Gold Member Since 2014
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Saisi Mechanical Seal Co., Ltd.

Mechanical Seal, Cartridge Mechanical Seal, Burgmann Lek777 manufacturer / supplier in China, offering Burmann LEK777 Replacement (mechanical seal, pump seal, cartridge seal), Mechanical Seal Burgmann Type LP-D, Mechanical Seal John Crane Type 2 and so on.

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Supplier Homepage Product Cartridge mechanical seal Burmann LEK777 Replacement (mechanical seal, pump seal, cartridge seal)

Burmann LEK777 Replacement (mechanical seal, pump seal, cartridge seal)

Purchase Qty.:
1-9 10+
FOB Unit Price: US $200 US $50
Purchase Qty. (Pieces) FOB Unit Price
1-9 US $200
10+ US $50
Get Latest Price
Production Capacity: 10000sets/Year
Transport Package: Wooden Box or Carton Box Upon The Order
Payment Terms: T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: SSLEK777
  • Trademark: Saisi Seal
  • Origin: Zhangjiagang, Jiangsu
  • Standard: Standard, Nonstandard
  • Specification: CE; RoHS
Product Description
API 682 Category 2 and 3, Type A,
Arrangement 1 seal
Single seal
Cartridge unit
Stationary multiple springs
Solid seal faces
Operating range
Pressure (product seal): p = vacuum ... 60 bar ( 870 PSI)
Temperature: -40 °C +176 °C (-40 °F +349 °F)*
Sliding velocity: vg = 50 m/s (164 ft/s)
Viscosity: ... 300 mPa·s
Solids content: ... 0.5 wt.%
* Engineered up to 260 °C (500 °F) with FFKM (K) secondary seals
Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
FKM (V), FFKM (K), EPDM (E), NBR (P)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G)
Recommended applications
Oil and gas industry
Power plant technology
Light volatile hydrocarbons
LPG plants
API 610 / ISO 13709 pumps
Process pumps
Recommended piping plans
Process side:
01, 02, 11, 12, 13, 14, 21, 22, 23, 31, 32, 41
Atmospheric side:
51, 61, 62, 65A, 65B, 66A, 66B
Suitable for higher speeds
Good followability due to no influence from
run-out, squareness or vibration of the shaft
Compact design
Low heat generation and power consumption
due to narrow seal face width
Longer seal life
Pressure-balanced design prevents mating
ring being forced out under reverse pressure
No damage to shaft sleeve as dynamic
O-Ring is not in direct contact with the sleeve

Burmann LEK777 Replacement (mechanical seal, pump seal, cartridge seal)
Burmann LEK777 Replacement (mechanical seal, pump seal, cartridge seal)
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