MANUAL DAMPER

October 28, 2017October 28, 2017 nghia

Ma series Butterfly Damper

WT series

		It’s designed for a wide range of temperature. Valve body and disk made by precision processing ensure reduced leakage from valve seat.

		Connection		J5K flanged, Wafer type
		Material		Stainless
		Valve DN		40 to 400A
		Maximum Pressure in kPa(mmAq)		20(2000)
		Fluids		Gas

Production Data

Body

SCS13A

Disk

SUS420J2/SUS420J1(Seat:None)
SUS410S(SUS316+seal-ring)

Seat

0:– S:SUS316+ seal-ring

Stem Seal

Expansion graphite

Valve DN	H	W		L	Cv
40A	146	115		40	85
50A	151	115		40	145
65A	163	115		40	290
80A	185	115		50	450
100A	196	115		50	780
125A	214	115		50	1200
150A	238	145		50	1800
200A	261	145		50	3200
250A	283	145		50	5100
300A	317	220		55	7200
350A	374	320		70	8900
400A	397	320		70	11000

Pressure / Temperature Rating

WT TEMP

Outside Drawing MAWT GAIKEI

MAWT GAIKEI

Inherent flow characteristic

WT FLOW

Leakage
Standard type:less than 1%
(40/50A:less than 2%)

With seal-ring type :less than 0.1%
(40A:less than 1% ,50A:less than 0.5%
65A:less than 0.2%)

Product Code
MA-WTL-2TG–

Valve DN

ex. 80A -> 080

Seat material

0:None S:SUS316 with seal ring.