Diaphragms, Plates,Sealing Rings & Gaskets

Filter press plate,250-2000MM,Qingdao Britop, filter pres supplier

Diaphragms, Plates,Sealing Rings & Gaskets

Filter Press Rubber Diaphragms, Plates,Sealing Rings & Gaskets Compliant with industrial quality standards, Our filter plates offer reliable performance and low maintenance needs, serving as ideal replacements or original parts for many top brand filter press systems.

As a trading company focusing on high-quality filter press spare parts, we aim to address the core needs of industrial clients (e.g., coal washing, chemical solid-liquid separation, mining filtration) for compatibility, durability, and cost control. We manufacture replacement part for world top brand filter presses, which has been accepted and popular option for end-users worldwide.

Contact Qingdao Britop for more information if you are interested.

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1. Manufacturer’s Strengths

Filter press spare parts are “core consumables” for filtration equipment. Clients often worry about “equipment downtime due to mismatched parts” and “high replacement costs from poor-quality products”.

  • Nearly 20 Years of Specialized Experience: The manufacturer has focused on R&D and production of filter press rubber diaphragms, filter plates, and sealing components since 2001. It deeply understands the working conditions of filter equipment in industries like coal, chemicals, and metallurgy (e.g., high pressure, corrosion, high-frequency operation), ensuring its parts are better adapted to real-world usage scenarios and avoiding “inapplicable universal parts” issues.
  • Authoritative Certifications & Standardized Production: It obtained ISO9001:2008 Quality Management System Certification in 2009 and renewed the National Industrial Product Production License (Certificate No.: (Hebei)XK13-025-00040) in 2013. The entire process—from raw materials (e.g., high-wear-resistant rubber, corrosion-resistant metals) to production (equipped with flat vulcanizing machines, tensile testing machines, and sealing performance detectors)—is controllable. Product quality meets international and domestic industry standards, with no easy cracking or leakage during long-term use.
  • Global Supply & After-Sales Capacity: Its products are sold to over 30 countries and regions, serving more than 264 global clients. It has stable bulk production capacity (capable of meeting monthly orders of thousands of parts) and provides free technical consulting. After purchase, if clients encounter issues such as “part compatibility, installation and commissioning, or leakage troubleshooting”, they can quickly obtain technical support from the manufacturer, reducing equipment downtime losses.

The core filter press spare parts we offer mainly include rubber diaphragms, filter plates, and supporting sealing components. We align product advantages with the filtration pain points of clients in different industries (e.g., low efficiency, high wear, poor compatibility) to help clients intuitively see the “purchasing value”.

2.1 Filter Press Rubber Diaphragms: Solving Pain Points of “Slow Filtration, Easy Damage, High Costs”

Rubber diaphragms are key components for “filter cake pressing” in filter presses. Clients focus most on filtration efficiency, service life, and compatible pressure.

Core ProductsCore Advantages (Perceivable Benefits for Clients)Applicable Industries & Scenarios
1.6㎡ Cup-Type Rubber Diaphragm1. Efficient Pressing: The cup-type structure increases the filter cake contact area. Compared with ordinary flat diaphragms, the solid-liquid separation speed is increased by 15%-20%, allowing 10%-15% more materials to be processed in the same time and improving equipment capacity.
2. High-Pressure Resistance: Made of high-strength rubber, it can withstand the high-pressure working conditions of filter presses (compatible pressure up to 0.8-1.2MPa), with no easy tearing or aging. Its service life is 2-3 months longer than ordinary industry diaphragms, reducing replacement frequency and downtime.
3. Precise Compatibility: Standardized production according to the size of mainstream 1.6㎡ filter presses. The hole diameter and edge thickness perfectly match the equipment, requiring no grinding or modification during installation—direct replacement is feasible.
– Chemical Industry: Treatment of dye and pesticide wastewater, pressing of high-viscosity materials.
– Mining Industry: Dewatering of metal ore pulp (e.g., copper ore, iron ore) to reduce filter cake moisture content.
– Environmental Protection Industry: Dewatering of municipal sludge and industrial sludge to improve sludge treatment efficiency.
6㎡ Rubber Diaphragm1. Adaptation to Large Throughput: Designed specifically for large filter presses, each diaphragm covers a 6㎡ filtration area. It is suitable for batch processing scenarios (e.g., large coal washing plants, centralized treatment in chemical parks), reducing the number of equipment parts and lowering maintenance costs.
2. Strong Corrosion Resistance: Acid and alkali-resistant formulas are available. For corrosive materials in chemical and mining industries (e.g., acidic ore pulp, alkaline wastewater), it can prevent diaphragm damage from corrosion and extend the service cycle.
3. Two-Source Supply: It offers imported-quality models (for high-demand, high-pressure scenarios) and cost-effective domestic models. Clients can choose flexibly based on budget and working conditions to balance “quality” and “cost”.
– Coal Industry: Dewatering of clean coal in large coal washing plants, with a daily throughput of up to 1,000 tons.
– Chemical Industry: Wastewater treatment in large petrochemical enterprises, adapting to high-concentration, strong-corrosion materials.
– Metallurgy Industry: Dewatering of sludge from blast furnace gas washing water in steel plants, withstanding high-temperature (≤80℃) working conditions.

2.2 Filter Press Plates: Solving Pain Points of “Poor Sealing, Easy Deformation, Poor Compatibility”

Filter plates are the “filter chamber carriers” of filter presses. Clients’ core needs are good sealing (no leakage), high strength (no deformation), and compatibility with existing equipment.

Core ProductsCore Advantages (Perceivable Benefits for Clients)Applicable Industries & Scenarios
1500 Rubber Filter Plate1. Leakage-Free Sealing: The filter plate edge adopts precision molding technology, with a flatness error of ≤0.1mm. When used with diaphragms, it fits tightly, reducing filtrate leakage (leakage rate <0.5%) and avoiding material waste and workshop pollution.
2. Impact Resistance & No Deformation: Made of reinforced rubber, it has a compressive strength of ≥15MPa at room temperature, capable of withstanding the impact force of high-pressure pressing in filter presses. No bulging or deformation occurs during long-term use, avoiding filter chamber sealing failure caused by filter plate deformation.
3. Lightweight & Easy Installation: 30% lighter than metal filter plates of the same size, it requires no heavy equipment for installation. Two people can carry and replace it, reducing labor costs.
– Mining Industry: Filtration of ore pulp in small and medium-sized metal mines (e.g., gold mines, silver mines), adapting to 1500-type filter presses.
– Food Industry: Clarification and filtration of starch and fruit juice (food-grade rubber materials are available to meet food safety standards).
– Chemical Industry: Filtration of fine chemical products (e.g., pigments, coatings) in small and medium-sized chemical plants, avoiding material pollution.
LVPA20 Filter Plate1. Customized Compatibility: Targeting LVPA series filter presses (common in high-end filtration scenarios), it is replicated 1:1 according to the original factory size. The filter hole position and flow channel design are fully matched, avoiding reduced filtration efficiency and leakage caused by size deviations.
2. High Temperature & Corrosion Resistance: It can withstand temperatures up to 120℃, adapting to high-temperature material filtration (e.g., high-temperature filtrate after chemical reactions). Meanwhile, oil-resistant and solvent-resistant formulas are optional to meet special working condition requirements.
3. Long Service Life & Low Cost: Its surface is treated with an anti-stick coating, allowing easy filter cake detachment and reducing cleaning frequency. The coating is not easy to wear, and the overall service life is 30% longer than ordinary filter plates, lowering long-term procurement costs.
– Chemical Industry: Filtration of high-end fine chemicals (e.g., pharmaceutical intermediates, lithium battery materials), adapting to LVPA20-type filter presses.
– New Energy Industry: Filtration of lithium battery cathode materials (e.g., lithium iron phosphate), withstanding high-temperature and high-purity requirements.
– Pharmaceutical Industry: Filtration of pharmaceutical wastewater and APIs, meeting GMP hygiene standards (sterile materials are optional).
6㎡ Metal-Frame Filter Plate1. Super Strong Load-Bearing: Combining a metal frame (carbon steel/stainless steel optional) with a rubber filter surface, its overall load-bearing capacity is 50% higher than that of pure rubber filter plates. It adapts to high-pressure pressing scenarios (pressing pressure ≥1.5MPa) and is suitable for high-concentration, high-viscosity materials (e.g., coal slime, sludge).
2. Wear & Aging Resistance: The metal frame undergoes anti-rust treatment (stainless steel models can resist salt spray corrosion), and the rubber filter surface uses an anti-aging formula. When used in outdoor or high-temperature environments, no frame rusting or filter surface cracking occurs.
3. After-Sales Support: It provides filter plate maintenance guidance (e.g., local wear repair) to extend the secondary service life of filter plates and further reduce clients’ procurement costs.
– Coal Industry: Deep dewatering of coal slime in large coal washing plants, adapting to high-pressure filter presses.
– Environmental Protection Industry: Sludge dewatering in large municipal sewage treatment plants, with a daily throughput of up to 100 tons.
– Metallurgy Industry: Filtration of non-ferrous metal concentrates (e.g., bauxite), withstanding high-pressure and high-wear working conditions.

2.3 Supporting Sealing Components: Solving Pain Points of “Scattered Parts, Poor Compatibility, Easy Leakage”

Sealing components (e.g., sealing rings, gaskets) for filter presses are “auxiliary leakage-proof parts”. Clients often face usage issues due to “troublesome separate procurement” and “mismatch with main components”.

Core ProductsCore Advantages (Perceivable Benefits for Clients)Applicable Scenarios
Filter Press-Specific Sealing Rings & Gaskets1. Homologous Compatibility with Main Components: Developed and produced simultaneously with the rubber diaphragms and filter plates, their size and hardness (Shore hardness 60-70A) are fully matched. This avoids leakage caused by “mismatch between externally purchased sealing rings and main components”.
2. Customizable Materials: Based on working conditions, nitrile rubber (oil-resistant), fluororubber (high/low temperature resistant, strong corrosion resistant), and EPDM rubber (aging resistant) are optional to meet the material needs of different industries.
3. One-Stop Procurement: Sealing rings can be purchased together with diaphragms and filter plates—no need to find other suppliers, saving procurement time. Additionally, the price is more favorable (10%-15% savings for set procurement compared to separate purchases).
– All clients using the aforementioned rubber diaphragms and filter plates, requiring supporting replacement of sealing components.
– Clients who need to replace only sealing components but pursue compatibility with existing main parts of filter presses.

Choosing the Right Filter Press: Your Solid-Liquid Separation Expert

In industrial production, solid-liquid separation is a crucial and often complex process. The filter press is a highly efficient solid-liquid separation machine that plays a vital role in various fields, including chemical processing, mining, food production, and wastewater treatment. Selecting the right filter press machine can not only significantly boost production efficiency but also optimize resource utilization and reduce operational costs.

How a Filter Press Operates

filter press separates solids from liquids by applying pressure. The core process involves pumping a slurry into closed chambers formed by filter plates and filter cloths. Under pressure, the liquid (filtrate) passes through the filter cloth and is discharged, while the solid particles are retained, gradually accumulating to form a “filter cake.” This process is both efficient and stable, ensuring thorough solid-liquid separation.

Key Factors Influencing Filter Press Efficiency

To choose the best filter press, it is essential to understand the key factors that affect its performance:

  1. Slurry Characteristics: The particle size, concentration, and chemical composition of the slurry are the primary factors influencing filtration efficiency. Different slurry characteristics require matching with specific filter press models and filter cloths.
  2. Filter Plate Design: The design of the filter press plate directly impacts the filtration result. Common types include:
    • Chamber Filter Plate: Simple in structure, suitable for general solid-liquid separation, and forms a fixed-volume filter cake.
    • Membrane Filter Plate: Features an expandable membrane that can provide a secondary squeeze on the filter cake after filtration, further reducing its moisture content. This type is commonly used in industries requiring high purity or maximum dewatering.
    • Plate and Frame Filter Plate: Ideal for small-batch processing, offering excellent flexibility.
  3. Filtration Pressure: The appropriate filtration pressure is crucial. Excessive pressure can damage the filter cloth, while insufficient pressure leads to low separation efficiency.
  4. Filter Cloth Material: The selection of the filter cloth is key to ensuring the efficient operation of the filter press. The right material prevents clogging and maximizes liquid flow rate.

How to Choose a Filter Press

When selecting a filter press for your business, consider the following points:

  • Understand Your Application Needs: Determine the type and volume of slurry you need to process, as well as the required moisture content of the filter cake and the purity of the filtrate.
  • Compare Different Types: The chamber filter press is popular for its high efficiency and wide application in mining and chemical industries. The membrane filter press stands out for its superior dewatering capabilities in industries demanding high purity. The plate and frame filter press is an ideal choice for small-batch processing due to its flexibility.
  • Consider Long-Term Benefits: Investing in a high-quality filter press machine means lower maintenance costs and a longer service life, providing a significant long-term return on your investment.

Choosing a suitable filter press is a critical step in improving your production process efficiency and profitability. By thoroughly understanding your needs and consulting with professionals, you will be able to find the best solid-liquid separation solution for your business.

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