...defects occur contact the SAMSON After sales Service Department for support Please e mail inquires to aftersalesservice samson de The addresses of SAMSON AG its subsid iaries representatives and serv...

Page 25: ...ature in C or F 7 Flow coefficient KVS m h or CV US gal min ME Metal seal EPDM Soft seal EPDM PK Soft seal with PEEK 8 Serial number 7 3 5 6 8 2 4 1 PED art 3 sect 3 Made in France Fig 16 Inscription...

Page 26: ...sted 1 Ra 0 6 m polished Internal Ra 0 8 m precision lathed 1 Ra 0 6 m polished Ra 0 4 m satin finish Ra 0 4 m mirror finish Compliance Type 2371 10 11 ANSI Nominal size NPS NPS NPS 1 NPS 1 NPS 1 NPS...

Page 27: ...g L2 A D H3 H 10 5 mm H1 L1 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 th...

Page 28: ...n Type 2371 10 With pneumatic stem locking int ext L1 L2 L1 L2 ext int Clamp connections Flanges Threaded connection according to DIN Threaded connection according to ISO SMS Fig 18 Dimensional drawin...

Page 29: ...15 NPS DN 20 NPS DN 25 NPS 1 DN 32 NPS 1 DN 40 NPS 1 DN 50 NPS 2 DN 32 NPS 1 DN 40 NPS 1 DN 50 NPS 2 Com mon dimen sions A 85 mm 145 mm H 80 mm H1 245 mm 260 mm 180 mm H3 200 mm D 150 mm Weight approx...

Page 30: ...RD65x1 6 RD78x1 6 RD95x1 6 RD65x1 6 RD78x1 6 RD95x1 6 DIN 11864 1 GS Form A Series C pmax 10 bar 150 psi L1 55 60 65 70 105 105 L2 90 90 90 90 155 155 int 15 75 22 1 34 8 47 5 34 8 47 5 ext RD34x1 8...

Page 31: ...34 8 47 5 34 8 47 5 ext 34 50 5 64 77 5 64 77 5 DIN 32676 Series A pmax 10 bar 150 psi L1 55 55 60 60 65 70 105 105 105 L2 90 90 90 90 90 90 155 155 155 int 16 20 26 32 38 50 32 38 50 ext 34 34 50 5 5...

Page 32: ...0 105 115 125 155 155 155 int 16 20 26 32 38 50 32 38 50 ext 59 64 70 76 82 94 76 82 94 DIN 11864 2 NF Form A Series B pmax 10 bar 150 psi L1 90 95 100 105 115 125 105 105 105 L2 90 95 100 105 115 125...

Page 33: ...EB 2640 EN 33...

Page 34: ...34 EB 2640 EN...

Page 35: ...EB 2640 EN 35...

Page 36: ...SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samson de www samson de EB 2640 EN 2016 03 11 English...

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