Alfa Laval LKC-2 Spring Check Valve

Central States Industrial (CSI) offers the LKC-2 disc-style spring check valve from Alfa Laval. The LKC-2 valve is designed for use in stainless steel pipe installations to ensure process integrity by preventing the reverse flow of fluids. This protects your process equipment that could be affected by reverse flow and prevents pressure surges and system shutdown. Styles are available for vertical or horizontal mounting.

LKC-2 is available in the following sizes: 1, 1½, 2, 2½, 3, and 4 inches.

WORKING PRINCIPLE

The LKC-2 opens when the pressure below the valve plug exceeds the combination of product and spring pressure above the plug. The valve closes when the combination of product and spring pressure above the valve plug exceeds the pressure below the plug.

STANDARD DESIGN

The valve body is in two parts, assembled by means of a sanitary clamp and sealed with a special seal ring. A guide disc and four legs guide the spring loaded valve plug with an o-ring seal. LKC-2 has welding ends or Tri-Clamp® connections.

When horizontal installation is necessary, choose the horizontal model to ensure proper drainability.

MATERIALS
Steel Parts304, 316L
Seal RingsEPDM rubber (standard)
Fluorinated rubber (optional)
Finish≤32 Ra
Electropolished spring
TECHNICAL DATA
Product Pressure (max)145 psi
Temperature (max)284°F (EPDM)
Temperature (min)14°F
ConnectionsTri-Clamp, Weld

Required differential pressure for opening the valve when fitted in a vertical pipe is approximately 0.87 psi.

Technical Data

Vertical Dimensions
OD

(in)

A

(in)

A Tri-Clamp

(in)

ID

(in)

t

(in)

H

(in)

Weight

(lb)

12.464.120.890.063.231.1
2.954.611.40.063.751.5
23.445.101.910.064.292.2
3.745.402.380.075.393.8
34.536.192.830.095.835.3
46.107.763.840.096.469.5
Horizontal Dimensions
OD

(in)

A

(in)

A Tri-Clamp

(in)

C

(in)

ID

(in)

t

(in)

H

(in)

Weight

(lb)

13.765.380.340.890.063.231.1
3.415.130.41.40.063.751.5
24.175.80.411.910.064.292.2
4.816.30.532.380.075.393.8
35.697.310.652.830.095.835.3
Pressure Drop/Capacity
LKC-2-Pressure-drop-capacity-diagram
LKC-2 UltraPure

The LKC-2 is also available in the UltraPure execution, which is designed and documented to meet high purity demands often required in biopharmaceutical and personal care industries. The LKC-2 UltraPure is available with surface finish, elastomer, and end connection options to meet additional requirements, such as ASME-BPE and USP Class VI. UltraPure equipment is available with Alfa Laval's Q-Doc documentation package.

Spare Parts

LKC-2 Polished Non-Return Spare Parts

316 Valve

Part11.522.534
Welding Liner961222010796122201089612220109961222011096122201119612220112
Valve Cone96122207079612220708961222070996122207109612220711

9612220712

Guide Plate961222080796122208089612220809961222081096122208119612220812
Heavy Duty Clamp (1-3")96120112029612011203961201120496120112058818027N/A
Clamp RingN/AN/AN/AN/AN/A9611311057
Seal Ring, EPDM961125315096112531519611253152961125315396112531549611253156
Seal Ring, NBR961125381096112538119611253812961125381396112538149611253816
Seal Ring, FPM961125382096112538219611253822961125382396112538249611253826
O-Ring, EPDM961199006396119900159611990064961199006596119900669611990067
O-Ring, NBR961199141096119914119611991412961199141396119914149611991415
O-Ring, FPM961199141796119914189611991419961199142096119914219611991422
Spring961199177896119917799611991780961199178196119917829611991783


304 Valve

Part11.522.534
Welding Liner961222010196122201029612220103961222010496122201059612220106
Valve Cone961222070796122207089612220709961222071096122207119612220712
Guide Plate961222080796122208089612220809961222081096122208119612220812
Heavy Duty Clamp (1-3")96120112029612011203961201120496120112058818027N/A
Clamp Ring (4")N/AN/AN/AN/AN/A9611311057
Seal Ring, EPDM961125315096112531519611253152961125315396112531549611253156
Seal Ring, NBR9611253810961125380119611253812961125381396112538149611253816
Seal Ring, FPM961125382096112538219611253822961125382396112538249611253826
O-Ring, EPDM9611990063961199001596110064961199006596119900669611990067
O-Ring, NBR961199141096119914119611991412961199141396119914149611991415
O-Ring, FPM961199141796119914189611991419961199142096119914219611991422
Spring961199177896119917799611991780961199178196119917829611991783

LKC-2 Parts List

LKC-2 Polished Non-Return Service Kits
Type11.522.534
EPDM961192400596119240069611924007961192400896119240099611924010
NBR961192401196119240129611924013961192401496119240159611924016
FPM961192401796119240189611924019961192402096119240219611924022

LKC-2 Parts List

Create a MyCSI Dashboard to save resources for quick reference, track orders, and talk with experts.