Stainless Steel Products

Have Questions?

Have Questions?

Call us at 330 425-4250 Or Contact Us Here
SSP on FacebookSSP on TwitterSSP on LinkedInSSP on Google +

Unilok Tube Fittings -How to Order

Unilok tube fittings are ordered by specifying part numbers as listed in this catalog. The Unilok part numbers are easy to understand, and describe tube fittings that are completely assembled and ready to be installed. The following explains the part numbering system:

Example:
ISS   D   4   MC   2  
Instrumentation
Material Designator
(See Chart 1)
  
SSP Brand Designator
U = Unilok Instrumentation quality tube fittings
  
Tube O.D. expressed in sixteenths of an inch
(See Chart 2)
  
Type of Tube Fitting Designator (See Chart 3)
  
2nd end connection, expressed in sixteenths of an inch, is required for a reduced size tube O.D. or a differing type of end connection such as MNPT, FNPT, etc.
(See Chart 2)
  
For special application tees, a 3rd end connection is required for a reduced size tube O.D. or a differing type of end connection such is MNPT, FNPT, etc. expressed in sixteenths of an inch
(See Chart 2)

CHART 1
Instrumentation Material Designator
Material
IB
Brass
ISS
316 Stainless Steel
ICS
Carbon Steel
IM
Monel®
IN*
Nylon
IPFA*
PFA Teflon®
ITFE*
PTFE Teflon®
* Ferrules Only
 
CHART 2: Part # Size Designators
Size Designator
Tube O.D. or
MNPT, FNPT Size
1
1/16"
2
1/8"
3
3/16"
4
1/4"
5
5/16"
6
3/8"
8
1/2"
10
5/8"
12
3/4"
16
1"

Notes:

All Configurations:
Only one size indicator is necessary when all of the connections are the same type and size.

Straights and Elbows: Specify the largest tube end first followed by the smaller tube end or differing type of connection (MNPT, FNPT, etc.).

Tees and Crosses:
Tees are described by first sizing the run (1 to 2) and then the branch (3). Crosses are described by first sizing the run (1 to 2) and then the branch (3 to 4). See Figure 1.

Specials: SSP Instrumentation manufactures a wide variety of special application tube fittings. Contact your local distributor for details regarding availability of special tube fitting configurations, materials and sizes.

  

CHART 3

Type of
Fitting
Designator
Description of Unilok
Tube Fitting Types

ANA

AN Adapter
ANBU
AN Bulkhead Union

ANF

Female AN Adapter

ANU

AN Union

BFC

Bulkhead Female Connector

BMC

Bulkhead Male Connector

BR

Bulkhead Reducer/Adapter

BRU

Bulkhead Reducing Union

BU

Bulkhead Union

CP

Cap

FA

Female Adapter

FBT

Female Branch Tee

FC

Female Connector

FE

Female Elbow

FRT

Female Run Tee

MA

Male Adapter

MBT

Male Branch Tee

MC

Male Connector

MCBT

Male Connector Bored Through

MCST

Male Connector to Straight Thread Boss

ME

Male Elbow

M45E

Male 45° Elbow

MPWC

Male Pipe Weld Connector

MPWE

Male Pipe Weld Elbow

MRT

Male Run Tee

OMC

O-Ring Seal Male Pipe Connector

OSC

O-Ring Seal Straight Thread Connector

P

Plug

PC

Port Connector

R

Reducer/Adapter

RPC

Reducing Port Connector

RU

Reducing Union

TSWE

Tube Socket Weld Elbow

TSWU

Tube Socket Weld Union

U

Union

UCS

Union Cross

UE

Union Elbow

UT

Union Tee
COMPONENTS

BN

Bulkhead Nut

FF

Front Ferrule

KN

Knurled Nut

N

Nut

TI

Tube Insert