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  • API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal
  • API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal
  • API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal
  • API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal
  • API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal
  • API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal
API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal

API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal

  • 10 - 499 Sets
    $28
  • 500 - 999 Sets
    $26
  • >= 1000 Sets
    $24

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Leak Prevention in Plunger Pumps: Designed to ensure airtight and watertight seals in triplex plunger pumps, preventing fluid leakage under high-pressure conditions.
  • Material Durability: Constructed with HNBR (Hydrogenated Nitrile Butadiene Rubber), rubber, and plastic to withstand extreme temperatures, chemical exposure, and abrasive environments.

Key features

  • 1. Advanced Material Technology

    • With HNBR (Hydrogenated Nitrile Butadiene Rubber) and corrosion-resistant materials, this seal ring delivers superior resistance to harsh chemicals, oils, and high temperatures compared to standard NBR seals. Ensure durability in demanding industrial environments.*

  • 2. Engineered Interactive Design

    • With rounded edges and textured surfaces, this seal ring minimizes stress on mating surfaces and ensures secure, slip-resistant installation. Reduces wear and tear for longer component lifespan.

  • 3. High-Performance Parameters

    • With a robust design optimized for 4.1/2-inch triplex plunger pumps, this seal handles high-pressure and high-temperature applications, outperforming generic seal rings in critical operational scenarios.

  • 4. Industrial Scenario Solutions

    • Designed for continuous operation in pumps, compressors, and valves, this seal prevents leaks and maintains system integrity, ideal for 24/7 industrial use. Mitigates downtime and safety risks.

  • 5. API-Certified Reliability

    • Certified to API (American Petroleum Institute) standards, this seal ensures compliance with industry-grade performance and safety requirements for oil, gas, and heavy machinery applications.

Product details

API Spm Ht-400 4 1/2 Inch Triplex Plunger Pump Packing Rubber Seal Ring Spm Packing Seal

The API Spm Ht-400 4½" Triplex Plunger Pump Packing Seal Ring is engineered for high-pressure, high-temperature applications in pumps, compressors, and valves. Crafted from HNBR rubber and reinforced plastic, it ensures leak-proof performance while accommodating customization for diverse industrial needs.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialHNBR rubber, reinforced plasticChemical resistance in harsh environments
Size4½" diameter (customizable)Triplex plunger pumps and valves
DesignRounded edges, textured surfaceReduces stress and prevents slippage
Temperature Range-30°C to +150°CHigh-temperature industrial machinery

Customization guide

  • Material Customization: Adjust HNBR blend ratios to enhance chemical resistance or hardness for specific fluids.
  • Size Customization: Modify dimensions to fit non-standard plunger diameters or valve assemblies.
  • Surface Treatment: Add anti-corrosive coatings or textured finishes for improved grip in dynamic systems.

Get inspired

With its HNBR rubber core and reinforced plastic structure, this seal ring delivers unmatched durability in pumps and valves. Whether you need resistance to aggressive chemicals or extreme temperatures, our customizable solutions ensure seamless integration into your system.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Chemical ResistanceStandard HNBR+20% enhanced blend+40% premium formula
Pressure Rating2000 PSI2500 PSI3000 PSI
Temperature Tolerance-30°C to +120°C-30°C to +150°C-30°C to +180°C

Supplier's note

  1. Technical Breakthroughs:

    • HNBR Material: Triple the chemical resistance of standard rubber, ideal for oil/gas environments.
    • Rounded Edges: Reduces stress by 30%, extending seal life in high-vibration systems.
    • Customizable Size: Fits 95% of industrial plunger pumps, eliminating compatibility issues.

  2. Version Selection Guide:

    • Base Model: Suitable for standard pumps with moderate pressure/temperature demands (e.g., water treatment).
    • Advanced Model: Recommended for chemical processing plants requiring enhanced durability.
    • Pro Model: Best for extreme conditions (e.g., oil refineries) where 3000 PSI and +180°C tolerance are critical.

With the Pro version’s 40% higher chemical resistance, you can safely handle corrosive fluids like sulfuric acid. Pair its high-temperature tolerance with reinforced plastic to ensure zero leakage in refinery operations.

Frequently asked questions

  • Which seal ring is best suited for high-pressure applications in API Spm HT-400 Triplex Plunger Pumps?

  • What are the advantages of HNBR material over standard rubber in plunger pump seals?

  • How do I clean and maintain the API Spm HT-400 seal ring to prevent leakage?

  • Can the API Spm HT-400 seal ring be customized for non-standard plunger pump sizes?

  • Is the HNBR material in this seal ring FDA-approved for food-grade applications?

  • What makes this seal ring suitable for aggressive chemical environments?

  • What are the installation best practices for the API Spm HT-400 seal ring?

  • How does the lifespan of this seal compare to standard rubber seals?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Metallic SealsHigh-pressure pumps, industrial valvesTemperature Resistance: 300°C (ASTM E1461) ▲ 350°C (Our Advanced)Durable, withstands extreme pressure and temperature (e.g., oil refineries)Prone to corrosion in acidic/chemical environments; heavier and costlier
Polymeric Seals (HNBR)Chemical processing, food-grade systemsChemical Resistance: 50+ chemicals (ASTM D543) ▲ 70+ (Our Advanced)Flexible, lightweight, resists aggressive chemicals (e.g., petrochemicals)Lower temperature limit (max 150°C); weaker under extreme pressure
Ceramic SealsHigh-temperature furnaces, abrasive useHardness: 9H (Mohs Scale) ▲ 9.5H (Our Advanced)Abrasion-resistant,耐高温 up to 1200°C (ISO 1412)Brittle, requires precise installation; expensive
Composite SealsAerospace, automotive enginesPressure Rating: 6000 PSI (ISO 10709) ▲ 7000 PSI (Our Advanced)Combines metal strength and polymer flexibility for complex systemsHigh cost; complex manufacturing process
Customized SealsTailored applications (e.g., pharma)Custom Material: Resists 10+ specific chemicals (ASTM F739) ▲ 20+ (Our Advanced)Tailored to unique requirements (e.g., FDA-compliant food-grade seals)Longer lead times; higher unit cost
Standard Industrial SealsHVAC, general machineryCost-Effective: $5/unit (ISO 9001) ▲ Enhanced durability (Our Advanced)Affordable, widely available for routine applicationsLimited chemical/temperature resistance; short lifespan under harsh conditions

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