Product

Lined Ball Check Valve

Lined ball check valves provide compact non-return performance in corrosive liquid service while minimizing maintenance demand.

Tight shut-off Low maintenance Corrosion resistant

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Product Overview

Application and service highlights

Introduction

Lined ball check valves provide compact non-return protection for corrosive process lines where installation space is limited. Their simple moving element makes them suitable for services involving intermittent flow, pulsing duty or vertical orientation depending on system design.

Key Features

Compact construction suits restricted piping locations.
Helps prevent media backflow in transfer and dosing lines.
Simple internal movement supports dependable non-return action.

Specifications

Material, dimensions and testing standards

Material

Valve Body: Robust metallic construction with corrosion resistant lining.
Seats & Seals: PTFE-based soft sealing elements for dependable shut-off.
Trim: Configured to suit process pressure and media compatibility.

Dimensions

Offered in standard line sizes for process and utility services.
Flanged drilling available to match common plant standards.
Compact face-to-face dimensions support retrofit installations.

Testing

Seat leak and shell testing before dispatch.
Lining continuity inspected with spark testing.
Operational cycling checked for smooth performance.

Technical Drawing

Cross-sectional reference

Dimensional Specifications

Dimensional table

Size		Diameter (D)	Raised Face (R/F)	P.C.D (K)	Flange Thick. (T)	No. of Holes (N)	Hole Dia (B)	Lining Thickness (±0.5mm)	Length ± 5mm (Max L)
NB	Inch
25	1"	33.7	50	79	15	4	15	3	600
40	1.5"	48.3	65	95	17	4	18	3	600
50	2"	60.3	80	127	19	4	19	3	500
80	3"	88.9	100	152	22	4	22	3	400
100	4"	114.3	125	178	24	8	22	3	300