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Mechanical seals for Pedrollo pumps

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Mechanical seal for Pedrollo pump

The design of the mechanical seal consists mainly of two parts: a movable part and a fixed part. The fixed part is usually a ring that is fixed in the pump housing. The movable part is mounted on the shaft and is pressed against the fixed part by means of a spring. Mechanical sealing is achieved using secondary seals (bellows, rubber rings) and a friction pair. When choosing a mechanical seal, it is important to choose the material of the secondary seals and friction pairs.

Pedrollo Mechanical Shaft Seal Materials

rubber material:

  • NBR (nitrile butadiene rubber), temperature resistance -20 to +120C
  • EPDM (ethylene-propylene rubber), temperature resistance -30 to +170C
  • Viton (fluoroelastomer), temperature resistance -30 to +185C
  • PTFE (fluoroplast), temperature resistance -260 to +260C

Friction pairs

  • SUS - metal (stainless steel)
  • CAR - graphite
  • CER - ceramics
  • SIC - silicon carbide
  • TC - tungsten carbide

It is visually difficult to understand how these materials differ from each other (except for PTFE), so it is easier to choose a material based on the pumped medium and its temperature. Please contact us, we will help you determine the material and choose the mechanical seal you need for the Pedrollo pump.

In PEDROLLO pumps (Pedrolo), mechanical seals with a conical spring R-BT-FN and R-BT-AR are mainly installed. In order to buy a mechanical seal for PEDROLLO, you need to know the type designation "AR-12" or the pump part number. We select seals according to the sample, according to the PEDROLLO pump article or according to the markings of Burgmann, Roten, AESSEAL and other seal manufacturers.

Didn't find your PEDROLLO mechanical seal in the list? Call!

Seal brand vendor code Pump brand PEDROLLO Material

Pedrollo

AR-12

11516101201

PK60-65, PKS, PQ-65, CP100-130-132, HF50, JSW1, JCR1

Cer/Car/NBR

AR-12V

11516101203

CK, CKR

Cer/Car/VITON

AR-13

11516101301

2CP, 4CP, 5CR, 2CPm 80/100, 3CPm 80/100, 4CPm 80/100, 4CPm 80/100

Cer/Car/NBR

AR-14

11516121401

CP150-158,AL-RED,HF4-5-51, 2CP25-130N, 2CPm25-130N

Cer/Car/NBR

AR-14S

11516141402

NGA PRO

Cer/Car/VITON

     

Pedrollo

ST1-12

11516471200

PK90, PQ70-80-81-90, PQ60-65-81, PQA

Car/SIC/NBR

ST1-12E

11516471201

PV55

Cer/Car/EPDM

 
Pedrollo

FN-14

11516301401

PK100-20-300, PQ100-200-300

Cer/Car/NBR

FN-18

11516301801

CP170-190-200, CP160, HF5M-6-70, 2CP25/14, 2CP25/16, JCW3

Cer/Car/NBR

FN-20

11516302001

CP220B-C, CP230C, HF8-20, 2CP32/200, F-F4 32/160, F-F4 40/160, F-F4 50/125

Cer/Car/NBR

FN-24

11516302401

CP210, CP220A-AH, CP230B-A, CP250C, HF30, 2CP32/210, 2CP40/180, F-F4 32/200 F-F4 40/200, F-F4 50/160, F-F4 65/125

Cer/Car/NBR

FN-38

11516303801

F-F4 40/250, F-F4 50/250

Cer/Car/NBR

 
Pedrollo FN-18NU 11516301821 PQ3000 Cer/Car/NBR
FN-20NUD 11516302030 FG32/160, FG40/160, FG50/125 Cer/Car/NBR
FN-24NUD 11516302430 FG32/200, FG40/200, FG50/160, FG65/125 Cer/Car/NBR
FN-24SV 11516302408 F-INOX SIC/SIC/VITON
FN-32NU 11516303220 CP250A, 2CP40/200, F-F4 50/200, F-F4 65/160, F-F4 65/200, F-F4 80/160, F 100/160 Cer/Car/NBR

FN-32NUD

11516303230

FG50/200, FG65/165, FG65/200, FG80/160, FG100/160 Cer/Car/NBR

FN-35NUD

11516303530

FG40/250, FG50/250

Cer/Car/NBR

FN-40NU

11516314010

F-F4 65/250, F-F4 80/200, F 80/250B, F-F4 100/200, FG80/200A, FG100/200A

Cer/Car/NBR

FN-43NU

11516314300

FG65/250, FG80/250, FG100/250

Cer/Car/NBR

FN-45NU

11516314500

F-F4 80/250A, F-F4 100/250

Cer/Car/NBR

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