Allen Screw Centralizer Stop Collar, Casing Stop Ring

• Certification: ISO 9001:2000, API
• Surface Treatment: Spray-Paint
• Structure: Slider
• Material: Cast Steel
• Type: Stop Collar
• Sample: Avaliable
• Model NO.: Allen screw stop collar
• Stop Collar Type: Slip on Type
• Features: with Allen Screw
• Application: One Centralizer with One or Two Stop Collars
• Transport Package: Wooden Case
• Specification: 4 1/2′′~20′′
• Trademark: ZS
• Origin: Henan
• Production Capacity: 5000 Piece/Pieces Per Month

Product Description

Product Name: Allen screw centralizer stop collar,casing stop ring

Description of allen screw stop ring
1. Stop collar type:Hinged type and slip on type
2. Size: 4 1/2''~20'', according to the casing OD.
3. Usage: for well drilling area, combine with the centralizers, such as bow spring centralzers, rigid centralizers.

Parameters of allen screw stop ring

Specifications,mm	13 3/8″	10 3/4″	9 5/8″	8 1/8″	7 5/8″	7″	5 1/2″	5″	4 1/2″
ID,mm	338	272	245	206	193	177	139	126	114
OD,mm	350	284	257	218	285	189	151	138	126
Holding Force,KN	40	40	40	30	30	30	30	24	24

We have bow casing centralizer and rigid casing centralizer, there are the specification.

Parameter of Bow Casing Centralizers

Model (in)	Hooping In-Dia. (mm)	Hooping thickness(mm	Total length (mm)	Max.Out-Di (mm)	Amount of spring(mm)
5-1/2" x 8-1/2"	142-148	3-5	650±50	225±5	5
7" x 9-5/8"	181-186	3-5	650±50	255±5	6
7" x 8-1/2"	181-186	3-5	650±50	235±5	6
8-5/8 x 12-1/4"	223-228	3-5	650±50	330±5	8
9-5/8 x 12-1/4"	250-255	3-5	650±50	330±5	8
10-3/4 x 12-1/4"	274-276	3-5	650±50	330±5	9
13-3/8"x17-1/2"	342-347	3-5	650±50	450±5	11
18-5/8"x24"	475-477	3-5	600±50	610±5	12
20"x26"	509-511	3-5	600±50	660±5	12

Parameter of Rigid Casing Centralizers

Model	Max OD(mm)	ID(mm)	Length(mm)
4-1/2" x 6"	145	116.5	200
5" x 6"	145	129	200
5-1/2" x 8-1/2"	205-210	142	200/300
6-5/8" x 8-1/2"	205-210	171	200/300
7" x 8-1/2"	205-210	181	200/300
7" x 9-1/2"	225-235	181	200/300
7" x 9-5/8"	225-235	181	200/300
9-5/8" x 12-1/4"	300-305	248	200
13-3/8" x 17-1/2"	430-435	346	200

 
If you have inquiry for the centralizer or stop ring, please send us your enquiry!