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Inflatable Packers – BCH

MODULAR DESIGN
SIMPLE OR DOUBLE PACKER
FROM 28 MM TO 170 MM

Tough, versatile, adapted to a wide range of hole diameters, the packers are ideal for water sampling projects, permeability tests, and grout injection localized in a precise zone of a borehole.

 

Description

The BCH series of inflatable packers consist of an inflatable membrane, fitted with swaged steel collars, mounted on a stainless steel center tube. They can be inflated with a variety of fluids such as water, air, nitrogen, etc., to provide a tight seal in holes or casings. The membrane flexibility and the range of pressures ensure a tight fit against irregular rugged walls. The same size packer will fit a wide range of hole diameters. Single units can be converted to double packers.

The membrane element consists of a rubber reinforced with exten
sible steel fabric, and covered with an additional layer of abrasion-resistant rubber. Threaded swaged collars terminate both ends of the gland. The collars are used to thread the gland onto packer heads which are mounted on the center tube. One of the heads is fixed and contains the inflation port. The other head is free to move, allowing the highly reinforced gland to retract about the center tube as it inflates. An NPT pipe thread terminates the top end of the center tube. An assembly is available for use with wireline equipment.

 

Specifications

TYPES AND DIMENSIONS 

 MODEL

Nominal Dia. (mm)

Center tube ID (mm)

Center tube connection 

Expansion Max. Dia (mm)

BCH28

 28

8

3/8″ NPT

50

BCH30

30

8

3/8″ NPT

50

BCH42

42

17

1/2″ NPT

98

BCH56

56

20

3/4″ NPT

125

BCH72

72

35

11/4″ NPT

160

BCH85

85 

35

11/4″ NPT

185

BCH102

102

50

2″ NPT

200

BCH130

130

80

3″ NPT

270

BCH170

170

80

3″ NPT

330

 

Rubber membrane length: 500 mm and 1000 mm for all diameters from 28 to 170 mm. 300 mm available for 28, 30 and 42mm.

 

Ordering Info

Please specify:

  • Model
  • Rubber membrane length
  • Single or double configuration
  • Double packer test zone length
  • Application (permeability, grout injection, wireline, other)
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