Features:

Single Face Mechanical Seals Shaft Seal For Sewage Pump GB103.

1. Dependent on the direction of rotation
2. Single face
3. Unbalanced
4. Single spring
5. Non-cartridge mechanical seal

6. Medium: Water,oil,moderate corrosive and below medium

Operating Limited:

Material:

Advantages:

◆ For extreme temperature ranges
◆ No dynamically loaded o ring
◆ Very good self c;eaning effect
◆ Suitable for low-end srerile applications

Application:

Strong corrosive fluids, such as sulphuric, nitric, phosphoric or hydrochloric acids.

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

Product & Application Basics

• Q1: What is the primary function of the GB103 Water Pump Mechanical Seal?
  A1: The GB103 Water Pump Mechanical Seal creates a reliable, leak-free barrier between the rotating pump shaft and the stationary housing, specifically designed to prevent the escape of pumped fluids in centrifugal pump applications.

• Q2: For which specific pump types is the GB103 Water Pump Mechanical Seal designed?
  A2: The GB103 is a standardized cartridge mechanical seal commonly engineered for various end-suction centrifugal pumps, including general service water pumps, cooling water pumps, and hot water circulation pumps.

Installation & Handling

• Q3: What are the critical pump tolerances required for a successful installation of the GB103 Water Pump Mechanical Seal?
  A3: For reliable operation, the pump must meet strict mechanical conditions: shaft axial play ≤ 0.10 mm, shaft radial runout ≤ 0.04 mm, and seal chamber face squareness ≤ 0.04 mm.

• Q4: What is the correct procedure to install the GB103 Water Pump Mechanical Seal?
  A4: Always follow the manufacturer's manual. Key steps include cleaning all components, lubricating O-rings with the fluid to be pumped, sliding the cartridge onto the shaft without hammering on the seal faces, and evenly tightening the gland bolts. Crucially, the pump must be primed with fluid before start-up to prevent instant dry-running damage.

Material Selection & Customization

Q5: How do I select the appropriate seal face materials for my specific operating conditions when using the GB103 Water Pump Mechanical Seal?

A5: The choice of seal face materials is critical for determining the service life and reliability of the seal. The selection should be based on the specific characteristics of the fluid being pumped. Please refer to the table below for general guidance.

Q6: How do I choose the correct O-ring material for the GB103 Water Pump Mechanical Seal?

A6: The O-ring material must be compatible with both the pumped fluid and the operating temperature. Common options include:

• Nitrile Rubber (NBR): Suitable for petroleum-based oils and water at moderate temperatures.

• Ethylene Propylene Diene Monomer (EPDM): Ideal for hot water, steam, and weak acids/bases, with good weather resistance.

• Fluoroelastomer (FKM/Viton®): A versatile choice for a wide range of chemicals, oils, and elevated temperatures.

• Perfluoroelastomer (FFKM/Kalrez®): Used for extreme chemical environments and very high temperatures.