Product Introduction
Our GARDNER DENVER PZ-11 7×11 Mud Pump replacement parts lineup is comprehensive, covering every critical component needed to keep the pump operating at peak performance. We supply linersfor all sizes from 4″ to 7″, liner gaskets , a full range of pistons , valves , valve seats, springs, gaskets, piston rods, rod clamps , and fluid end modules. All parts are 100% interchangeable with GARDNER DENVER OEM parts, with a 99.9% quality pass rate, ensuring consistent performance and easy installation.
Function & Structural Features
Each component is designed to fulfill a critical role in the PZ-11 7×11 Mud Pump’s operation: Liners form the inner chamber of the pump, containing drilling mud and withstanding high pressures up to 7500 PSIG—critical for maintaining a consistent flow rate of 120-632 GPM (depending on liner size). Pistons create the reciprocating motion needed to draw in and discharge mud, with different bonding materials tailored to mud abrasiveness: urethane-bonded pistons offer superior wear resistance for high-abrasion mud, while rubber-bonded options provide flexibility for less harsh conditions. Valves and seats control mud flow direction, preventing backflow and ensuring efficient pumping. Gaskets (G-692*, G-798*) prevent mud leakage, protecting internal components from corrosion and ensuring pressure integrity—leakage can reduce pump efficiency by up to 20% and lead to costly repairs.
Applicable Working Conditions
Our GARDNER DENVER PZ-11 7×11 replacement parts are engineered to perform in the extreme conditions typical of oil and gas drilling sites: temperature fluctuations from -40°F to 120°F, high humidity (85-95%), saltwater exposure (for offshore operations), and constant exposure to abrasive drilling mud. They are suitable for both onshore and offshore drilling, as well as remote locations where access to replacement parts is limited. The parts are designed to handle continuous 24/7 operation, withstanding the constant stress of reciprocating motion and high-pressure mud circulation—critical for minimizing downtime in high-volume drilling projects.
Maintenance & Care Recommendations
To maximize the service life of your GARDNER DENVER PZ-11 7×11 Mud Pump and our replacement parts, follow these practical guidelines: Inspect liners every 500 operating hours for wear—replace if the inner diameter exceeds the OEM tolerance by 0.005 inches . Check pistons for seal damage; replace if the seal lip is cracked or compressed more than 0.2mm. Clean valves and seats monthly to remove mud buildup, which can cause sticking and reduce flow rate by 15%. Inspect gasketsevery 300 hours for hardening or leaks—replace immediately to prevent pressure loss. Lubricate rod components every 400 hours with high-temperature greaseto reduce friction. Store replacement parts in a dry, climate-controlled areato avoid rust or contamination—critical for maintaining part integrity.
We supply the following spare parts:
| LINERS | LINERGASKETS | PISTONS | PISTONRUBBER | |||||
| SIZE | PARTNUMBER | PARTNUMBER | URETHANEBONDED | RUBBERBONDED | ENDURANCEBONDED | REPLACEABLERUBBER | PARTNUMBER | |
| 4__ | TS-0197-40HP | G-692 * | LLU-40-K15 | LL-40-K15 | HPW-40-K15 | I-40-K15 | TM-40-KR | |
| 4 1/2″ | TS-0197-44HP | G-692 * | LLU-44-B15 | LL-44-B15 | HPW-44-B15 | I-44-B15 | TM-44-BR | |
| 5″ | TS-0197-50HP | G-692 * | LLU-50-B15 | LL-50-B15 | HPW-50-日 15 | I-50-B15 | TM-50-BR | |
| 5 1/2″ | TS-0197-54HP | G-692 * | LLU-54-B15 | LL-54-B15 | HPW-54-B15 | I-54-B15 | TM-54-BR | |
| 5 3/4″ | TS-0197-56HP | G-692 * | LLU-56-B15 | LL-56-B15 | HPW-56-日 15 | I-56-B15 | TM-56-BR | |
| 6″ | TS-0197-60HP | G-692 * | LLU-60-B15 | LL-60-B15 | HPW-60-日 15 | I-60-B15 | TM-60-BR | |
| 6 1/4″ | TS-0197-62HP | G-692 * | LLU-62-L15 | LL-62-L15 | HPW-62-L15 | I-62-L15 | TM-62-LR | |
| 6 1/2″ | TS-0197-64HP | G-692 * | LLU-64-L15 | LL-64-L15 | HPW-64-L15 | I-64-L15 | TM-64-LR | |
| 6 3/4″ | TS-0197-66HP | G-692 * | LLU-66-L15 | LL-66-L15 | HPW-66-L15 | I-66-L15 | TM-66-LR | |
| 7″ | TS-0197-70 HP | G-692 * | LLU-70-L15 | LL-70-L15 | HPW-70-L15 | I-70-L15 | TM-70-LR | |
| VALVES, SEATS, SPRINGS | GASKETS | |||||||
| 4 WEB DESIGN | 3 WEB DESIGN | FULL OPEN (1) | FULL OPEN (2) | PART NUMBER | ||||
| VALVE | TS-7-EEF | TS-20 24 8 2 | TS-0985M | TS-7-V1 | VALVE COVER GASKET | G-798 * | ||
| SEAT | TS-7-DDB1 | TS-202039 | TS-1370M | TS-7-S1 | CYLINDER HEAD GASKET | G-798 * | ||
| SPRING | TS-5710-115 | – | – | TS-5710-115L | WEAR PLATE GASKET | – | ||
| INSERT(Urethane) | TS-7-W1 | TS-201106 | TS-7-MI | TS-7-FI | EXTENSION ROD SEAL | TS-2011872 | ||
| INSERT(Rubber) | TS-7-WR | TS-201107 | – | – | EXTENSION ROD BAFFLE | TS-PZ840 | ||
| PISTON ROD & EXTENSION ROD | ||||||||
| ROD CLAMP | PISTONRODSTUD | PISTONNUT | THREADED TYPE PISTON ROD | CLAMP TYPE PISTON ROD | SUB ROD | THREADED TYPE EXTENSION ROD | CLAMP TYPE EXTENSION ROD | |
| TMPZ11-03-08 | N/A | TM-NUT | TM-201 | TM-200 | N/A | TMPZ9-01-06T | TMPZ11-01-06 | |
| FLUID END MODULE | ||||||||
| FLUID END MODULE STUDDED | MODULE SEAL SET | STUDS & NUTS SET | ||||||
| TS-202PZL029B | TMPZ11-SEALKIT | TMPZ11-STUDSET | ||||||
On-Site Fault Repair Cases
Here are three real-world cases of GARDNER DENVER PZ-11 7×11 Mud Pump failures solved using our replacement parts, demonstrating reliability, compatibility, and minimal downtime:
Case 1: Liner Wear & Mud Leakage
A drilling site reported significant mud leakage and a 23% drop in flow rate from their PZ-11 7×11 pump. Inspection revealed excessive wear on the 5″ linerand a damaged liner gasket. Replacing both parts with our compatible components stopped the leakage, restored flow rate to 320 GPM , and reduced maintenance time to 1.2 hours. The new liner has been in service for 800+ operating hours with no signs of excessive wear.
Case 2: Valve Sticking & Pressure Loss
An offshore drilling rig’s PZ-11 pump experienced valve sticking, causing inconsistent pressure and reduced efficiency. Investigation found the 4-web design valve (TS-7-EEF) and seatwere worn and clogged with mud. Replacing both components with our parts restored smooth operation, allowing the pump to maintain 7500 PSIG of pressure and reducing energy consumption by 17%. The repair was completed in 1.5 hours, avoiding costly downtime.
Case 3: Fluid End Module Seal Failure
A PZ-11 pump suffered severe mud leakage from the fluid end module due to a worn seal set. Replacing the seal set with our compatible part restored the seal integrity, allowing the pump to resume full operation within 1 hour. The new seal set has been in service for 650+ hours with no leaks, even in the abrasive offshore mud environment.
FAQ (Frequently Asked Questions)
| Question | Answer |
| Are your parts compatible with the GARDNER DENVER PZ-11 7×11 Mud Pump? | Yes, all our parts are engineered to match the exact specifications of the GARDNER DENVER PZ-11 7×11 Mud Pump, including liners, pistons , valves , and fluid end components. They are 100% interchangeable with OEM parts, meet API 7K and ISO 9001:2015 standards, and undergo strict quality testing to ensure compatibility and performance. |
| What is the service life of your PZ-11 liners and pistons? | Our heat-treated linershave a service life of 1,800+ operating hours, 40% longer than standard liners. Urethane-bonded pistonslast 1,200+ operating hours, while rubber-bonded pistons last 800+ operating hours—all with an average mean time between failures (MTBF) of 7,800 hours, aligning with industry reliability standards for mud pump components. |
| How do I choose the correct part for my PZ-11 7×11 Mud Pump? | Refer to your PZ-11 7×11 Mud Pump parts list for the part number or size: for liners, match the size with the corresponding TS-0197 part number; for pistons, select the bonding type based on your mud’s abrasiveness; for valves and gaskets, use the part numbers provided. Our team can also verify part compatibility using your pump’s serial number. |
Conclusion
Maintaining the performance and reliability of your GARDNER DENVER PZ-11 7×11 Mud Pump is critical for minimizing downtime and maximizing drilling efficiency. Our replacement parts are designed to address the unique challenges of mud pump operation—abrasive mud, high pressure, and harsh environments—while ensuring seamless compatibility and long service life. All parts meet API 7K, ISO 9001:2015, and ANSI/NACE MR0175 standards, providing the quality and durability you need to keep your operations running smoothly. Whether you need liners, pistons, valves, gaskets, or fluid end components, we offer a comprehensive selection of parts to cover all your replacement needs. To ensure you get the correct components, reference the part number from your PZ-11 7×11 parts list when placing your order.
