John Crane Inc., is the acknowledged technology leader and the world's largest manufacturer of Mechanical Seals and associated products.
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1772/1774/1775
 
Injectable Packing
 
1772/1774/1775

 

John Crane injectable packing consists of chopped, braided packing fibers combined with a controlled blend of greases and lubricants, resulting in a superior product favored by maintenance mechanics. Its pliability makes it easy to apply. This material can be injected via a highpressure gun or can be packed by hand. John Crane injectable packing will conform to any size stuffing box.

 
Design Features
 

1775
Consists of nonstaining, noncontaminating PTFE fibers combined with mineral oils. This material is FDA compliant, and is recommended for pulp and paper, pharmaceutical, food processing, and potable water applications.

1774
Consists of expanded graphite encapsulating PTFE fibers combined with mineral oils. This material is chemically inert, and is recommended for pulp and paper stock, sea water, sewage, steam condensate, acids, and caustic applications.

1772
Consists of natural flax fibers combined with a phosphate grease additive. This material is recommended for water, brine, pulp and paper, sewage, mild acid, and caustic applications.

Applications
John Crane injectable packing can be used in a variety of applications, including pulp and paper stock pumps, municipal agitators and aerators, valve stem packing, and general industry water pumps.

Standard Sizes
John Crane injectable packing is available in boxes of 10 one-half pound sticks. An injection gun (with fittings) is also available for use in injecting the packing into the stuffing box.

 

 

 

 
Quick Specs - Refer to datasheet for full specification and limits
 
Temperature

1775, 1774: Up to 260C/500F
1772: Up to 204C/400F

 

Pressure

1775, 1772: Up to 10.3 bar/150 psi (Pump)
1774: Up to 17.2 bar/250 psi (Pump)
1775, 1772: Up to 82.6 bar/1,200 psi (Valve)
1774: Up to 207 bar/3,000 psi (Valve)

 

Speed

1775, 1772: Up to 7.6 m/s / 1,500 fpm
1774: Up to 15 m/s / 3,000 fpm

 

PH Range 2 to 12 (all styles)
 
   
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