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Product Details
Model NO.:
Stator
Pump Package:
Carton And Wooden Cases
Testing:
Dynamic Balancing
Types Of Welding Parts:
OEM/ODM
Material Standard:
ASTM, ANSI, SAE, Uns, DIN, En, ISO, Toct
Material:
Sbbpf®, Epbpf®, VI, CB, PTFE, Eh, Vn
Certificate:
ISO9001:2015, ISO14001:2004
Mould:
Investment Casting Mould, Sand Casting Mould
Pump Model.:
Nm011by02s12b, Nm021by02s12b Nm031by02s12b, Nm038b
Suitable Brand:
MONO
Transport Package:
Carton And Wooden Cases
Specification:
According To The Drawings
Trademark:
HydroBlue
Origin:
China
HS Code:
84139100
Production Capacity:
10, 000 Tons Per Year
Highlight:
MONO pump wear resistant rubber parts
,progressive cavity pump rotor stator
,MONO screw pump rubber components
Payment & Shipping Terms
Minimum Order Quantity
1
Price
50
Product Description
MONO Stator & Rotor – Progressive Cavity Pump Pumping Element Set
About Dongguan HydroBlue Co., Ltd.
DONGGUAN HydroBlue CO.,LTD. is a professional provider of overall technical solutions in the fields of fluid machinery and fluid engineering, industrial equipment automation, and frequency converters. The company has multi-professional technical talents, including a total of 8 professional technical talents in fluid engineering, electrical engineering, and electronic engineering. The company has long-term professional and technical cooperation with Jiangsu University, Chinese Academy of Sciences, and Guangdong University of Technology: Jiangsu University National Research Center of Pumps provides multi-stage stator liner radial loading analysis and rotor-stator interference modeling for MONO progressive cavity pump elements; Chinese Academy of Sciences contributes advanced wear-resistant alloy metallurgy and elastomer compounding research for extended pumping element life; Guangdong University of Technology supports precision CMM helix scanning and rotor-stator match clearance verification for consistent pumping performance.
Share your pump model and stator & rotor requirements with us — our engineering team will confirm compatibility and provide a detailed technical response.
OUR BRANDS & SERVICES
Our proprietary brand delivers complete technical solutions for fluid machinery and engineering systems. We specialize in industrial control and drive equipment, mechanical seals, and international field engineering support. Through our ecosystem of specialized technologies and product brands, we provide clients with high-level technical advisory, commercial support, and integrated product solutions — including pumps, variable frequency converters, servo drives, PLC-HMI interfaces, industrial control cabinets, motors, mechanical seals and assemblies, couplings, gearboxes, and turnkey engineering services (overseas on-site 3D scanning reverse molding for pump replacement parts and equipment debugging by our dispatched engineers abroad).
Product Overview
MONO Stator and Rotor form the pumping element set (also called the rotor-stator assembly or pumping cartridge) at the heart of a MONO progressive cavity pump. The rotor is a single-helix precision-machined shaft that rotates eccentrically inside the stator — a steel housing lined with a double-helix elastomer profile. Together they create a series of sealed cavities that progress axially from the suction end to the discharge end, producing a smooth, pulsation-free, positive displacement flow.
The pumping element set is the critical wear component in a progressive cavity pump. The rotor surface continuously slides against the stator liner under interference fit, making material selection, surface coating, and elastomer compatibility the primary factors determining pump service life and volumetric efficiency.
MONO pumps are widely used in water and wastewater, mining, chemical, food, and oil & gas industries. MONO stator liners are available in natural rubber, NBR, HNBR, EPDM, and FKM compounds. MONO rotors are manufactured from chrome steel, 316L SS, 17-4PH, and duplex stainless steels, with surface coatings including hard chrome plating, HVOF tungsten carbide, and Stellite overlays.
Our MONO replacement pumping element sets are manufactured to the original rotor-stator geometry (pitch, lead, interference, and eccentricity), with CMM-verified helix profiles, material certification, and documented dimensional records.
Technical Specification
|
Category |
Details |
|---|---|
|
Product |
Pumping Element Set (Stator & Rotor Assembly) – MONO progressive cavity pump replacement |
|
Application |
MONO CD, CDX, LS, E, F series & other PCP models — contact for model compatibility |
|
Stator Head Type |
Single-head (double-helix), Multi-head, Tandem stator |
|
Stator Shell Material |
Carbon steel (standard), SS 304, SS 316 |
|
Stator Liner Material |
NR, NBR, HNBR, EPDM, FKM (Viton), PTFE-faced |
|
Rotor Material |
Chrome steel (EN42/SUJ2), 17-4PH SS, SS 316L, Duplex SS, Hastelloy |
|
Rotor Surface Coating |
Hard chrome (65–70 HRC), HVOF WC (70–75 HRC), Stellite 6, Ceramic (Al2O3) |
|
Temperature Range |
NR: -20 to 80°C; NBR: -20 to 100°C; HNBR: -20 to 150°C; FKM: -10 to 200°C; Rotor: up to 400°C with HVOF coating |
|
Pressure Rating |
Up to 24 bar per stage; total pump pressure determined by number of stages |
|
Interference Fit |
Pre-set interference between rotor OD and stator ID; varies by pump series and fluid type |
|
Standards |
DIN, EN, ISO, FDA (food-grade), WRAS (potable water) |
|
Manufacturing |
Stator: Compression molding, Vulcanization, Helix grinding; Rotor: CNC turning, Heat treat, Coating, Balancing |
|
Inspection |
Stator helical CMM, Rotor helical CMM, Rotor hardness and coating thickness, Stator durometer, Rotor-stator match test |
|
Certificate |
ISO9001:2015, ISO14001:2004 |
|
Delivery |
20–40 days after deposit; coated rotors and special liner compounds longer |
|
Payment |
70% TT in advance, balance against copy of B/L |
Stator Liner Selection Guide
|
Elastomer |
Temperature Limit |
Hardness (Shore A) |
Key Feature |
Typical MONO Service |
|---|---|---|---|---|
|
Natural Rubber (NR) |
80°C |
55–65 |
Highest abrasion resistance; best flex fatigue life |
Sludge, slurry, mining, wastewater, sand |
|
NBR (Buna-N) |
100°C |
60–75 |
Good oil & fuel resistance; economical |
Mineral oil, diesel, grease, water-based cutting fluids |
|
HNBR |
150°C |
65–85 |
Enhanced temperature and chemical stability |
Sour crude, high-temp oil, mildly abrasive chemical |
|
EPDM |
120°C |
55–70 |
Excellent water/steam/ketone resistance; FDA |
Hot water, dairy, beverage, pharma, clean service |
|
FKM (Viton) |
200°C |
70–90 |
Broadest chemical resistance; high-temp capability |
Aggressive chemicals, hot solvents, hydrocarbons |
Rotor Surface Coating Options
|
Coating Type |
Hardness |
Wear Resistance |
Corrosion Resistance |
Relative Cost |
Recommended Service |
|---|---|---|---|---|---|
|
Hard Chrome |
65–70 HRC |
Good |
Good |
1.0× (baseline) |
General water/oil, low abrasion, standard duty |
|
HVOF WC |
70–75 HRC |
Excellent |
Very good |
2.5–3.0× |
Severe slurry, mining tailings, high-solids transfer |
|
Stellite 6 |
40–50 HRC |
Very good |
Good |
1.5–2.0× |
High-temp, mixed corrosive + abrasive media |
|
Ceramic (Al2O3) |
80+ HRC |
Outstanding |
Excellent |
3.0–4.0× |
Ultra-severe abrasion, sand slurries, ash transfer |
Why Choose Our MONO Pumping Element Sets
- Matched Set — Rotor and stator are manufactured as a matched set, with interference fit (rotor OD vs stator ID) verified and documented
- Helix Geometry Accuracy — Both stator internal helix and rotor external helix are CMM-scanned against the MONO original geometry to ensure correct cavity seal line progression
- Liner-to-Shell Bond — Stator vulcanization parameters are controlled to produce a consistent elastomer-to-metal bond that resists delamination under continuous pressure cycling
- Coating Integrity — Rotor hard chrome, HVOF, and ceramic coatings are thickness-verified and bond-strength tested before assembly release
- FDA & WRAS Grades Available — FDA-compliant and WRAS-approved liner compounds available for MONO pumps in food and potable water service
Recommended Products
Contact Us at Any Time
Room 1904, Building 1, Zhongtang Tianan Digital City, No.89 Jinyuan Road, Zhongtang Town,Dongguan City, Guangdong Province, China.
