• Model NO.：4 1,2"-20"
• Size：4 1 ,2"-20"
• Sample：Available
• Color：Red,Orange,Black
• ODM：Available
• Drawing：Available
• Markings：Available
• Height：350mm
• Bows：6PCS
• Transport Package：Wood Cases
• Specification：4 1,2"-20"
• Trademark：zhongshi
• Origin：Henan, China
• HS Code：843143100
• Production Capacity：20000PCS,Month

Model
(in)Hooping In-Dia. (mm)Hooping 
Thickness
(mm)Total 
length
(mm)Max.Out-Dia
(mm)Amount of
Spring
(mm)5-1/2" x 8-1/2"142-1483-5650±50225±557" x 9-5/8"181-1863-5650±50255±567" x 8-1/2"181-1863-5650±50235±568-5/8 x 12-1/4"223-2283-5650±50330±589-5/8 x 12-1/4"250-2553-5650±50330±5810-3/4 x 12-1/4"274-2763-5650±50330±5913-3/8"x17-1/2"342-3473-5650±50450±51118-5/8"x24"475-4773-5600±50610±51220"x26"509-5113-5600±50660±512Features of Bow Spring Casing Centralizer:
a. Designed for high restoring force and low starting & running force
b. The larger bows provide complete centralization in vertical or slightly deviated wells.
c. Due to the flexibility of bows, they can pass through narrow hole sections and expand in the targeted locations.
d. Undergo special coating process to prevent from rust
e. For hinged bow spring casing centralizers, end collars are designed with self-locking action, which are easy to assemble and can be shipped in half assembled condition for less shipping and storage costs.
 
f. The double bow casing centralizer permits compression to facilitate movement through tight spots and dog legs. Compared to other spring bow centralizers, this structure attains higher stand-off because of its higher restoring force.