Page 391 - 2019 RYCO Product Technical Manual V1-8
P. 391

     DASH SIZE NUMBERING RULES
The DASH SIZE numbering rules for HOSE and HOSE COUPLINGS are shown on pages 30 to 33, and are quite straightforward. With a little familiarity, you will find that you can specify Part Numbers without reference to the Product Technical Manual.
The DASH SIZE numbering rules for ADAPTORS are a little more complex, and are shown on this page, and the next page, for those who would like to understand the logic applied to determine the sequence ADAPTOR ends are listed.
Adaptors Dash Size numbering rules are very similar to the Three Rules on page 388. The main criteria is the NUMBER OF ENDS the Adaptor has, with other factors being GENDER (Male or Female) and MIXTURE of Thread or Connector type. Note also that BSPT, BSPP, and BSPP O RING are treated as “different” thread types.
1.ADAPTORS WITH ONE END. (Plugs and Caps, Lock Nuts, Bonded Seals etc.) RULE IS: Adaptor Group Designator followed by Dash Size
EXAMPLE: 1/2” BSPT MALE PLUG
Group Designator for BSPT Male Plug is S64 (from Pictorial Index page 391). Dash Size for 1/2” BSP is -08 (see page 399).
Part Number is S64-08.
2.ADAPTORS WITH TWO ENDS. (Straights, Elbows, Tube Bends) (A) SAME THREAD OR CONNECTOR TYPE. SAME GENDER RULE IS: Larger Dash Size first, followed by smaller Dash Size. (Except if a Bulkhead fitting, Bulkhead End first).
EXAMPLE 1: 1/2” NPT MALE TO 3/4” NPT MALE NIPPLE Group Designator is S27N.
                                     Example 2:
Dash Size for 1/2” NPT is -08. Dash Size for 3/4” NPT is -12.
Part Number is S27N-1208.
1.1/16” JIC MALE BULKHEAD TO 7/8” JIC MALE NIPPLE
Group Designator is S10.
Dash Size for 1.1/16” JIC is -17. Dash Size for 7/8” JIC is -14. Part Number is S10-1714.
                     (B) SAME THREAD OR CONNECTOR TYPE. DIFFERENT GENDER RULE IS: Dash Size of Male End first, then Dash Size of Female End.
EXAMPLE: 3/8” BSPT FEMALE TO 1/4” BSPT MALE 45° ELBOW Group Designator is S39.
Dash Size for 3/8” BSP is -06. Dash Size for 1/4” BSP is -04.
Part Number is S39-0406. (C) TUBE WELD & NUT AND SLEEVE
    Thread x Tube Weld Flange x Tube Weld Nut and Sleeve
RULE IS: Thread Dash Size First, then Tube Dash Size. RULE IS: Flange Dash Size First, then Tube Dash Size. RULE IS: Thread Dash Size First, then Tube Dash Size.
         EXAMPLE 1: 1/2” BSPT MALE TO 3/4” TUBE OD TUBE WELD Group Designator is S53.
Dash Size for 1/2” BSP is -08. Dash Size for 3/4” OD Tube is -12.
Part Number is S53-0812.
EXAMPLE 2: JIC NUT AND SLEEVE FOR 3/8” TUBE OD Group Designator is S6.
Dash Size for 3/8” OD Tube is -06. JIC Thread Size for 3/8” Tube is 9/16” JIC (-09)
Part Number is S6-0906.
                                        CONNECTING PARTNERSHIPS 389
TECHNICAL ADAPTORS COUPLINGS ADAPTORS INTRODUCTION





































































   389   390   391   392   393