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301D – Single Seal with Quench, Drain and outboard low pressure seal

The 301D is a hydraulically balanced single cartridge mechanical seal of rotary design, with self aligning faces. The 301D™ cartridge seal incorporates an external low pressure (2bar / 30psi) seal to retain the barrier fluid and provide effective environmental control after internal seal failure.

Depending on condition, all first4seals cartridge seals can be fully refurbished.

Cross Section

Bill of Materials

POS. ITEM MATERIALS
1 SLEEVE O-RING VITON / EPR / AFLAS / KALREZ
2 SLEEVE 316L SS
3 ROTARY FACE O-RING VITON / EPR / AFLAS / KALREZ
4 ROTARY FACE 316L SS – CARBON / SiC / TC
5 SPRING ALLOY 276
6 STATIONARY FACE CERAMIC / SiC / TC
7 STATIONARY FACE O-RING VITON / EPR / AFLAS / KALREZ
8 GLAND 316L SS
9 GASKET NOVUS 30 / PTFE
10 ALIGNMENT RING 316L SS
11 EXTERNAL STATIONARY FACE CARBON
12 EXTERNAL STATIONARY FACE O-RING VITON / EPR / AFLAS / KALREZ
13 CIRCLIP STAINLESS STEEL
14 CLAMP RING 316L SS
15 CLAMP RING O-RING VITON / EPR / AFLAS / KALREZ
16 DRIVE SCREW STAINLESS STEEL

For more information and dimensions download product brochure HERE

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