logo
Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch
Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch
các sản phẩm
Nhà /

các sản phẩm

Grundfos Cartridge Pump Seal 43mm

Chi tiết sản phẩm

Nguồn gốc: Chiết Giang, Trung Quốc

Hàng hiệu: JG

Chứng nhận: FDA certificate

Số mô hình: Sarlin 43

Điều khoản thanh toán và vận chuyển

Số lượng đặt hàng tối thiểu: 1 cái

Giá bán: USD

chi tiết đóng gói: Hộp trắng

Thời gian giao hàng: 3 ~ 10 ngày

Điều khoản thanh toán: T/T, Công Đoàn Phương Tây, MoneyGram

Khả năng cung cấp: 1000 chiếc

Nhận được giá tốt nhất
Liên hệ ngay bây giờ
Thông số kỹ thuật
Làm nổi bật:

Grundfos 43mm cartridge pump seal

,

mechanical seal replacement for Grundfos

,

43mm pump seal cartridge replacement

Tên sản phẩm:
Phốt bơm mực Grundfos 43mm
Kích cỡ:
43mm
Ứng dụng:
xử lý chất lỏng công nghiệp nặng
Áp lực:
lên đến 1Mpa
Mã HS:
8484200090
Nhiệt độ:
-30 đến +200
Tốc độ:
15m/giây
Các bộ phận kim loại:
SS304, SS316
Tên sản phẩm:
Phốt bơm mực Grundfos 43mm
Kích cỡ:
43mm
Ứng dụng:
xử lý chất lỏng công nghiệp nặng
Áp lực:
lên đến 1Mpa
Mã HS:
8484200090
Nhiệt độ:
-30 đến +200
Tốc độ:
15m/giây
Các bộ phận kim loại:
SS304, SS316
Mô tả
Grundfos Cartridge Pump Seal 43mm
Grundfos Cartridge Pump Seal 43mm
Grundfos Cartridge Pump Seal 43mm
In high-flow water supply and heavy industrial fluid handling, the 43mm shaft diameter is the standard specification for the larger Grundfos vertical multistage pump ranges, specifically the CR32, CR45, CR64, and CR90 series. Given that these pumps are typically equipped with high-power motors (up to 45kW and above), the mechanical seal must maintain absolute integrity under high torque, extreme axial thrust, and severe pressure fluctuations.
Our 43mm Cartridge Seal is engineered as a premium alternative to the original HQQE/HQQV series. Featuring a hydraulically balanced architecture, it is capable of sustaining operating pressures up to 30 bar. Unlike traditional component-style seals, this cartridge design eliminates installation errors and protects expensive pump shafts via an integrated sleeve, serving as a mission-critical upgrade to improve your system's Mean Time Between Failure (MTBF).
Technical Matrix (43mm Series)
Parameter Specifications Engineering Insights
Bore/Shaft Size 43mm Optimized for CR32 / 45 / 64 / 90 series
Max Operating Pressure ≤ 30 bar (435 psi) Balanced design to reduce face loading
Temperature Range -30°C to +120°C (Std) Custom versions up to +180°C available
Velocity Limit ≤ 25 m/s Suited for high-peripheral speed applications
Seal Face Materials SiC / Tungsten Carbide (TC) Superior thermal conductivity to prevent heat checking
Secondary Seals EPDM (HQQE) / Viton (HQQV) Optimized for chemical and thermal compatibility
Structural Metal AISI 316 Stainless Steel Enhanced resistance to pitting and crevice corrosion
Professional Analysis: Why 43mm Requires Specialized Cartridge Engineering
  • High-Torque Transmission Stability: Pumps in the 43mm bracket generate immense starting torque. Our seals feature reinforced drive lugs. The torque is transmitted through the rigid metal sleeve rather than the elastomer, preventing catastrophic rubber bellows shear during rapid motor ramp-up.
  • Hydraulic Balancing Technology: At larger shaft diameters, the closing force exerted by hydraulic pressure can be overwhelming. A non-balanced seal would suffer from rapid wear due to excessive face friction. Our balanced 43mm design optimizes the pressure-area ratio, ensuring a stable, micron-thick lubricating film even under high-head conditions.
  • Shaft Protection & Longevity: Replacing a 43mm Grundfos pump shaft is a high-cost operation. The cartridge unit incorporates an internal stainless steel sleeve; all O-ring movement occurs against the sleeve rather than the shaft, effectively eliminating shaft scoring and fretting corrosion.
  • Standardized Coding Compliance:
    • HQQE (EPDM): Recommended for boiler feed water and municipal supply where resistance to hot water and sterilization chemicals is required.
    • HQQV (Viton/FKM): Essential for industrial cooling, process water with chemical additives, or any media containing hydrocarbons.
Expert Q&A & Maintenance Insights
Q: Why are 43mm seals more prone to "Heat Checking" than smaller sizes?
A: As the shaft diameter increases, the peripheral velocity at the seal faces rises sharply, generating significant frictional heat. We utilize Reaction Bonded Silicon Carbide (RBSiC) for our 43mm faces, which provides the high thermal conductivity necessary to dissipate heat and prevent thermal stress cracking.
Q: What is the most critical step when installing a 43mm Cartridge Seal?
A: The management of the assembly spacers (set plates). You must tighten all grub screws (set screws) to the shaft before removing the set plates. For a 43mm shaft, even a slight axial misalignment will alter the spring pre-load, leading to premature leakage or face instability.
Q: Can I order based on Grundfos Part Numbers?
A: Yes. Our 43mm units are direct replacements for common OEM numbers such as 96531299 (HQQE) and 96531300 (HQQV), ensuring a seamless fit-and-function match.
Q: How do I determine if an upgrade to Viton (HQQV) is necessary?
A: If your process media contains trace oils, cleaning agents, or if the water temperature fluctuates with organic content, Viton is the safer choice due to its broader chemical resistance profile compared to EPDM.
Product Advantages
  • Spring unit averted from the product so no sticking and clogging of the springs
  • Safe operation (no fractures) because of seal face locking by square pin
  • Suitable for pressure reversals
  • Operation in vacuum without additional seat locking possible
  • No damage of the shaft by a dynamically loaded O-Ring
  • Small installation sizes
  • Best suitable for conversions, no adaptations of the pump
  • Insensitive to solid containing and abrasive media
  • Advantages of a balanced seal even with plain shafts
  • Insensitive to shaft movements because of the stationary design
Application Areas
  • 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, MoneyGram
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
Gửi yêu cầu của bạn
Vui lòng gửi yêu cầu của bạn và chúng tôi sẽ trả lời bạn càng sớm càng tốt.
Gửi