An off the shelf seal in (2) formats: Unbalanced or Balanced (higher pressures).

NUTECH D8 / D8B ASSEMBLY SEAL

Features and Benefits

Positive set screw drive eliminates seal damage due to slippage. Shaft torque is transmitted directly through the seal to the precision lapped faces.
These seals offer a cost effective, easy-to-install in-field repair kit.
R8 (unbalanced) good up to 200 psi.
R8B (balanced) good up to 600 psi.

Operating Specifications

R8 (unbalanced)
200 psi / 400° F

R8B
600 psi / 400° F

RPM: 3600 max.

Standard Material Construction

Metal Components: 316 Stainless Steel

Secondary Seal
Viton, Buna, EPDM, Neoprene, Aflas

Face
Carbon Graphite, Silicon Carbide, Tungsten Carbide

Screen Shot 2018-11-29 at 2.02.56 PM.png

Screen Shot 2018-11-29 at 2.04.42 PM.png

Request A Mechanical Seal product Quote

Use this form to provide us the necessary information to quote your seal:

Name

First Name

Last Name

Company

Email Address

Phone

(###)

###

####

Quantity of seals to be quoted:

If you are replacing an existing seal for which you have the general information please provide it here:

Manufacturer, serial number, model number, type, size, and metal components of wetted equipment parts

Stuffing Box Data

Number of Studs:

Sizes:

Positioning:

A round gland is preferred. Can same be used in place of elliptical?

Max allowable OD for gland:

If round gland cannot be used, give max dimensions for elliptical:

Product Data

Fluid:

Shaft Speed:

Temperature (F):

Spec. Gravity:

Pressure (Discharge):

Pressure (Suction):

Pressure (Stuffing Box):

% Solids in fluid:

Does the fluid solidify or crystalize?

Provide details please:

Vapor pressure at pumping temp:

Can a clean liquid flush be used if necessary?

Name flush liquid available:

Max allowable product dilution: