Cryogenic Low-Temperature Canned Pump for LNG Refrigeration in Natural Gas Liquefaction Plants

• Customization: Available
• After-sales Service: on-Site&on-Line Service
• Warranty: 12 Months
• Model NO.: CLS, CLMA
• Max.Head: 80-110m
• Max.Capacity: >400 L/min
• Driving Type: Motor
• Impeller Number: Single-Stage Pump
• Working Pressure: High Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Position of Pump Shaft: Horizontal Pump
• Pump Casing Combined: Horizontal Split Pumps
• Mounting Height: Suction Centrifugal
• Impeller: Closed
• Usage: Pumps
• Applicable Medium: Ammonia, Freon, CO2, Silicon Oil
• Rated Pressure: 1-10 MPa
• Applicable Temperature: -100~+40
• Material: Carbon Steel, Stainless Steel
• Transport Package: Wooden Case
• Specification: Multi-stage, Single Stage
• Trademark: CHT TECK
• Origin: China
• HS Code: 8413709990
• Production Capacity: 1500PCS/Year
• Package Size: 60.00cm * 50.00cm * 60.00cm
• Package Gross Weight: 500.000kg

Product Description

Cryogenic Low-Temperature Canned Pump for LNG Refrigeration in Natural Gas Liquefaction Plants

1. Extreme Cryogenic Resistance: Engineered with specialized low-temperature materials (e.g., 316L stainless steel, Invar, or Monel alloys) that maintain mechanical integrity at temperatures as low as -196°C-critical for handling LNG (liquefied natural gas) which boils at -162°C. Resists brittleness, thermal shrinkage, and material fatigue caused by extreme cold cycles, ensuring structural stability in prolonged cryogenic service.
2. Hermetic Zero-Leakage Design: Features a seal-less canned motor structure with vacuum-tight static seals (metal bellows, PTFE gaskets) to eliminate dynamic shaft seals. Prevents LNG leakage-vital for safety (LNG is highly flammable with a low boiling point) and efficiency (leaks cause refrigerant loss and system pressure drops), while avoiding environmental risks from methane emissions.
3. Optimized for LNG Thermophysics: Hydraulic components (impellers, casings) designed to handle LNG's unique properties: low viscosity (0.1-0.2 cP at -162°C), high density (420-450 kg/m³), and rapid phase change sensitivity. Ensures stable flow rates (up to 200 m³/h) and discharge pressures (up to 150 bar) to support continuous LNG refrigeration cycles without cavitation or efficiency loss.

Product Description

Refrigeration Canned Motor Pumps
CLS / Single-stage Series-The CLS refrigeration pump is one with a single stage and in a high pressure internal circulation mode.

Work Scope
Capacity:5~65m³/h
Head:10~100m
Operating temp.:-50~+40ºC
Applicable Medim: ammonia(R717), Freon(R22/R12), silicon oil, CO2, etc.
Material/Pressure/Flanges
Casing: CS                                                                                       
Impeller: CS                                                     
Bearings: 2Cr13/FH82A
Shaft: 2Cr13                                                    
Rated Pressure: PN25                                     
Flange STD:GB/T9113.1 PN25

Pump Type	Motor Type	Pump Data		Motor Data
		Qmin (m³/h)	Qmax (m³/h)	Power(KW)	Rated Current (A)at 380V
CLS32-160	M3.0	4	18	3	8.0
	M4.5			4.5	11.1
CLS40-160	M3.0	4	22	3	8.0
	M4.5			4.5	11.1
	M6.5			6.5	16.8
	M8.5			8.5	22.1
CLS40-200	M4.5	4	25	4.5	11.1
	M6.5			6.5	16.8
	M8.5			8.5	22.1
	M13.0			13.0
CLS40-250	M8.5	4	25	8.5	22.1
CLS50-160	M6.5	6	50	6.5	16.8
	M8.5			8.5	22.1
	M13.0			13.0
CLS50-200	M6.5	6	50	6.5	16.8
	M8.5			8.5	22.1
	M13.0			13.0

CLMA / Multistage Series-The CLMA series is a horizontal multi-stage structure, which is suitable for a low capacity and a high head, with a low NPSH. The pump adopts high-pressure internal circulation mode, which is used for delivering vaporization medium.

Working Scope:
Capacity:0.5~40m³/h
Head:10~200m
Operating temp.:-100~+40ºC
Applicable Medim: ammonia(R717), Freon(R22/R12), silicon oil, CO2, etc.
Material/Pressure/Flanges       
Casing: QT                                                                                      
Impeller:HT250                                                 
Bearings: 2Cr13/FH82A
Shaft: 2Cr13                                                    
Rated Pressure: PN25                                                
Flange STD:GB/T9113.3 PN25

Pump Type	Motor Type	Qmin     (m³/h)	Qmax     (m³/h)	Power(KW)	Rated Current (A) at 380V
CLMA2	M3.0	1.0	10.5	3.0	8.0
CLMA3	M3.0	1.0	10.5	3.0	8.0
	M4.5			4.5	16.8
CLMA4	M3.0	1.0	10.5	3.0	11.1
	M4.5			4.5	16.8
CLMA5	M3.0	1.0	10.5	3.0	8.0
	M4.5			4.5	11.1
	M6.5			6.5	16.8
CLMA6	M3.0	1.0	10.5	3.0	8.0
	M4.5			4.5	11.1
	M6.5			6.5	16.8

 

Product Display

Canned Motor Pumps

Our Workshop

CHT TECK has been engaged in leak-free pumps, the main products are canned motor pumps, magnetic pumps, etc. The pumps are mainly used in petroleum, chemical, refrigeration and other fields. Our company can provide canned motor pumps that meet international standards such as VDMA24279/ISO15783/API685, which are suitable for the transportation of harsh media such as high temperature, high pressure, low temperature, flammable, explosive, toxic, and gasification.

The pumps use the top European hydraulic model, electromagnetic design, heat balance, axial force balance system and secondary pressure-bearing shell, which has the characteristics of high efficiency, energy saving, safety and stability, low noise and low vibration.

CHT TECK has professional customized processing, assembly, measurement, and testing equipment to ensure product accuracy and design realization.

CHT TECK has in-depth cooperation with many global well-known companies and products sell well all over the world. We are your ideal and reliable partner!

Packaging & Shipping

Packing: Each pump will be packed into one single wooden case. 
Shipping: Multiple shipping methods available, sea shipping, air  shipping, railway transportation, etc. 

Application

CHT Refrigeration Pump is used in the refrigeration industry for delivering refrigerants such as liquid ammonia(R717), Freon(R22/R12), silicon oil, CO2, etc

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FAQ

Q: What's the lead time for pumps? 
A: Usually 2-3 weeks after the deposit, depending on order quantity

Q: What's the payment term? 
A: Usually T/T with 30% as deposit and 70% before delivery. 

Q: What kind of shipping methods available? 
A: Sea, Air, Railway transportaion are all available.