Ashcroft 200 Specifications

Type 200 Series Welded or Bonded
Diaphragm Seal

Welded

or Bonded

Capsule

왘

TYPE 200 SHOWN

When isolation of the process from an

nstrument is required, Ashcroft offers a

i
comprehensive line of diaphragm seals.
Seal types include threaded, flanged,
in-line threaded, in-line flanged, in-line
socket weld, in-line butt weld, saddle
and sanitary seals. Also available is a
complete offering of isolation or iso-rings
and isolation or iso-spools.

APPLICATIONS

• Elevated process temperatures

• Corrosive service

• Isolation of the process for safety

• Suspended solids in the process

• Sanitary connections

• Replacement of process dead leg

• Ease of cleaning between batches

FEATURES

• A metal diaphragm is welded to the top
housing. Elastomeric diaphragms are
bonded to the top housing. Either provides
a double positive seal.

• A fill/bleed connection is standard, which
permits filling the seal and instrument
simultaneously after evacuation and allows
the fill to flow into the completed unit.

• A thin Teflon PTFE gasket between the
diaphragm and bottom housing ensures
a leak-tight corrosion resistant seal even
at high pressure.

• Top housing and pressure instrument are
removable.

• Continuous-duty design will prevent loss
of process fluid if pressure instrument is
removed or fails.

SPECIFICATIONS

Model Number: Type 200, 201, 202, 203, 204,

205, 206, 207, 208

Process
Connection
Size: See Table A
Instrument
Connection
Size: 1⁄

Diaphragm
Material: See Table B

Bottom Housing
Materials: See Table C

Filling Fluid: See Table E

OPTIONS Code

316 stainless steel YT
top housing

Stainless steel clamp SE
rings and flanged ring
– includes 300 stainless
steel clamping bolts
(1500 psi max)

300 series stainless SB
steel clamping bolts
(max pres is 1500 psi)

Pipe plugs for flushing PU
connections – pipe
plugs are available
in the same materials
as bottom housings
per Table C

5000 psi pressure rating HP
Threaded inlet and metal
diaphragm only

Welded instrument to DU
diaphragm seal

Dual flushing connections DB
(1⁄2 NPT) (Limited to 2˝
thru 3˝ flanged seals

Ring joint (Flanged seal only) RJ

Flat face (Flanged seal only) FF

Clean for gaseous oxygen 6B
or strong oxidizing agent
applications.

1

4,

⁄

2

NPT

BULLETIN DS-200

HOW TO ORDER:

1. From Table A...select TYPE NUMBER based on process connection, process connection size and diaphragm

2. From Table B...select DIAPHRAGM MATERIAL. (e.g., 316L stainless steel–code S)

3. From Table C...select BOTTOM HOUSING MATERIAL. (e.g., 316 stainless steel–code S)

4. From Table D...select INSTRUMENT CONNECTION size. (e.g., 1⁄4 NPT–code 02T)

5. From Table E...select FILLING FLUID, if diaphragm seal will be attached to instrument. (e.g., Glycerin–code CG)

All specifica tions are subject to change without notice.
All sales subject to standard ter ms and conditions.
© Ashcroft Inc. 2017 Rev. 05/17

type/construction. (e.g., Threaded/1˝/capsule–code-10-200)

Tylpical Code: 10–200SS–02T–CG

Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: [phone] • Fax: [phone]
email: [e-mail] • www.ashcroft.com

Type 200 Series Welded or Bonded
Diaphragm Seal

TYPE 200 SERIES WELDED
OR BONDED SEAL TYPES

Type 200 –Threaded

1

⁄4, 1⁄2, 3⁄4, 1 NPT

Type 201 –Threaded

with flushing connection

1

⁄4, 1⁄2, 3⁄4, 1 NPT

Type 202 – Raised Face Flanged

1

⁄2,˝ 3⁄4,˝ 1,˝ 11⁄2,˝ 2,˝ 3˝

Type 203 – Raised Face Flanged

with flushing connection

1

⁄2,˝ 3⁄4,˝ 1,˝ 11⁄2,˝ 2,˝ 3˝
(raised face only)
1 piece with flushing conection

Type 204 – In-line Threaded

1

⁄4, 1⁄2, 3⁄4, 1 NPT

Type 205 – Saddle

3,˝ 4˝ pipe only

Type 206 – In-line Flanged

1

⁄2,˝ 3⁄4,˝ 1,˝ 11⁄2,˝ 2,˝ 3,˝ 4,˝ 6,˝ 8˝

able A – Process Connection/Type Number

T

Process Connection Size/Code—Inches Type Number
Size 1⁄
Process Connection Code 25 50 75 10 15 20 30 40 60 80 Capsule

Threaded–female NPT • • • • • 200
Threaded–female NPT (with flushing conn.) • • • • • 201

1)

(

Flanged

• • • • • • 202
Flanged (with flushing conn.) • • • • • • 203
In-line—threaded NPT • • • • 204
Saddle • AND LARGER 205
In-line—butt weld • • • • • • 208
In-line—flanged
In-line—socket weld • • • • • • 207

Pressure Ratings—All 2500 psi except flanged seals are per ASME B 16.5, temperature limit determined by

iaphragm, bottom housing and/or filling fluid.

d

Table B – Diaphragm Material

2)

(

• • • • • • • • • 206

Table C – Housing Materials

Material Code

316L stainless steel S
304 stainless steel C
Monel 400 P

ickel N

N

arpenter 20 D

C

antalum U

T
Hastelloy B G
Hastelloy C 22
Hastelloy C 276
Teflon
Viton
Kalrez
Titanium

(6)

J

6)

(

(4)

(5)

(12)

H

(14)

TI

316L stainless steel S

T
Y
K

1

4

⁄

2

3

⁄

4 1 1

1

⁄

2 2 3 4 6 8

Material Code

Steel B
304L stainless steel C

astelloy B G

H

astelloy C 22

H

astelloy C 276

H

(6)

J

(6)

H
Carpenter 20 D
Monel “400” M
Inconel “600” W
Nickel N

(7)

(15)

PVC

V
Tantalum clad SS
Halar coated Monel
Teflon flanged steel

13)(15)

(

Kynar

(8)

SU

(8)(9)

BH

(10)

T

KY

able D – Instrument Connection

T

Size – NPT Code

1⁄

4 02T

1

04T

⁄

2

Titanium TI

Table E – Filling Fluid

Filling Service Connection to Instrument Temperature Range °F Code

Glycerin Pressure Direct Only 0/400 CG

Silicone Pressure/Vacuum Direct or Flexible Line –40/500 CK, DJ

Halocarbon Pressure/Vacuum in presence Direct or Flexible Line –70/300 CF

of strong oxidizing agent

(16)

Syltherm Pressure/Vacuum Direct or Flexible Line –40/750 HA

Type 207 – In-line Socket Weld

1

⁄2,˝ 3⁄4,˝ 1,˝ 11⁄2,˝ 2˝

Type 208 – In-line Butt Weld

1

⁄4,˝ 1⁄2,˝ 3⁄4,˝ 1,˝ 11⁄2,˝ 2˝

BULLETIN DS-200

Notes:

(1) 150, 300, 600, 900, 1500 & 2500 class flanges.
(2) 1˝ 150 thru 8˝ 300 class flanges only.
(3) Metal diaphragms welded; Teflon, Kalrez & Viton diaphragms bonded.
(4) Temp limits:−40/400°F.
(5) Max. pressure: 500 psi, Temp. limits:−40/350°F.
(6) Use on applications where NACE standard MR-01-75 2003 is standard.
(7) Maximum press./temp. Threaded: 200 psi/74°F, 125 psi/125°F, 80 psi/150°F. Flanged: 75 psi/100°F.
(8) Type 202 only.
(9) Temp. Limits: –40/300°F.

(10) Only available in 1˝, 1

Consult factory for conditions beyond these limits.

1

⁄

2˝, & 2˝ 150 class, Types 202 max. press./temp. – 270 psi and 150°F.

(11) Max. pressure: 500 psi, Temp. limits:30/212°F.
(12) Maximum pressure/temp.: 200 psi and 180°F.
(13) Type 200:
(14) Includes Titanium top housing.

1

1

⁄

4 or

⁄

2 NPT only. Larger sizes offered with solvent weld joint. N/A in 201 or 203 design.

(15) Type 200 only available in 1/4 NPT or 1/2 NPT. 3/4˝ & 1˝ size avalable as solvent welded joint only.
(16) CK for 50cSt, DJ for 10 cSt

All specifica tions are subject to change without notice.
All sales subject to stadard term s and conditions.
© Ashcroft Inc. 2017 Rev. 05/17

Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: [phone] • Fax: [phone]
email: [e-mail] • www.ashcroft.com