206 Series Male × Female crossover union, 2,000 psi sour-service (NACE MR0175) rated. WECO / FMC interchange. For H₂S sour-well water and brine handling.
The Crossover Union, 206 Series M×F, 2,000 psi, Sour Service is a crossover union (Male × Female) rated for 2,000 psi working pressure in sour (nace mr0175) service. NACE MR0175 / ISO 15156 sour-service compliant — H₂S-rated body and trim with hardness controlled per the standard.
This product family covers the following stock or short-lead nominal sizes: 3 in, 4 in. Other sizes within the same series and pressure class can be sourced from the OEM mill on a build-to-order basis (8–14 weeks lead). Indus quotes a firm size, pressure class, configuration, and service-class match against your inquiry data sheet — call or RFQ with the line specification and we will return a complete matched bill of materials.
Working pressure 2,000 psi (2K class), sour (nace mr0175) rated. Manufactured to NACE MR0175, material class EE. Hydrostatic test at 1.5× shell pressure on every unit. Mill test reports per EN 10204 3.1 / 3.2 supplied with each shipment.
This product is supplied as a recognised matched-pressure interchange for the following OEM standards and product lines (no implied authorised-distributor relationship — supplied by Indus Hydraulics):
Confirm on your RFQ: (a) exact nominal size and bore ID, (b) line working pressure and pressure class, (c) end-connection style and gender on each port (M / F, NPT / BW / Integral / RTJ / RF), (d) service class — sour (NACE MR0175) or standard, (e) any additional ports or taps (1/2 in NPT instrument tap, 9/16 in Autoclave, etc.), and (f) required certifications beyond the standard MTR + hydrostatic. Indus quotes ex-Dubai with full traceability.
Pair with matched-pressure hammer unions, swivel joints (Chiksan-style 50 / 100 / 200 series), pup joints, integral crosses / tees / elbows, plug valves, ball valves, and check valves of the same WECO figure class. For wellhead and frac-tree integration, also specify API 6A flanges, wellhead adapters, and ring-joint gaskets in the matched pressure class.
| Parameter | Value |
|---|---|
| Flow Iron Type | Crossover Union |
| Figure / Pressure Series | 206 |
| Configuration | Male × Female |
| Parameter | Value |
|---|---|
| Working Pressure | 2000 psi |
| Pressure Class | 2K |
| Service Class | Sour (NACE MR0175) |
| Temperature Rating | -20°F to 180°F (-29°C to 82°C) |
| Parameter | Value |
|---|---|
| End Connection (A) | 206 Male Weco Union |
| End Connection (B) | 206 Female Weco Union |
| Available Sizes | 3 in, 4 in |
| Bore / ID | Same as nominal — full bore |
| Parameter | Value |
|---|---|
| Material | Forged alloy steel (4130) — NACE MR0175 hardness controlled |
| Parameter | Value |
|---|---|
| API / Industry Specification | NACE MR0175 |
| Material Class (API 6A) | EE |