Danfoss (Weatherhead)

Steel Pipe Coupling

Typical Application: Grease, instrumentation and most hydraulic systems.
Pressure: Refer to the pressure charts above. The maximum working pressure of an adapter is the lower working pressure of the end size. Ex: C3069x8x6, 8 = 4000 psi and 6 = 5000 psi. Maximum working pressure is 4000 psi.
Vibration: Fair resistance.
Temperature Range: –65°F to +400°F.
Material: Carbon Steel – AISI/SAE 12L14, Stainless Steel – type 316 Plating – Zinc, yellow dichromate finish ASTM B633 Type II.
Used With: Brass, bronze and iron pipe.
Advantages:
Dryseal pipe threads (NPTF) (SAE J476), zinc
plate, compact size. Broad range of sizes and styles.

Part Number
FEMALE PIPE THREAD
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FEMALE PIPE THREAD
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HEX C
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D1
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L
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C3309X2
1/8
1/8
5/8
.332
.75
C3309X4X2
1/4
1/8
3/4
.332
1.13
C3309X4
1/4
1/4
3/4
.437
1.13
C3309X6X4
3/8
1/4
7/8
.437
1.13
C3309X6
3/8
3/8
7/8
.562
1.13
C3309X8X4
1/2
1/4
1-1/8
.437
1.50
C3309X8X6
1/2
3/8
1-1/8
.562
1.50
C3309X8
1/2
1/2
1-1/8
.687
1.50
C3309X12X8
3/4
1/2
1-3/8
.687
1.53
C3309X12
3/4
3/4
1-3/8
.906
1.53
C3309X16X12
1
3/4
1-5/8
.906
1.89
C3309X16
1
1
1-5/8
1.125
1.89
C3309X20
1-1/4
1-1/4
2
1.468
1.93
C3309X24
1-1/2
1-1/2
2-3/8
1.703
1.93
C3309X32
2
2
12-7/8
2.188
1.96

Stainless Steel No. 3321X (Ref. SAE No.140138)

Assembly Instructions 1. Tighten approximately 2-1/2 turns past hand tight. 2. Welding procedure: Use electric weldrod AWS-E7018. Recommended procedure specifies using lower amperage than usual and puddling of molten metal to permit gasses created by lead in steel to work through molten lead deposit. Label Set: FS-2000 (adhesive).