4 1/2′′ Polymer Thermoplastic Nylon Rigid Casing Centralizer

• Certification: ISO 9001:2000, ISO 9001:2008
• Surface Treatment: Without Processing
• Centralizer Type: Rigid
• Structure: Slider
• Material: Plastic
• Type: Centralizer
• Model NO.: 4 1/2 "-20"
• Sample: Available
• Size: 4 1/2"-20"
• Color: Black
• Coatings: Available
• Markings: Available
• Drawing: Available
• Blades: 5PCS
• Length: 245mm
• Transport Package: Wood Cases
• Specification: 4 1/2"-20"
• Trademark: zhongshi
• Origin: China
• HS Code: 843143100
• Production Capacity: 10000PCS/Month

Product Description

4 1/2'' Polymer Thermoplastic Nylon Rigid Casing Centralizer

Composite Casing Centraliser is the ultimate in down-hole centralisation, offering field proven lower friction coefficients leading to superior drag and rotational torque reduction. High abrasion resistant proprietary engineered polymer ensures maximum stand-off at TD. Robust enough to meet the challenges of today's most demanding wells. 
Composite Materials: 
- Moulded during high pressure high temperature process 
- Spiral Blades 22-25° and melon shaped 
- Passive Straight Blades 5° and melon shaped 
- Patented Anti-Swage Rings incorporated in each end 
- Generous By-Pass Area provided 
- Numerous Pipe x Hole size configurations available 
- Low Weight 
- Premium Self-Aligning Stop Collars also available  






specifications for reference:
 

Model(in)	Hooping In-Dia.(mm)	Hooping  thickness  (mm)	Hooping height(mm)	Total Length(mm)	Max. Out-Dia.(mm)	Spring  Pieces
5-1/2*8-1/2	142-148	3-5	90-120	650±50	225±5	5
7*9-5/8	181-186	3-5	90-120	650±50	255±5	6
7*8-1/2	181-186	3-5	90-120	650±50	235±5	6
8-5/8*12-1/4	223-228	3-5	90-120	650±50	330±5	8
9-5/8*12-1/4	250-255	3-5	90-120	650±50	330±5	8
10-3/4*12-1/4	274-276	3-5	90-120	650±50	330±5	9
13-3/8*17-1/2	342-347	3-5	90-120	650±50	450±5	11
18-5/8*24	476±1	3-5	90-120	600±50	610±5	12
20*26	510±1	3-5	90-120	600±50	660±5	12