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Type21 Mechanical Seals Replace to Jo hn Crane Pool Pump Seal Mechanical Seal Type 21 Shaft Size Inch

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Type21 Mechanical Seals Replace to Jo hn Crane Pool Pump Seal Mechanical Seal Type 21 Shaft Size Inch

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Brand Name : YUE MI

Model Number : T21

Certification : ISO SGS

Place of Origin : Guangzhou, China

MOQ : 30/PCS

Price : consult

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 500/Set/Month

Delivery Time : 5-8 word days

Packaging Details : Details Carton

Stainless Steel Material : SS304.SS316

Seals Type : Pool Pump Seal

Export Area : All Over The World

Installation : Easy to Install

Keywords : mechanical seal

Tungsten Carbide Seal : Water Pump Seal

Customization : Accept

Balance : Unbalanced

Function : JOHN CRANE Pump

Traemark : YUE MI

Features : High Temperature Resistance, Corrosion Resistance, Wear Resistance

Type : Single Spring

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YUEMI pump mechanical seal

Alternative to: John crane type 21 seal/AES P04/ P04T seal/ Flowserve ( Pac-Seal) 110 seal/ Roten 21A seal/ SEALOL 43 CU Short/ / STERLING 212A /VULCAN 11 seal

The Type 21 is ideal for use in centrifugal, rotary and turbine pumps, compressors, chillers and other rotary shaft equipment. It is also commonly used by the wastewater and water systems industries for applications such as waste treatment, potable water and HVAC.

Operating Limits:
Pressure: ≤10 Bar
Temperature: -20ºC~180ºC
Speed: ≤ 12 m/s
Material:
Face: Carbon,SiC, SSiC, TC
Seat: SiC, SSiC, TC
Secondary Sealing: FKM/NBR/EPDM
Metal: 304SS,316SS

Features

  • The drive band's "dent and groove" design eliminates overstressing of the elastomer bellows to prevent bellows slip and protect the shaft and sleeve from wear.
  • Non-clogging, single-coil spring provides greater dependability than multiple spring designs and will not foul due to fluid contact.
  • Flexible elastomer bellows automatically compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances.

Parameters

TEMPERATURE LIMITS

-40°F to 400°F/-40°C to 205°C (depending on materials used)

PRESSURE LIMITS

150 psi(g)/10 bar(g)

SPEED LIMITS

Up to 2500fpm/13m/s, depending on configuration and shaft size

Recommended Applications

  • Process pumps
  • Other rotating equipment

Type21 Mechanical Seals Replace to Jo hn Crane Pool Pump Seal Mechanical Seal Type 21 Shaft Size Inch

SIZE/INCH d D3 D31 D6 D7 L3 L4
0.500 12.7 24.0 22.8 19.05 25.40 20.62 7.95
0.625 15.8 26.7 26.7 23.80 31.75 22.23 10.31
0.750 19.0 31.2 30.4 26.97 34.93 22.23 10.31
0.875 22.2 33.6 33.4 30.15 38.10 23.80 10.31
1.000 25.4 43.2 39.3 33.32 41.28 25.40 11.10
1.125 28.5 46.5 42.0 36.50 44.45 26.97 11.10
1.250 31.7 49.5 45.8 39.70 47.63 26.97 11.10
1.375 34.9 52.7 49.3 42.85 50.80 28.58 11.10
1.500 38.1 56.0 52.8 46.05 53.98 28.58 11.10
1.625 41.2 62.2 55.5 50.80 60.33 34.93 12.70
1.750 44.4 66.0 61.0 53.97 63.50 34.93 12.70
1.875 47.6 66.0 64.0 57.15 66.68 38.10 12.70
2.000 50.8 73.0 66.0 60.33 69.85 38.10 12.70
2.125 53.9 73.5 71.5 60.33 76.20 42.85 14.27
2.250 57.1 79.6 79.6 61.90 79.38 42.85 14.27
2.375 60.3 82.0 79.6 65.10 82.55 46.05 14.27
2.500 63.5 85.0 81.5 68.25 85.73 46.05 14.27
2.625 66.6 88.5 84.6 71.42 85.73 49.20 15.88
2.750 69.8 92.7 90.0 74.60 88.90 49.20 15.88
3.000 76.2 102.0 96.8 80.95 98.43 52.37 15.88

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