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

Product Introduction

This specialized parts kit is engineered exclusively for Mission 1-7/8 inch centrifugal pumps, including popular models like 2x3Rx13, 3x3Rx13, 4x3Rx12, 5x3Rx12, and 6x3Rx13—workhorses in oilfield and industrial fluid transfer. It focuses on critical sealing and packing components that are the backbone of leak-free pump operation, including 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. Every component is a direct OEM replacement, designed to match the exact dimensions and performance of original Mission parts, eliminating the frustration of mismatched components that cause leaks and unplanned downtime. Manufactured to meet API 682 (2014 Edition) for shaft seal systems, ISO 9001 for quality management, and ATEX 2014/34/EU directives for explosive environments, these parts are backed by third-party certification and over 20 years of engineering expertise in pump sealing systems. Each component undergoes 100 hours of continuous pressure testing (up to 4.0MPa) before leaving the factory, ensuring reliability in the harshest conditions.

Core Purpose & Target User Needs

The core purpose of this kit is to solve the most costly pain points faced by target users: frequent seal leaks, difficulty sourcing compatible replacement parts, time-consuming maintenance, and compliance risks in hazardous environments. Our target users include onshore/offshore oilfield maintenance teams, industrial plant operators, pump service technicians, and fluid transfer contractors who rely on Mission 1-7/8 inch centrifugal pumps for critical operations—from drilling mud transfer to chemical processing and hazardous fluid handling. These users need parts that fit perfectly, install quickly, and withstand abrasive slurries, high pressures, and explosive atmospheres. 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 Zone 1/2 environments) and reduce unplanned downtime, which can cost hundreds of dollars per hour in lost productivity. Whether performing routine maintenance, repairing a failed seal, or upgrading to a more durable packing system, this kit delivers the reliability and compliance users demand.

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—all explained in simple, practical terms:

• Sealing Systems: The kit offers two stuffing box options to fit different needs. The packed stuffing box (052151310), paired with 5-ring graphite acrylic packing (052151200), provides cost-effective leak control for general applications, while the mechanical seal stuffing box (052146910) delivers superior leak protection (≤2 drops per minute) for hazardous or high-pressure work. The mechanical seal tungsten repair kit (WVBUP0118) lets you fix minor seal damage on-site, so you don’t have to wait for a full replacement seal—saving hours of downtime. Our graphite acrylic packing is treated with a special coating that reduces friction, lasting 450 operating hours, while the premium king packing (052167500) offers enhanced abrasion resistance for harsh slurry environments, lasting 600 operating hours. The 1-7/8 in. injectable packing starter kit (WVUT060109) allows for quick, non-stop refills, cutting maintenance time from hours to minutes.

• 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 ideal for offshore and humid environments, and the 1/4-18 NPT grease fitting (WWW00C004) ensures easy lubrication access.

• Compliance & Safety Features: The ATEX name plate (052170700) ensures compliance with EU ATEX 2014/34/EU directives—mandatory for equipment used in explosive atmospheres (Zone 1/2) common in oilfields and chemical plants. 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, ensuring leak rates meet EPA 21 requirements (≤1000ml/m³), and the wear plate (052151810/3779-30) protects the stuffing box from abrasive damage, extending the entire sealing system’s life by 500 operating hours.

Applicable Working Conditions

This parts kit is tailored for the most demanding industrial and oilfield environments, specifically designed for Mission 1-7/8 inch centrifugal 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 here, as it minimizes leakage of hazardous fluids and meets ATEX safety requirements.

• Chemical processing plants, where pumps transfer corrosive or toxic fluids. The graphite acrylic packing (052151200) and mechanical seals resist chemical attack, ensuring safe, leak-free operation and compliance with environmental regulations.

• Industrial fluid transfer systems, including wastewater treatment and power generation, where leak-free operation prevents environmental contamination and equipment damage. The packed stuffing box is a cost-effective solution for these applications, while the injectable packing kit simplifies maintenance.

• Mining operations, where pumps handle abrasive slurries with particle sizes up to 2mm. The wear plate (052151810) and king packing (052167500) protect the sealing system from abrasion, reducing replacement frequency and downtime.

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—critical for avoiding fines and safety incidents.

Maintenance & Engineer Practical Tips

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

1. Pre-Installation Check: Always match the part number to your pump model (e.g., 052151310 for packed stuffing boxes, 052146910 for mechanical seal stuffing boxes). Inspect packing and seals for tears or damage—even small flaws can cause big leaks. For ATEX applications, make sure the ATEX name plate (052170700) is properly installed; missing or incorrect name plates can lead to compliance violations.

2. Packing Installation: When installing the 5-ring graphite acrylic packing (052151200), align the lantern ring with the grease fitting (WWW00C004) to ensure proper lubrication. Tighten the packing gland bolts evenly—over-tightening causes overheating (gland temperature over 75°C), while under-tightening leads to excessive leakage (more than 10 drops per minute). For injectable packing (WVUT060109), use the专用 hydraulic gun to refill without stopping the pump—saving valuable production time.

3. Mechanical Seal Maintenance: Never run the pump dry—it will ruin the mechanical seal faces irreparably. Use the WVBUP0118 tungsten repair kit for minor seal damage; replace the entire seal if leakage exceeds 5 drops per minute. Check seal alignment monthly with a dial indicator—misalignment (runout >0.05mm) is a top cause of premature seal failure.

4. Lubrication & Care: Lubricate the stuffing box and bearings every 40 operating hours using the 1/4-18 NPT grease fitting (WWW00C004) with high-temperature lithium grease. For oil-lubricated pumps, use the dipstick (WWW003005) to check oil levels—low oil causes bearing damage and seal failure. Replace grease seals (3943-14) every 600 operating hours to prevent lubricant leakage.

Authoritative Standards & Unique Value

All parts in the kit comply with globally recognized standards to ensure reliability and compliance, with unique benefits that set them apart from generic alternatives:

• 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—no modifications needed.

• 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 outperforming 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 for 1,000 hours to ensure reliability. We also conduct field testing in 14 different oilfield and industrial locations, including the Permian Basin and North Sea, to validate performance in real-world conditions.

We supply the following spare parts:

Field Fault Repair Cases

These real-world cases, from actual oilfield and industrial sites, show 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 had 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 maintenance team used our kit to replace the 5-ring packing (052151200), gland set (052146700), and tightened the gland bolts to 170 N·m. Post-repair: leakage reduced to 3 drops/min, pressure restored to 1.6MPa, and the packing lasted 450 operating hours. Customer feedback: “We used to replace packing every 2 weeks—this kit’s packing lasted over a month, saving us 8 hours of maintenance time.”

2. North Sea Offshore Platform (ATEX Zone 1) | Mission 3x3Rx13 Pump: A mechanical seal failure caused hazardous fluid leakage (22 drops/min), violating ATEX safety regulations. The team installed our mechanical seal stuffing box (052146910) and used the WVBUP0118 repair kit to fix minor seal damage. Post-repair: leakage dropped to 2 drops/min, the pump met ATEX 2014/34/EU standards, and vibration stayed at 61 dB. Customer feedback: “Offshore safety is non-negotiable—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 fell to 4 drops/min, bearing temperature dropped 22°C to 63°C, and no contamination was observed after 6 weeks. Customer feedback: “Abrasive slurry destroys generic parts—this kit’s wear plate and packing held up perfectly, even with 24/7 operation.”

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: the pump was fully ATEX-compliant, no misalignment, and leakage stayed at 3 drops/min. Customer feedback: “Compliance inspections are strict—this kit had the ATEX parts we needed, and the screws kept everything secure through constant vibration.”

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 1-7/8 inch centrifugal pumps (2x3Rx13, 3x3Rx13, 4x3Rx12, 5x3Rx12, 6x3Rx13). 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—eliminating the hassle of sourcing individual parts. Built to meet API 682, ISO 9001, and ATEX standards, with enhanced durability and engineer-validated performance, these parts 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