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By certification 
FEATURES
1. QHFS type mechanical seal is applicable to the boiler feed water pump.
2. Single seal 3. Balanced seal 4. Cartridge seal
5. Multiple springs rotating
6. O- ring as auxiliary sealing
7. A pair of friction's elements are carbon graphite and SSIC
Advantages
1. Cartridge mechanical seals for standardization
2. High pressure operating conditions are agreeable.
3. Clean assembly
4. Long product lifecycle. Energy saving, environment protection
5. Installation faults are avoided, damage-free and cost-effective
6. Excellent compensation performance functioning equivalent, effective pressurization
7. Straightforward and easier specification for pre-assembled unit.
Time saving (reduced down-times)
8. Cartridge module performs great functions, showing the cutting-edge technology.
9. High flexible, OEMs are available.
10. Wide applicable to program about conversion and retrofit
Conditions and Operating range
Conditions and Operating range
1. Pressure: ≤2.5MPa
2. Temperature:≤220° C
3. Shaft diameter: d1=135mm, d0=131mm
4. Rotation speed: n≤5000r/min
5. Applicable medium: feed water
Metal parts: 316, 304, 2Cr13
Friction Elements: Silicon carbide and Graphite.
SSiC and RBSiC.
Auxiliary sealing: Rubber or PTFE
Package: Poly bag, one carton to one set
Mail box: charles.m@qhseals.com
URL: hzqhsy.en.made-in-china.com/ or www.qhseals.com
1. QHFS type mechanical seal is applicable to the boiler feed water pump.
2. Single seal 3. Balanced seal 4. Cartridge seal
5. Multiple springs rotating
6. O- ring as auxiliary sealing
7. A pair of friction's elements are carbon graphite and SSIC
Advantages
1. Cartridge mechanical seals for standardization
2. High pressure operating conditions are agreeable.
3. Clean assembly
4. Long product lifecycle. Energy saving, environment protection
5. Installation faults are avoided, damage-free and cost-effective
6. Excellent compensation performance functioning equivalent, effective pressurization
7. Straightforward and easier specification for pre-assembled unit.
Time saving (reduced down-times)
8. Cartridge module performs great functions, showing the cutting-edge technology.
9. High flexible, OEMs are available.
10. Wide applicable to program about conversion and retrofit
Conditions and Operating range
Conditions and Operating range
1. Pressure: ≤2.5MPa
2. Temperature:≤220° C
3. Shaft diameter: d1=135mm, d0=131mm
4. Rotation speed: n≤5000r/min
5. Applicable medium: feed water
Metal parts: 316, 304, 2Cr13
Friction Elements: Silicon carbide and Graphite.
SSiC and RBSiC.
Auxiliary sealing: Rubber or PTFE
Package: Poly bag, one carton to one set
Mail box: charles.m@qhseals.com
URL: hzqhsy.en.made-in-china.com/ or www.qhseals.com
