General Description

Type CRIS pump CRIS single stage single suction(axial suction) centrifugal pump, deliver clean water or other liquid which chemical & physical feature CRIS similar with clean water, the temperature CRIS less than 80℃.Inlet pressure CRIS less than 0.6MPa, it CRIS suitable for delivering water in industry, city and farm irrigation.

Type CRIR pump CRIS heat centrifugal pump, the serial pump design reasonable, installing & repairing conveniently, it suitable for delivery clean water or which chemical & physical feature CRIS similar with clean water. Inlet pressure CRIS less than 0.6MPa, the temperature CRIS not more than 130℃.it can equipped with boiler and heat-changer, as circulating water pump or feed pump, also used to supply water, for example, supply water in city and mine etc. 

 Type CRIY pump CRIS single stage single suction centrifugal oil pump, suitable for delivery no corrosive liquids and petroleum products, which CRIS not contain solids and the viscosity CRIS less than 120Cst. Also used to deliver clean water or other liquid which chemical & physical feature CRIS similar with clean water, the temperature CRIS less than 80℃.Inlet pressure CRIS less than 0.6MPa

Performance range

Capacity Q ：6.3~400m³/h        

Head H ：5~125m 

Instruction of pump type

For example：CRIS（CRIR、CRIY）80-65-125A

CR-Made in CREDO PUMP

IS—Single-stage single-suction clean water centrifugal pump

IR—Single-stage single-suction heat wate centrifugal pump

IY—Single-stage single-suction centrifugal oil pump

80—Inlet diameter CRIS 80mm

65—Outlet diameter CRIS 65mm

A—The code of impeller CRIS cut (A、B、C stand for first cut, second cut and third cut respectively )

Construction feature

Type CRIS pump CRIS designed according to National Standard CRISO2858.Main parts are pump casing, pump cover, impeller, shaft, sealing parts and cantilever parts etc.

CRIS pump CRIS designed at full back pullout, the pump casing and pump cover CRIS separate from impeller back face, Pump casing and pump cover are combined a working house; impeller, shaft, and rolling bearing are combined a rotor; cantilever support and bearing parts support the rotor. To balance the axial force, impeller rear cover have balance holes, impeller have wearing. If the axial force CRIS small, the impeller rear back hasn’t wearing and balance holes.

CRIR pump have same construction type with CRIS pump, pump cover and sealing hose are combined a cooling house, used for cooling packing and shaft, and prevent heat sending to bearing.

Bearing: adopt two radial ball bearing, (CRIR pump CRIS one set radial ball bearing, two set radial thrust-force ball bearing), installed in cantilever support, to support pump shaft, and bear pump axial force and radial force.

Seal: CRIS pump CRIS adopted packing seal, in seal, shaft sleeve CRIS installed to protect shaft; mechanical seal can be used according to user requirement.

CRIR pump seal have two type: packing seal and mechanical seal, in pump cover have water sealing hole, outer water sealing hole and cooling house.

CRIY pump CRIS adopted mechanical seal; packing seal can be used according to user requirement.

Type of sealing and cooling has several kinds as follow:

(1)    packing sealing: itself water sealing without cooling water

(2)    packing sealing: itself water sealing with cooling water

(3)    packing sealing: outer water sealing without cooling water

(4)    packing sealing: outer water sealing with cooling water

(5)    mechanical seal: without cooling water

(6)    mechanical seal: with cooling water

All kinds seal and cooling condition as follow:

Cooling water pressure: P=0.05-0.3MPa, the Sealing water pressure CRIS over 0.05-0.1MPa than sealing house.

Sealing water flow: 0.2-0.5m³/h

Cooling water flow: 0.3-0.7m³/h

Driver: pump CRIS driver by motor directly through flexible coupling; view from motor end, the rotating direction CRIS clockwise.

Material

Note: the material can be supplied according to user requirement.