COMPANY PROFILE

PRODUCTS

REPS & AGENTS

NEWS LETTER

SPECIAL ACCESS

CONTACT US
Custom Fabricated & Heavy Duty Dampers Design Options
 

Design Options

SEATS

STUFFING BOXES

Swing-Thru 
3%-5% Leakage
 or as required

Slant Angle
 (No seat) 
Higher CV

Step Seat for 1% Leakage
or Machined for
ANSI/FCI 70-2 Class III Shutoff

Standard

No.

Qty.

Description

Material

A

1

STUFFING BOX

CS

B

1

GLAND FOLLOWER

CS

C

2

STUD

GRB7

D

2

SPRING

COMM

E

6

NUT

GR2H

F

2

FLAT WASHER

GR5

G

1

PACKING

COMM

H

4

BRANDED PACKING

COMM

Tadpole Seat
for ANSI/FCI 70-2 Class II
or Class III
 Shutoff

Inflatable Seal
 Ensures
 Gas-Tight Operation
 for Maximum 500°F

Rubber Lined Body and
Polished Disc Edge for
Tight Shutoff up to 450°F.

Special Machined Disc and
Seat Profile for Tighter Shutoff

 

Step Seat Refractory Lined

 

 

Air Purge or Grease Fitting

No.

Qty.

Description

Material

A

1

STUFFING BOX

CS

B

1

GLAND FOLLOWER

CS

C

2

STUD

GRB7

D

2

SPRING

COMM

E

6

NUT

GR2H

F

2

FLAT WASHER

GR5

G

2

DIE FORMED PACKING

COMM

H

2

BRANDED PACKING

COMM

I

1

LANTERN RING

304SST

J

1

NPT AIR PURGE OR GREASE INLENT

COMM

BODY CONFIGURATIONS:
Round, Rectangular, Square or Obround

DISC TYPES:
Single Disc, Split Disc, Eccentric or Double Block and Bleed

SIZES:
2 inches to 144 inches or larger

Materials of Construction:

HIS can manufacture out of any weldable, castable or forgeable alloy.
We have extensive experience in high temperature, erosive or corrosive gas flow.


Alloy

Recommended Use Temperature (° F)

A387, GR11, GR 22

800 - 1100

Corten A, A516 GR70

800 - 1100

304, 304H, 304L, 321, 347

800 - 1400

316, 316L, 309

800 - 1600

INCONELS

1000 - 1800

330,333,310,HR160

1600 - 2000

A297 GRHK, HR160

1600 - 2100

SUPERTHERM CERAMICS

1800 - 2300

CERAMICS, REFRACTORY

1800 - 3000

 

For Less than 5 Psi Service

NO.

QTY.

Description

Material

A

1

STUFFING BOX

CS

B

1

GLAND FOLLOWER

CS

C

1

INBOARD BEARING

CARBON

D

5

BRANDED PACKING

COMM