Mission Pump Sealing & Packing Parts Kit | 052151310, 052146910, 052151200 Models

Product Introduction

This specialized parts kit is engineered exclusively for Mission centrifugal pumps, focusing on critical sealing and packing components that are vital for leak-free operation and long service life. The kit includes key parts such as the packed stuffing box (part number 052151310), mechanical seal stuffing box (052146910), 5-ring graphite acrylic packing with lantern ring (052151200), and a full range of supporting hardware—from stuffing box cover bolts (WWG31H167) to ATEX name plates (052170700). Designed as direct OEM replacements, these parts are compatible with Mission pump models that require 1-7/8 inch sealing components, including popular industrial and oilfield pump variants. Every component is manufactured to meet API 682 (2014 Edition) and ISO 9001 quality standards, with rigorous testing to ensure compliance with ATEX directives for explosive environments—critical for oilfield and hazardous industrial applications. Backed by over 20 years of engineering expertise in pump sealing systems, our parts eliminate the common frustration of mismatched components and premature seal failure, delivering reliable performance when you need it most.

Core Purpose & Target User Needs

The core purpose of this kit is to solve the top pain points faced by target users: frequent seal leaks, difficult-to-source replacement parts, compatibility issues between generic components, and costly downtime due to sealing system failures. Our target users include onshore/offshore oilfield maintenance teams, industrial plant operators, pump service technicians, and fluid transfer contractors who rely on Mission pumps for critical operations like drilling mud transfer, chemical processing, and hazardous fluid handling. These users need parts that fit perfectly, install quickly, and withstand harsh conditions—whether they’re performing routine maintenance, repairing a failed seal, or upgrading to a more durable packing system. This kit eliminates the hassle of sourcing individual parts from multiple suppliers, providing a one-stop solution that ensures every component works in harmony. It addresses the urgent need for reliable sealing parts that meet safety standards (including ATEX for explosive zones) and reduce unplanned downtime, which can cost hundreds of dollars per hour in lost productivity.

Function & Structural Features

Each part in the kit is designed with specific functions to address common sealing challenges, with structural features that prioritize durability, ease of installation, and compliance with industry standards:

• Sealing Systems: The kit offers two stuffing box options—packed (052151310) and mechanical seal (052146910)—to suit different operating needs. The packed stuffing box, paired with 5-ring graphite acrylic packing (052151200), provides cost-effective leak control for general applications, while the mechanical seal stuffing box delivers superior leak protection (≤2 drops per minute) for hazardous or high-pressure environments. The mechanical seal tungsten repair kit (WVBUP0118) allows for quick on-site repairs, solving the problem of long wait times for replacement seals. Our packing is treated with a special coating that reduces friction, extending its service life to 450 operating hours—150 hours longer than generic packing.

• Supporting Hardware: The stuffing box cover bolts (WWG31H167) and gland assembly bolts (052137280/B3701A) are heat-treated to withstand torque up to 180 N·m, preventing loosening under vibration—a common cause of leaks. The packing gland set (052146700/7406-13A) is precision-machined to ensure a tight fit, while the deflector/water slinger (052147180/22707A) protects bearings from fluid contamination, extending bearing life by 600 operating hours. The 12 drive screws (WWGT06060) are corrosion-resistant, making them suitable for offshore and humid environments.

• Compliance & Safety Features: The ATEX name plate (052170700) ensures compliance with EU ATEX directives (2014/34/EU) for explosive atmospheres, a critical requirement for oilfield and chemical applications. The warning label (052151700) and name plate (052141400) provide clear safety instructions and equipment identification, reducing the risk of improper installation. All parts meet API 682 (2014 Edition) standards for shaft seal systems, ensuring leak rates meet EPA 21 requirements (≤1000ml/m³).

Applicable Working Conditions

This parts kit is tailored for the most demanding industrial and oilfield environments, specifically designed for Mission pumps operating in:

• Onshore and offshore oil & gas drilling platforms (ATEX Zone 1/2), where pumps handle drilling mud with solid content up to 30% and operate in temperatures ranging from -10°C to 120°C. The mechanical seal option is ideal for these environments, as it minimizes leakage of hazardous fluids.

• Chemical processing plants, where pumps transfer corrosive or toxic fluids. The graphite acrylic packing (052151200) and mechanical seals resist chemical attack, ensuring safe and reliable operation.

• Industrial fluid transfer systems, including wastewater treatment and power generation, where leak-free operation is critical to prevent environmental contamination and equipment damage. The packed stuffing box is a cost-effective solution for these applications.

• Mining operations, where pumps handle abrasive slurries. The wear plate (052151810/3779-30) protects the stuffing box from abrasion, extending the service life of the sealing system by 500 operating hours.

All parts comply with API 682 (2014 Edition), ISO 9001, and ATEX 2014/34/EU standards, ensuring they meet the strict regulatory requirements of hazardous and industrial environments.

Maintenance & Engineer Practical Tips

Based on over 12,000 hours of field experience, our senior sealing system engineers have compiled practical tips to maximize the life of your Mission pump’s sealing components and avoid common mistakes:

1. Pre-Installation Check: Always verify the part number matches your pump model (e.g., 052151310 for packed stuffing boxes, 052146910 for mechanical seal stuffing boxes). Inspect packing and seals for damage—even small tears in the packing can cause leaks. For ATEX applications, ensure the ATEX name plate (052170700) is properly installed to maintain compliance.

2. Packing Installation: When installing the 5-ring graphite acrylic packing (052151200), ensure the lantern ring is properly aligned with the grease fitting (WWW00C004) to allow proper lubrication. Tighten the packing gland bolts evenly—over-tightening causes overheating (gland temperature exceeding 75°C), while under-tightening leads to excessive leakage (more than 10 drops per minute).

3. Mechanical Seal Maintenance: For mechanical seals, avoid running the pump dry—this causes irreversible damage to the seal faces. Use the mechanical seal tungsten repair kit (WVBUP0118) for minor seal damage; replace the entire seal if leakage exceeds 5 drops per minute. Check seal alignment monthly using a dial indicator—misalignment (runout >0.05mm) causes premature seal failure.

4. Lubrication: Use the 1/4-18 NPT grease fitting (WWW00C004) to lubricate the stuffing box and bearings every 40 operating hours with high-temperature lithium grease. For oil-lubricated pumps, use the dipstick (WWW003005) to check oil levels—low oil levels cause bearing damage and seal failure.

Authoritative Standards & Unique Value

All parts in the kit comply with API 682 (2014 Edition) for centrifugal pump shaft seal systems, ISO 9001 for quality management, and ATEX 2014/34/EU for explosive atmospheres—ensuring global recognition and regulatory compliance. Our unique value propositions, backed by third-party testing and field validation, include:

• 100% OEM Compatibility: Each part is a direct replacement for Mission pump components, with exact matching of part numbers (e.g., 052151200 packing, 052146700 gland set) and dimensions. We’ve tested each part against original Mission equipment to ensure perfect fit and performance.

• Enhanced Durability: Our graphite acrylic packing lasts 450 operating hours, the mechanical seal lasts 800 operating hours, and the wear plate extends sealing system life by 500 operating hours—all exceeding generic parts by significant margins. The tungsten mechanical seal repair kit allows for 3 on-site repairs before full replacement, saving time and money.

• Engineer-Validated Performance: Each part undergoes finite element analysis (FEA) to resist fatigue and impact, and is tested under 1.5 times rated pressure (up to 4.0MPa) for 1,000 hours to ensure reliability. We also conduct field testing in 14 different oilfield and industrial locations to validate performance in real-world conditions.

We supply the following spare parts:

Field Fault Repair Cases

These real-world cases highlight how our parts kit solves common sealing system issues, with detailed data and genuine customer feedback:

1. Permian Basin, USA | Mission 2x3Rx13 Centrifugal Pump: The pump experienced excessive packing leakage (28 drops/min) and a 15% pressure drop (from 1.6MPa to 1.36MPa) due to worn packing and a loose gland set. The team used our kit to replace the 5-ring packing (052151200), gland set (052146700), and tighten the gland bolts to 170 N·m. Post-repair: leakage reduced to 3 drops/min, pressure restored to 1.6MPa, packing life extended to 450 hours. Customer feedback: “We used to replace packing every 2 weeks; this kit’s packing lasted over a month—saved us hours of maintenance.”

2. North Sea Offshore Platform (ATEX Zone 1) | Mission 3x3Rx13 Pump: A mechanical seal failure caused hazardous fluid leakage (22 drops/min), violating safety regulations. The team installed our mechanical seal stuffing box (052146910) and used the tungsten repair kit (WVBUP0118) to fix minor seal damage. Post-repair: leakage 2 drops/min, meets ATEX standards, vibration 61 dB. Customer feedback: “Offshore safety is critical—this kit had everything we needed to get back to operation in 1.5 hours, no compliance issues.”

3. Western Australia Mining Site | Mission 4x3Rx12 Pump: The stuffing box was damaged by abrasive slurry, causing leakage (30 drops/min) and bearing contamination. The team replaced the packed stuffing box (052151310), wear plate (052151810), and grease seals (3943-14). Post-repair: leakage 4 drops/min, bearing temperature 63°C (down 22°C), no contamination observed after 6 weeks. Customer feedback: “Abrasive slurry destroys generic parts—this kit’s wear plate and packing held up perfectly.”

4. Middle East Onshore Drilling (ATEX Zone 2) | Mission 5x3Rx12 Pump: Missing ATEX name plate and loose drive screws caused compliance issues and stuffing box misalignment. The team installed the ATEX name plate (052170700), replaced the 12 drive screws (WWGT06060), and realigned the stuffing box. Post-repair: full ATEX compliance, no misalignment, leakage 3 drops/min. Customer feedback: “Compliance is non-negotiable—this kit had the ATEX parts we needed, and the screws kept everything secure.”

Frequently Asked Questions (FAQs)

Purchase Guidance

This specialized Mission pump sealing and packing parts kit is your reliable solution for maintaining, repairing, and upgrading your Mission pump’s sealing system. Whether you need a packed stuffing box (052151310), mechanical seal stuffing box (052146910), packing (052151200), or supporting hardware, this kit provides all the components you need in one convenient package. Built to meet API 682, ISO 9001, and ATEX standards, with enhanced durability and engineer-validated performance, these parts eliminate the hassle of sourcing individual components and ensure leak-free operation in the most demanding environments. We provide full technical support to help you verify the correct parts for your pump model, answer maintenance questions, and troubleshoot any installation issues. Contact our sales team to inquire about stock availability and place your order—we’re committed to providing you with high-quality, compatible parts that keep your Mission pumps running smoothly, without costly downtime or compliance concerns.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619