Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch
| Payment Terms | T/T,Western Union,MoneyGram |
| Supply Ability | 1000PCS |
| Delivery Time | 3~10DAYS |
| Packaging Details | white box |
| Product Name | Replace Grundfos Pump seal |
| Size | 16mm |
| Seal Faces | Silicon Carbide / Carbon-Graphite |
| Pressure | up to 3Mpa |
| Elastomer (O-Ring) | NBR (for cold water, oils), EPDM |
| Temperature | -10°C to +180°C |
| Brand Name | JG |
| Model Number | A/B |
| Certification | FDA certificate |
| Place of Origin | Zhejiang, China |
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Product Specification
| Payment Terms | T/T,Western Union,MoneyGram | Supply Ability | 1000PCS |
| Delivery Time | 3~10DAYS | Packaging Details | white box |
| Product Name | Replace Grundfos Pump seal | Size | 16mm |
| Seal Faces | Silicon Carbide / Carbon-Graphite | Pressure | up to 3Mpa |
| Elastomer (O-Ring) | NBR (for cold water, oils), EPDM | Temperature | -10°C to +180°C |
| Brand Name | JG | Model Number | A/B |
| Certification | FDA certificate | Place of Origin | Zhejiang, China |
| High Light | Grundfos pump replacement seal ，16mm water pump spring seal ，single spring seal for Grundfos | ||
Replace Grundfos Pump Single Spring Seal 16mm
The product designation "Replace Grundfos Pump Single Spring Seal 16mm" refers to a non-OEM (aftermarket) mechanical seal designed as a functional and dimensional equivalent to the original single-spring seal used in specific Grundfos centrifugal pumps.
Its core definition is: a cartridge mechanical seal with a 16mm bore, utilizing a single spring design, engineered for direct replacement in compatible Grundfos pump models, often offering cost-effectiveness and shorter lead times.
To ensure a correct replacement, the following key features, which must match the original seal, are critical for procurement:
| Feature | Description & Procurement Key |
|---|---|
| 1. Shaft Diameter | The primary dimension, must match exactly. The "16mm" specifies the diameter of the pump shaft for which the seal is designed. This is the foremost and non-negotiable sizing parameter. |
| 2. Spring Design | Critical structural characteristic. "Single Spring" indicates the seal uses one large helical spring (as opposed to multiple small springs) to provide the closing force. This is a typical design for many standard Grundfos pumps and directly affects the seal's dimensions and operational behavior. |
| 3. Construction & Type | Typically a Cartridge Seal. All components (rotary and stationary faces, spring, sleeve, O-rings) are pre-assembled into a single unit. This design simplifies installation and minimizes the risk of assembly errors. |
| 4. Material Configuration | The key determinant of service life. Must be selected based on the pumped fluid. Common configurations include: • Seal Faces: Silicon Carbide / Carbon-Graphite (cost-effective for clean water) OR Silicon Carbide / Silicon Carbide (for abrasive media). • Elastomer (O-Ring): NBR (for cold water, oils), EPDM (for hot water ≤ 120°C), FKM/Viton® (for chemicals, higher temperatures). |
To guarantee a successful replacement, follow these steps:
Identify Source Information: Locate the pump's nameplate data (model e.g., CR5, CR10, CH2-30) and/or the physical old seal. This is the most reliable reference.
Cross-Reference with Supplier: Provide the supplier with the following for confirmation:
Optimal Data: Pump model + clear photos of the old seal.
Key Dimensions: Confirm the 16mm shaft diameter and, if possible, provide the seal chamber's bore and depth.
Operating Conditions: Specify the fluid (e.g., 60°C hot water, sandy water, 3% NaOH solution), along with its temperature and pressure.
Verify Supplier Expertise: Choose a specialized seal supplier who can provide detailed dimensional drawings and material certifications, confirming their product is a direct replacement design for Grundfos pumps.
Critical Note: Do not order based solely on the description "16mm single spring." It is essential to provide the supplier with clear photographs of the old seal (especially faces and side profile), measured dimensions, and complete operating conditions for final verification.
1. high pressure water pump seal JG A for CR-8 multistage pump
2. Application: replacement for grundfos pump seal CR-4,CR-8 , CR-16
3. Specification: double face seal, single spring
4. Certification: ISO9001, FDA
Operating Limited:
| Shaft diameter | 12&16mm |
| Pressure | up to 3Mpa |
| Temperature | -20~180°C |
| Slidingvelocity | 15m/s |
Material:
| Rotary Ring | Car / SIC/TC/Cer |
| O-Ring | , EPDM, NBR, AFLAS, Kalrez,PTFE |
| Spring and Metal Parts | SUS304, SUS316, Titan, Hast C,904L |
| Stationary Ring | Car / SIC /TC/Cer |
Advantages:
Application:
• Water and waste water technology
• Chemical industry
• Refining technology
• Dirty, abrasive and solid containing media
• Fugitive hydrocarbons (no API seal!)
• Sticky and stringy media
• Chemical standard pumps
• Sewage pumps
Shipping & Payment Terms:
Port of Loading: Shanghai
Shipping Method: DHL,UPS,FEDEX,TNT, etc
Payment Terms: T/T, Western Union, money gram
Our services:
◆ OEM/ODM orders are available for our factory
◆ Accept customized mechanical seals according to your drawing or requirements
◆ Small quantity is accepted
◆ Provides excellent quality with competitive price
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1992
Total Annual:
10milion-15milion
Employee Number:
80~100
Ecer Certification：
Verified Supplier
JIAXING BURGMANN is a professional manufacturer of mechanical seal for pump and autoclave used in the mining, industry, agriculture, flange, rubber ring, bushing, hard alloy and Sic. We are specialized in producing Burgmann series seals. We have over 20 years production experience, wit... JIAXING BURGMANN is a professional manufacturer of mechanical seal for pump and autoclave used in the mining, industry, agriculture, flange, rubber ring, bushing, hard alloy and Sic. We are specialized in producing Burgmann series seals. We have over 20 years production experience, wit...
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