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High Pressure Grundfos Pump Mechanical Seal CR CRN Multistage Pump
High Pressure Grundfos Pump Mechanical Seal CR CRN Multistage Pump
Specifications
Place of Origin :
Zhejiang, China
O-Ring Material :
EPDM / NBR / FKM / AFLAS / PTFE
Compatibility :
100% Grundfos OEM Dimensions
Delivery Time :
7-15 Working Days
Payment Terms :
T/T,Western Union,MoneyGram
Shaft Diameter :
12 mm / 16 mm
Supply Ability :
10,000 Pieces / Month
Friction Pair Material :
Silicon Carbide / Tungsten Carbide / Carbon
Model Number :
GLF-2
Certification :
ISO9001, FDA
Price :
USD 3-30 / Piece
Temperature Range :
-20°C ~ 180°C
Product Name :
3MPa High Pressure Grundfos Pump Mechanical Seal
Packaging Details :
Carton Packaging with Foam Protection
Application :
CR CRN Multistage Centrifugal Pump
MOQ :
10 Pieces
Brand Name :
JG
Max Working Pressure :
3 MPa
Description
High Pressure Grundfos Pump Mechanical Seal CR CRN Multistage Pump

The 3MPa high pressure Grundfos pump mechanical seal is a precision-engineered direct replacement designed for Grundfos CR and CRN multistage centrifugal pumps with 12 mm and 16 mm shafts. It matches Grundfos OEM dimensions exactly, which means the Grundfos pump mechanical seal drops into the existing stuffing box without any pump modification, saving downtime and maintenance cost.

Rated for working pressure up to 3MPa and media temperature from -20°C to 180°C, this high pressure Grundfos pump mechanical seal is built for boosting systems, water supply, irrigation, HVAC and industrial circulation duties where standard seals lose stability under pressure surges.

Reliability comes from material engineering. The 3MPa high pressure rating is achieved through a balanced seal face design that keeps hydraulic load stable under pressure surges. The spring unit is isolated from the pumped media, preventing sticking or clogging even in poor lubrication conditions.

Technical Parameters
Parameter Value
Shaft Diameter 12 mm / 16 mm
Working Pressure up to 3 MPa
Media Temperature -20 °C ~ 180 °C
Sliding Velocity ≤ 15 m/s
Rotary Ring Carbon / Silicon Carbide / Tungsten Carbide / Ceramic
Stationary Ring Carbon / Silicon Carbide / Tungsten Carbide / Ceramic
O-Ring EPDM / NBR / AFLAS / Kalrez / PTFE
Spring and Metal Parts SUS304 / SUS316 / Hastellow C / 904L
Seal Type Single Spring, O-Ring Type
Compatible Pumps Grundfos CR, CRN, CRK, CH, CM, NBG, MTH, HPK series
Applications
  • Grundfos CR / CRN multistage centrifugal pumps
  • Water supply and pressure boosting systems
  • Irrigation and agricultural pumping
  • HVAC circulation and chilled water systems
  • Industrial cleaning, reverse osmosis and filtration
Key Advantages
  • 100% compatible with Grundfos OEM dimensions and specifications
  • 3MPa high pressure rating for demanding multistage pump duties
  • Easy replacement without dismantling the pump body
  • Spring unit isolated from media, no sticking or clogging
  • Seal face locked by square pin for safe, fracture-free operation
  • OEM/ODM and cross-reference service for Grundfos part numbers
Product Q&A
Is this Grundfos pump mechanical seal a true drop-in replacement for OEM parts?
Yes. The Grundfos pump mechanical seal is manufactured to the exact OEM dimensions for Grundfos CR and CRN pumps with 12 mm and 16 mm shafts. Installation requires no adapters or pump modification, and the seal can be fitted without dismantling the pump body, which reduces maintenance time to a minimum.
Can this seal really operate at 3MPa working pressure?
Yes. The balanced design keeps the hydraulic face load stable under high pressure, preventing face distortion and leakage in multistage pump systems where pressure surges are common. The 3MPa high pressure rating covers CR, CRN and other Grundfos pump applications that exceed the 0.6MPa limit of standard seals.
Which materials should I choose for my pumped medium?
For clean water and mild media, carbon versus silicon carbide with NBR or EPDM O-rings is the economical standard choice. For corrosive or high-temperature media, we recommend silicon carbide versus silicon carbide or tungsten carbide faces with AFLAS, Kalrez or PTFE O-rings and SUS316 or Hastelloy C metal parts.
Do you provide cross-reference service for Grundfos part numbers?
Yes. We offer cross-reference service for Grundfos pump mechanical seal part numbers and can supply emergency replacement seals quickly. OEM/ODM customization is also available, including special shaft sizes, material upgrades for harsh applications and custom packaging.

As a sealing factory established in 1992, we supply this 3MPa high pressure Grundfos pump mechanical seal to pump distributors, maintenance contractors and water treatment projects worldwide. Each seal is backed by a complete quality management system, and samples are available before mass production.

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High Pressure Grundfos Pump Mechanical Seal CR CRN Multistage Pump

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Product Detail
Place of Origin :
Zhejiang, China
O-Ring Material :
EPDM / NBR / FKM / AFLAS / PTFE
Compatibility :
100% Grundfos OEM Dimensions
Delivery Time :
7-15 Working Days
Payment Terms :
T/T,Western Union,MoneyGram
Shaft Diameter :
12 mm / 16 mm
Contact Supplier
High Pressure Grundfos Pump Mechanical Seal CR CRN Multistage Pump

Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch

Verified Supplier
9 Years
zhejiang, jiaxing
Since 1992
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
Industrial Mechanical Seals, Metal Bellows Seal, Cartridge Mechanical Seal
Total Annual :
10milion-15milion
Employee Number :
80~100
Certification Level :
Verified Supplier
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