This series of check valves was developed for use on fluidscompatible with the corrosion resistant characteristics of virginPTFE. The body of the valve is made from a combination ofductile iron and steel. The body parts do not come into contactwith the process flow. End connections are made with a PTFEreducing flange. This new series offers high physical strengthin combination with the high corrosion resistance of virgin PTFE.The simple internal design provide for high flow rates at a verylow pressure drop.

All wetted parts of CHem Flowtronics model 1850 spring loadedcheck valves are PTFE. The housing is a combination of ductileiron and steel

Size Catalog No. Description

1” CV-25-TFE TFE Lined SpringLoaded Check Valve

11/2” CV-40-TFE TFE Lined SpringLoaded Check Valve

2” CV-50-TFE TFE Lined SpringLoaded Check Valve

3” CV-80-TFE TFE Lined SpringLoaded Check Valve

4” CV-100-TFE TFE Lined SpringLoaded Check Valve

CV-25-TFE

CV-40-TFE

CV-50-TFEMax psi @ ambient – 150 psig

Max psi @ ambient – 100 psigCV-80-TFE

CV-100-TFE

Teflon LinedCheck Valves

CHEM FLOWTRONICS

Chem Flowtronics,Inc.195 Paterson Ave., Little Falls, NJ 07424Tel: 800-486-3356 • 973-785-0001 • Fax: 973-785-8051E-mail: info@chem-flowtronics.com • Web: www.chem-flowtronics.com

Features:• Low Pressure Drop • Spring Loaded Teflon® Wetted

• High Flow Rates • Long Cycle Life

4

3

9

2

5

8

1

7

6

11

10

12

BILL OF MATERIAL

9

10

7

8

5

6

3

4

1

2

ITEMNO

PTFE LINED REDUCER

FLAT WASHER

FLOW INDICATION TAG

NAMEPLATE

PTFE LINED REDUCER

DESCRIPTION

CENTER RING

SPACER ASSEMBLY

PLUG AND SEAT ASSEMBLY

BODY BOLTS

HEX NUT

PTFE LINED

ALUMINUM

ALUMINUM

CADMIUM PLTD CS

PTFE LINED

PTFE LINED

PTFE

CADMIUM PLTD CS

CADMIUM PLTD CS

PTFE

MATERIAL

5.13 [130.2]

LBS

APPROX

15

15.5

26

36

55

WEIGHT

7.50 [190.5]

6.00 [152.4]

4.75 [120.7]

3.88 [98.4]

3.13 [79.4]1/2"-13

5/8"-11

"E""D"

4

4

4

4

8

1.00 [25.4]

1.50 [28.1]

2.00 [50.8]

3.00 [76.2]

4.00 [101.6]6.75 [171.5]

5.50 [139.7]

5.25 [133.4]

5.13 [130.2]

4"

"C""B""A"

3"

2"

1 1/2"

1"

SIZE

DIMENSIONS, IN INCHES [mm]

1/2"-13

5/8"-11

5/8"-11

AT AMBIENT

100 PSIG

150 PSIG

MAX PRESS

TEMPNUMBERCATALOG

CV-100-TFE

CV-80-TEF

CV-50-TFE

CV-40-TFE

CV-25-TFE

NOTES:1- MAXIMUM TEMPERATURE: 400∞F2- ALL WETTED COMPONENTS: PTFE3- FLANGE MATERIAL: DUCTILE IRON / STEEL4- AVAILABLE WITH 316LSS FLANGES5- OPTIONAL FACE TO FACE DIMENSIONS AVAILABLE

PTFE LINED SSSPRING11

OPTIONALGROUNDING LUGS AND WIRE12

.REVISED HARDWARE SIZES 0219041

"A"

"B""C" QTY "D" UNC TAP EQ SP ON "E" BCREF "B" ANSI 150LB PATTERN

CV-XX-TFE 1 OF 1

KCA 040603 1 = 1 1

CHECK VALVE

ASSEMBLY

CHECKED BYDATENo. REVISION/DESCRIPTIONLTR

DRAWN BY CHECKED BY DATE SCALE

DWG.No.

REV LTR.

SHEET No.

CUSTOMER :

195 PATERSON AVELITTLE FALLS, NJ 07424

C FHEM LOWTRONICS

FAX: (973) 785-8051PHONE: (973) 785-0001

CHEM FLOWTRONICS

10/08REV2

Chem Flowtronics,Inc.195 Paterson Ave., Little Falls, NJ 07424Tel: 800-486-3356 • 973-785-0001 • Fax: 973-785-8051E-mail: info@chem-flowtronics.com • Web: www.chem-flowtronics.com

Options:• All Metal Parts - Stainless Steel • Grounding Lugs

• Non Standard Face To Face • PFA/FEP Lined

As shown, 1” valve with Grounding Lug

Valve Size Face to Face

1” 51/8”

11/2” 51/8”

2” 51/4”

3” 51/2”

4” 63/4”