Place of Origin:
China
Brand Name:
FH®
Certification:
ISO9001, ISO14001
Model Number:
FH 1401
FH® Engineered for Durability. Precision in Every Seal.
This Gas Collector Valve Disc (Valve Clack / Valve Flapper) is precision-manufactured by FH® from high-grade 42CrMo alloy steel. Designed for high-pressure gas collection systems, it offers exceptional impact toughness, fatigue resistance, and dimensional stability, ensuring a perfect seal and extended service life in demanding industrial environments.
Key Features & Benefits
1. Premium Material (42CrMo):
Unlike standard carbon steel or 45# steel, 42CrMo offers superior hardenability. FH® components maintain high creep strength and durability even under extreme operating temperatures and fluctuating pressures, effectively preventing valve leakage caused by deformation.
2. FH® Precision Machining:
The sealing surface is ground to a mirror finish (Ra ≤ 0.4μm) to ensure a perfect fit with the valve seat, achieving zero leakage during the closing cycle. Each FH® valve disc is manufactured under strict ISO 9001:2015 process control.
3. Enhanced Surface Treatment:
Optional anti-corrosion coatings (e.g., electroless nickel plating or hard chrome plating) are available to resist hydrogen sulfide (H₂S) and other corrosive media found in natural gas and petrochemical applications.
4. Customizable Dimensions:
Available in standard sizes or custom-made based on OEM drawings to meet specific requirements for compressor valves, engine valves, or pipeline collectors. FH® offers complete OEM replacement solutions.
Technical Specifications
| Parameter | Specification |
| Brand | FH® |
| Material Grade | 42CrMo (AISI 4140 / DIN 1.7225 Equivalent) |
| Tensile Strength | ≥ 1080 MPa |
| Yield Strength | ≥ 930 MPa |
| Hardness | 28-32 HRC (Customizable up to 45 HRC upon request) |
| Impact Toughness | ≥ 63 J/cm² |
| Surface Finish | 0.2 – 0.8 μm (Ground & Polished) |
| Application | Gas Collectors, Reciprocating Compressors, High-Pressure Vessels |
| Standard | API 618 / ISO 9001/ ISO14001 Certified Process |
Why 42CrMo?
In high-pressure gas collection systems, valve discs are subjected to high-frequency impact loads. Ordinary steel is prone to fatigue fracture or permanent deformation under alternating stress, resulting in seal failure.
1. High Fatigue Resistance:
Quenched and tempered (quenching + high-temperature tempering) 42CrMo offers excellent toughness and fatigue resistance, making it particularly suitable for high-speed reciprocating compressors.
2. Low-Temperature Impact Resistance:
It maintains outstanding mechanical properties even in cold climates or with low-temperature media, preventing low-temperature brittle fracture.
3. Wear Resistance:
Uniform hardness effectively resists erosion and wear caused by fine particles entrained in the gas on sealing surfaces, significantly extending the Mean Time Between Overhauls (MTBO).
Applications
This FH® valve disc is widely used in critical industrial sectors:
Why Choose FH®?
FAQ
Q1: What material is used for this valve disc?
A: It is manufactured from 42CrMo high-strength alloy steel (AISI 4140 / DIN 1.7225 equivalent), offering excellent fatigue resistance and impact toughness for high-pressure gas collection applications.
Q2: Can you produce custom sizes or non-standard designs?
A: Yes. FH® accepts OEM orders based on your drawings or samples. We can customize dimensions, hardness, and surface coating to match your specific valve assembly requirements.
Q3: Do you provide material test certificates?
A: Yes. EN 10204 Type 3.1 material test certificates are available upon request, ensuring full material traceability and quality compliance.
Q4: What is the lead time?
A: Standard sizes: 5–7 working days. Custom orders: 15–20 working days, depending on quantity and specifications.
Q5: How do I request a quote?
A: Contact us with your part number, drawing, or key specifications. We will respond with a competitive quote within 24 hours.
Send your inquiry directly to us
