Mechanical seal Type 301

The type 301 is a stationary single-cartridge seal. Thanks to its extremely short design, the type 301 is also suitable for cramped stuffing boxes with a cross-section from 7.95 mm (5/16"). The precision lost-wax casting process for the glands impresses through a high surface quality and an inexpensive sales price.

The type 301 is supplied in an O-ring design.

Advantages

Glands with ¼" NPT axial flush and quench connections
Shock and vibration-dampend faces
Springs outside the medium
Independent of the direction of rotation
Extremely short design
Suitable for cramped stuffing boxes from 7.94 mm (5/16") cross-section

Technical details

Range of application*
Pressure	700 mm Hg - 28 bar
Temp.	Elastomer dependent
Sliding velocity	up to 35 m/s
Shaft movements	axial +/- 1,0 mm
	radial +/- 0,5 mm

Sizes
D_shaft	24 - 160 mm
	1“ - 6 ¼“
	Special sizes available on request
Materials
Metals	DIN 1.4571 / 316 SS
Springs	Hast. C
Faces	CA, CE, SC, SSIC, TC
O-Rings	FKM, EPDM, PTFE, FEP Umm., Chemraz, Kalrez, Aflas, etc.
Alternative
Membrane (bellows)	Hast. C, AM 350
Rolled bellows	Hast. C, Incolloy

Other sizes, materials or design variations upon request.
* Maximum temperature / pressure / speed indicates operating extremes independently and does not imply the seal will function at these extremes at the same time. Contact DEPAC if in doubt.