Piping Specialties > Steam Traps > Bestobell Steam IB18

 

Bestobell Steam IB18 Inverted Bucket Steam Traps

Bestobell Steam inverted bucket traps are designed for process heating and drip leg services. They're made of heavy duty cast iron bodies and stainless steel buckets for long-term operation and reliability. The IB series inverted bucket steam traps offer easy in-line inspection and maintenance. Just remove the top for access to trap internals.

Bestobell's unique linkage system multiplies the force exerted by the bucket for assisted opening against pressure for maximum flow capabilities. Models are available with maximum discharge capacities from 570 to 20000 PSID

Key Specifications

  • IB18H: 1/2" to 2" sizes, horizontal design with side inlet and outlet
  • IB18S: 1/2" to 1-1/4" sizes, horizontal design with side inlet and outlet, and a built-in strainer
  • IB18V: 1/2" to 2" sizes, vertical design with bottom inlet and top outlet

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Description Dimensions Catalog
Number
Size NPT Orifice Size Max Rated DP Max. Discharge
Capacity
Max. Allowable
Pressure
A B C D Catalog Number
1/2" 1/8"
3/32"
3/32"
5/32"
125 PSID
150 PSID
150 PSID
250 PSID
950 PSID
570 PSID
570 PSID
760 PSID
250 PSIG
150 PSIG
150 PSIG
250 PSIG
4.25"
5.06"
5.06"
4.25"
6.38"
5.94"
6.5"
6.38"
-
3.75"
3.75"
-
-
3.31"
3.44"
-
IB18V210-8
IB18H210-6
IB18S210-6
IB18V210-6
3/4" 1/8"
1/8"
5/32"
3/32"
3/32"
7/64"
125 PSID
125 PSID
125 PSID
250 PSID
250 PSID
250 PSID
950 PSID
950 PSID
2000 PSID
760 PSID
760 PSID
1300 PSID
250 PSIG
250 PSIG
250 PSIG
250 PSIG
250 PSIG
250 PSIG
5.06"
5.06"
5.63"
5.06"
5.06"
5.63"
7"
7.5"
8"
7"
7.5"
8"
3.75"
3.75"
-
3.75"
3.75"
-
4.38"
4.44"
-
4.38"
4.44"
-
IB18H310-8
IB18S310-8
IB18V310-10
IB18H310-6
IB18S310-6
IB18V310-7
1" 5/32"
5/32"
1/4"
7/64"
7/64"
3/16"
125 PSID
125 PSID
125 PSID
250 PSID
250 PSID
250 PSIG
2000 PSID
2000 PSID
3900 PSID
1300 PSID
1300 PSID
3500 PSID
250 PSIG
250 PSIG
250 PSIG
250 PSIG
250 PSIG
250 PSIG
7"
7"
6.88"
7"
7"
6.88"
9.09"
9.06"
10.5"
9.06"
9.09"
10.5"
5.63"
5.63"
-
5.63"
5.63"
-
5"
5.75"
-
5.75"
5"
-
IB18H410-10
IB18S410-10
IB18V410-16
IB18S410-7
IB18H410-10
IB18V410-12
1-1/4" 1/4"
1/4"
11/32"
9/32"
3/16"
3/16"
125 PSID
125 PSID
125 PSID
225 PSID
250 PSID
250 PSID
3900 PSID
3900 PSID
11000 PSID
9600 PSID
3500 PSID
3500 PSID
250 PSIG
250 PSIG
250 PSIG
250 PSIG
250 PSIG
250 PSIG
8.13"
8.13"
9.06"
9.06"
8.13"
8.13"
12.25"
12.31"
14.38"
14.38"
12.25"
12.31"
7"
7"
-
-
7"
7"
7.25"
7.38"
-
-
7.25"
7.38"
IB18H510-16
IB18S510-16
IB18V510-22
IB18V510-18
IB18H510-12
IB18S510-12
1-1/2" 11/32"
11/32"
9/32"
9/32"
125 PSID
125 PSID
225 PSID
225 PSID
11000 PSID
11000 PSID
9600 PSID
9600 PSID
250 PSIG
250 PSIG
250 PSIG
250 PSIG
10.19"
9.06"
10.19"
9.06"
16.06"
14.38"
16.06"
14.38"
9.06"
-
9.06"
-
7.88"
-
7.88"
-
IB18H610-22
IB18V610-22
IB18H610-18
IB18V610-18
2" 11/32"
1/2"
9/32"
3/8"
125 PSID
125 PSID
225 PSID
225 PSID
11000 PSID
20000 PSID
9600 PSID
18250 PSID
250 PSIG
250 PSIG
250 PSIG
250 PSIG
10.19"
10.25"
10.19"
10.25"
16.06"
16.69"
16.06"
16.69"
9.06"
-
9.06"
-
7.88"
-
7.88"
-
IB18H710-22
IB18V710-32
IB18H710-18
IB18V710-24
2-1/2" 1/2"
3/8"
125 PSID
250 PSID
20000 PSID
19000 PSID
250 PSIG
250 PSIG
13"
13"
20.69"
20.69"
11.25"
11.25"
11"
11"
IB18H810-32
IB18H810-24

Videos

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