Hammer Union Set, 1502 Series Field-Replaceable Lip-Seal, NPT × NPT, 15,000 psi, Standard Service

The Hammer Union Set, 1502 Series Field-Replaceable Lip-Seal, NPT × NPT, 15,000 psi, Standard Service is a complete wing-union (hammer-union) set comprising a Male sub, a Female sub, and a hand-tightened wing nut for hammer-tightened assembly. The 1502 series is the industry-standard 15K hammer union for choke / kill, cementing, fracturing, and pressure-testing service. Field-replaceable lip seal protects a secondary metal-to-metal seal, so a worn elastomer can be replaced in the field without scrapping the body. Rated for 15,000 psi working pressure in standard service. Standard service rated for clean hydrocarbon, completion fluid, water, brine, oil, and gas streams within the working-pressure envelope.

Construction

• Type: Hammer Union Set (Male sub + Female sub + wing nut)
• Series: 1502 (15K pressure class)
• End A: NPT (Male sub) with field-replaceable lip seal
• End B: NPT (Female sub) with field-replaceable lip seal
• Auxiliary: Butt-weld, integral welded, and non-pressure thread sealing ends (NPST) available on request
• Material: Forged carbon / alloy steel — ASTM A105 below 6,000 psi, AISI 4130 at 6,000 psi and above; tempered
• Temperature rating: -20°F to 250°F (-29°C to 121°C)
• Charpy-tested impact-energy reports available on request

Available sizes

Stock or short-lead nominal sizes: 2 in, 3 in, 4 in. Other sizes within the same series can be sourced build-to-order at typical 8–14 week mill lead times. Indus quotes a firm size, pressure class, end-connection style, 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.

Performance

Cold working pressure 15,000 psi (15K class), standard rated. Bodies are forged from AISI 4130 alloy steel and tempered to the working-pressure design. Hydrostatic test at 1.5× shell pressure on every unit. Mill test reports per EN 10204 3.1 / 3.2 supplied with each shipment. Charpy V-notch impact testing available where service requires low-temperature toughness verification.

Applications

• 15K choke and kill manifolds
• Frac-pumping iron and fracturing-tree manifolds
• High-pressure cementing surface lines
• Pressure-testing service iron

OEM equivalents and compatibility

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):

• FMC WECO Figure 1502
• Anson 1502
• SPM 1502
• Forum Energy 1502

Compliance

• AISI 4130 alloy steel forging (per industry frac-iron material lineage)
• Recognised oilfield wing-union design lineage — pressure-class methodology and hydrostatic testing aligned with API 6A practice
• EN 10204 3.1 / 3.2 mill test reports
• Hydrostatic test certificates per unit (1.5× shell pressure)
• Charpy V-notch impact testing on request
• Full traceability — heat number stamped on body

How to order

Confirm on your RFQ: (a) exact nominal size and bore ID, (b) line working pressure and pressure class, (c) end-connection style on each port (NPT thread, butt-weld, integral / non-pressure thread sealing end), (d) service class — sour (NACE MR0175) or standard, (e) any auxiliary requirement (charpy testing report, low-temperature certification), and (f) destination port for door-to-door logistics. Indus quotes ex-Dubai with full traceability.

Companion products

Pair with matched-pressure crossover unions, integral crosses / tees / elbows, swivel joints, pup joints, and adapter flanges of the same WECO figure class. For the higher-pressure frac series (1502 / 2202), also specify API 6A flanges, ring-joint gaskets, and BSL stud-and-nut sets in the matched pressure class. Hammer-union gaskets (Buna-N, Viton, HSN, FFKM) are sold separately — confirm fluid chemistry to match elastomer.