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{"title":"Oilfield Goods Hammer Union Seals 80 duro Nitrile Seal Rings 4"","imgUrl":"https:\/\/img.chinax.com\/nimg\/7e\/6b\/6238f77a2531ff3842ff8373a9e8-200x200-1\/oilfield_goods_hammer_union_seals_80_duro_nitrile_seal_rings_4_22.jpg","attrs":{"Brand Name":"SHQN","Model Number":"4''","Certification":"ISO9001","Place of Origin":"Shanghai, China"}}
{"title":"2 Inch HNBR Black Hammer Union Seal Rings \/ Lip Seal Gasket Oil Resistant","imgUrl":"https:\/\/img.chinax.com\/nimg\/46\/25\/02dee6c78b2637674389cb463397-200x200-1\/2_inch_hnbr_black_hammer_union_seal_rings_2f_lip_seal_gasket_oil_resistant.jpg","attrs":{"Brand Name":"SHQN","Model Number":"FIG 1502","Certification":"ISO 9001","Place of Origin":"Shanghai, China"}}
{"title":"Multiple sizes Durable Hammer Union Lip Seal Ring","imgUrl":"https:\/\/img.chinax.com\/nimg\/2b\/88\/d463f2e2b6a2652660560963e47a-200x200-1\/multiple_sizes_durable_hammer_union_lip_seal_ring.jpg","attrs":{"Brand Name":"SHQN","Model Number":"Weco Fig1502","Certification":"ISO 9001","Place of Origin":"Shanghai, China"}}
{"title":"Made in China Hammer Union Lip Seal Ring HNBR","imgUrl":"https:\/\/img.chinax.com\/nimg\/54\/71\/620fb6abb15ce3ffe142773c09bb-200x200-1\/made_in_china_hammer_union_lip_seal_ring_hnbr.jpg","attrs":{"Brand Name":"SHQN","Model Number":"Weco Fig 1502","Certification":"ISO 9001","Place of Origin":"Shanghai, China"}}
{"title":"3"BLACK HAMMER UNION LIP SEAL RING, BUNA With LOWER PRICE AND TOP QUALITY","imgUrl":"https:\/\/img.chinax.com\/nimg\/6e\/37\/f9d6ab7b6dd01c80f9cb5b4cc28b-200x200-1\/3_22black_hammer_union_lip_seal_ring_2c_buna_with_lower_price_and_top_quality.jpg","attrs":{"Brand Name":"SHQN\/Royal Way","Model Number":"HUS001","Certification":"ISO 9001","Place of Origin":"Shanghai, China"}}
H2S Resistant Hammer Union Seals | FKM with Stainless Steel Backup Ring | 15,000 PSI CWP
Overview
Engineered for Sour Service & High-Temperature Extremes
In the most volatile environments of the oilfield—where high-pressure meets H2S and extreme heat—standard NBR seals will fail. Our Premium FKM Hammer Union Seals with Stainless Steel Backup Rings are the ultimate defense for your flowline integrity.
Specifically designed for Sour Service (H2S) and high-pressure applications like Fig 1502, these seals combine the chemical inertness of high-grade Fluoroelastomer (FKM) with the rigid structural support of a Stainless Steel anti-extrusion ring. This is the professional choice for 15,000 PSI Cold Working Pressure (CWP) operations where safety and uptime are non-negotiable.
Key Features and Benefits
Engineered for Sour Service (H2S): Our specialized Fluoroelastomer (FKM) compound is chemically inert to Hydrogen Sulfide, preventing the swelling, hardening, and cracking that causes NBR seals to fail in sour environments.
Premium Stainless Steel Reinforcement: Unlike brass rings that can corrode in sulfur-rich fluids, our Stainless Steel anti-extrusion ring provides permanent structural integrity and zero-corrosion reliability.
High-Pressure Blowout Protection: The integrated backup ring bridges the clearance gap in the union, ensuring the seal maintains its shape even under 15,000 PSI pressure spikes.
Extended Thermal Stability: Maintains a positive seal in extreme temperatures ranging from -15°F to 446°F, ideal for HPHT (High Pressure High Temperature) wells.
Pressure-Energized Design: The lip profile is designed to use internal line pressure to increase the sealing force, ensuring a leak-proof connection from low-pressure startup to full-load operation.
Technical Specifications
Property
Value / Description
Material (Elastomer)
High-Grade FKM(Fluoroelastomer)
Reinforcement Ring
Corrosion-Resistant Stainless Steel (SS304/SS316)
Available Sizes
2", 3", 4" (Custom sizes available)
Applicable Figures
Compatible with Fig 602, Fig 1002, Fig 1502, Fig 2202
Standard Hardness
80 Shore A, 90 Shore A, or 95 Shore A
Color
Black, Green, Blue, or Custom Coded
Performance Parameters
Cold Working Pressure (CWP): Rated up to 15,000 PSI (for Fig 1502).
Temperature Range: -15°F to +446°F (-26°C to +230°C).
Compression Set:** Excellent resistance to permanent deformation under long-term load.
Extrusion Resistance: Maximum support at clearance gaps up to 0.030" at 15k PSI.
Common Applications
Our FKM/SS seals are the "Gold Standard" for high-stakes oilfield servicing: Sour Gas Production: Critical sealing in wells with high H2S and CO2 concentrations.
Well Stimulation & Acidizing: Handling aggressive chemicals and acids that degrade standard Nitrile seals.
High-Pressure Fracturing: The go-to seal for discharge manifolds in "Iron" fleets operating in corrosive basins.
HPHT Well Testing: Providing safety and security during initial flowback and testing of deep, high-pressure wells.
FAQ
Q1: When should I choose FKM with Stainless Steel over NBR with Brass?
A: You should upgrade to FKM/SS whenever H2S is present, or when operating temperatures exceed 212°F. Stainless steel is required for sour service because brass can suffer from sulfide stress corrosion.
Q2: Will these seals work with my existing Fig 1502 Hammer Unions?
A: Yes. Our seals are designed to meet the standard geometric profiles of Figure 1502, 1002, and 602 unions, ensuring a seamless fit with your current inventory.
Q3: What is the benefit of the Stainless Steel ring at 15,000 PSI?
A: At 15k PSI, rubber becomes almost fluid-like. The SS ring acts as a rigid wall that prevents the rubber from being pushed through the tiny gaps in the union, preventing "blowouts."
Q4: Can these seals handle high concentrations of Hydrochloric Acid (HCl)?
A: Yes, FKM is highly resistant to most acids used in well-acidizing, making it far superior to NBR in stimulation service.
Q5: What is the recommended shelf life for FKM seals?
A: FKM has an exceptional shelf life of 20 years if stored in a cool, dry place away from direct sunlight and ozone, making it a great "buy-and-hold" inventory item.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2003
Total Annual:
5,000,000-10,000,000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Shangi Qinuo Industry Co., Ltd was established in the year of 2013 at Shanghai Free Trade Zone, we are a new and high-tech enterprise integrating R&D, production and sales. Since its inception, we adhering to the "Quality for Survival, Innovation Competes For Development " concept, con... Shangi Qinuo Industry Co., Ltd was established in the year of 2013 at Shanghai Free Trade Zone, we are a new and high-tech enterprise integrating R&D, production and sales. Since its inception, we adhering to the "Quality for Survival, Innovation Competes For Development " concept, con...
