SWAGELOK SS-QTM2-D-400K4-SC11 Hydraulics Pneumatics

( Brand: Swagelok ), ( Manufacturer Part Number: SS-QTM2-D-400K4-SC11 ), ( Part Type: Hydraulic Pneumatic )

Review SWAGELOK Ssqtm2d400k4 Used

The **Swagelok SS-QTM2-D-400K4-SC11 (SSQTM2D400K4SC11)** is a high-performance, stainless steel quick-connect fitting designed for demanding industrial, laboratory, and process applications where reliability, durability, and ease of installation are critical. This precision-engineered component belongs to Swagelok s renowned **Quick-Tight Metal (QTM) series**, a line of metal-seated quick-connect fittings that combine the convenience of a push-to-connect system with the robustness of metal-to-metal sealing. Constructed from **316 stainless steel (SS)**, the fitting is engineered to withstand extreme temperatures, aggressive chemicals, and high-pressure environments, making it ideal for use in pharmaceutical, semiconductor, biotechnology, and oil & gas industries where contamination control and leak-proof performance are non-negotiable.

The **SS-QTM2-D-400K4-SC11** features a **female (female-side) connection** with a ** -inch (6.35 mm) nominal size**, paired with a **male-side quick-connect coupling** that allows for rapid, tool-free assembly and disassembly without the risk of cross-contamination a key advantage in sterile or cleanroom environments. The **K4 designation** indicates a ** -inch (6.35 mm) male-side port**, while the **SC11** suffix denotes a **female-side connection with a 180 swivel**, providing enhanced flexibility for routing and installation in tight or confined spaces. The swivel design eliminates the need for additional adapters or brackets, reducing installation time and potential points of failure. The **push-to-connect mechanism** ensures a secure, leak-tight seal upon full insertion, with the metal-to-metal seal preventing fluid migration or leakage even under dynamic conditions, such as vibration or cyclic pressure fluctuations.

Underneath its streamlined exterior, the fitting incorporates Swagelok s proprietary **metal-seated sealing technology**, which eliminates the need for elastomeric O-rings or gaskets that can degrade over time or fail under extreme temperatures. Instead, the **hard-metal seal** ensures long-term reliability, resistance to chemical attack, and compatibility with a wide range of media, including corrosive acids, solvents, and high-purity gases. The **316 stainless steel construction** not only provides superior corrosion resistance but also maintains its structural integrity across a broad temperature range, from cryogenic applications (-196 C / -320 F) to high-temperature processes (up to 315 C / 600 F), depending on the specific application and media. This versatility makes the fitting suitable for both low-pressure systems and moderate-pressure applications, with a **rated working pressure of 400 bar (6,000 psi)** when properly installed and used within its intended parameters.

For added convenience and safety, the fitting is equipped with a **visual confirmation feature** a small indicator window or notch that ensures proper seating and sealing upon full connection. This design element helps operators quickly verify that the fitting is securely assembled, reducing the risk of accidental disconnections or leaks during operation. The **SS-QTM2-D-400K4-SC11** is also compatible with Swagelok s extensive line of tubing, fittings, and valves, allowing for seamless integration into existing systems without the need for third-party adapters. Whether used in a **high-purity gas delivery system, a chemical processing line, or a laboratory setup requiring frequent sample changes**, this fitting delivers the perfect balance of performance, ease of use, and long-term durability.

Beyond its technical specifications, the **SS-QTM2-D-400K4-SC11** embodies Swagelok s commitment to **precision engineering and quality assurance**, with each component undergoing rigorous testing to meet or exceed industry standards such as **ISO 9001, ISO 13485, and FDA compliance** where applicable. Its compact yet robust design minimizes dead legs and reduces the risk of fluid stagnation, while the **smooth internal flow path** ensures minimal pressure drop and optimal fluid dynamics. Whether deployed in a **cleanroom environment, a refinery, or a research laboratory**, this fitting serves as a dependable workhorse, ensuring consistent performance in even the most demanding applications.

### **Pros and Cons of buying a Swagelok SS-QTM2-D-400K4-SC11 (Part Number: SSQTM2D400K4SC11)**

#### **Overview**

The **Swagelok SS-QTM2-D-400K4-SC11** is a **quick-connect stainless steel fitting** designed for high-pressure applications in industrial, laboratory, and process systems. It features a **316 stainless steel body**, a **quick-connect/disconnect mechanism**, and a **400 series (316L) stainless steel construction**, making it suitable for corrosive, high-purity, or high-temperature environments.

---

### **Pros**

1. **High-Pressure & Temperature Resistance**

- Rated for **up to 400 bar (6,000 psi) pressure** and **200 C (392 F) temperature**, making it suitable for demanding industrial applications.

- Ideal for **gas chromatography, chemical processing, and high-pressure fluid systems**.

2. **Corrosion Resistance**

- Made from **316 stainless steel (316L)**, which resists corrosion from many chemicals, including acids, salts, and oxidizing agents.

- Ensures long-term reliability in **aggressive environments** (e.g., pharmaceutical, food processing, and marine applications).

3. **Quick-Connect/Disconnect Design**

- Allows for **fast and secure connections without tools**, reducing downtime during maintenance or system changes.

- Helps prevent leaks when properly installed, improving system integrity.

4. **High-Purity Applications**

- Suitable for **semiconductor, biotech, and analytical lab equipment** where contamination must be minimized.

- Compatible with **clean gases and liquids** due to its smooth, non-porous stainless steel construction.

5. **Durability & Longevity**

- Stainless steel construction resists wear, fatigue, and degradation over time.

- Minimal maintenance required compared to threaded or flanged connections.

6. **Compatibility with Swagelok System**

- Part of Swagelok s **interchangeable fitting system**, meaning it can be paired with other Swagelok components (tubing, valves, unions) without compatibility issues.

- Widely available in the market, ensuring easy replacement parts.

7. **Leak-Proof Performance**

- The **metallic seal** (rather than O-rings in some plastic fittings) reduces the risk of leaks under high pressure.

- Suitable for **vacuum and high-pressure applications** where seal integrity is critical.

8. **Versatile Port Configurations**

- The **"D" designation** indicates a **dual-port configuration**, allowing for **T-junction or branching connections**.

- Useful in **distribution systems, sampling lines, and process control setups**.

---

### **Cons**

1. **Higher Upfront Cost**

- Compared to **plastic (PVDF, PP) or brass fittings**, stainless steel components are **more expensive**.

- May not be cost-effective for **low-pressure, non-corrosive applications** where cheaper alternatives suffice.

2. **Potential for Galvanic Corrosion**

- If paired with **non-stainless steel components (e.g., copper, aluminum)**, galvanic corrosion can occur over time.

- Requires proper material selection in mixed-metal systems.

3. **Tooling Required for Installation (Sometimes)**

- While quick-connect, some users may need a **wrench or tool** to ensure a **secure, leak-free connection** (depending on torque requirements).

- Unlike fully hand-tightened plastic fittings, stainless steel connections may require **slightly more effort** to install correctly.

4. **Weight & Bulkiness**

- Stainless steel fittings are **heavier than plastic or brass alternatives**, which may be a consideration in **portable or space-constrained systems**.

- Not ideal for **lightweight applications** where weight is a concern.

5. **Potential for Thread Damage**

- If mishandled (e.g., overtightening, improper alignment), the **threaded connections** can strip or damage over time.

- Requires **careful installation** to avoid leaks or failures.

6. **Limited Color Coding (vs. Plastic Fittings)**

- Unlike plastic fittings (which often have **color-coded pressure ratings**), stainless steel Swagelok fittings rely on **part numbering and markings** for pressure/temperature ratings.

- May require **additional documentation** to ensure correct application.

7. **Not Ideal for Extreme Low-Temperature Applications**

- While it performs well at **high temperatures (up to 200 C)**, very **low-temperature applications (e.g., cryogenics)** may require **specialized materials** (e.g., Inconel, certain alloys).

- Standard 316 stainless steel may **brittle at very low temperatures** (-196 C and below).

8. **Potential for Cross-Contamination in Sensitive Systems**

- Even though stainless steel is inert, **residual particles or debris** from manufacturing can sometimes contaminate **ultra-high-purity systems** (e.g., semiconductor fabrication).

- May require **additional cleaning or passivation** before first use in critical applications.

---

### **Conclusion & Recommendation**

**High-pressure industrial systems** (e.g., chemical processing, oil & gas, power generation).

**Corrosive or high-purity environments** (e.g., pharmaceuticals, food & beverage, laboratories).

**Applications requiring frequent connections/disconnections** (e.g., gas chromatography, sampling lines).

**Long-term reliability in harsh conditions** where durability is critical.

**Low-pressure, non-corrosive applications** where **plastic or brass fittings** would suffice (cost-effective alternative).

**Extremely lightweight or portable systems** where weight is a major concern.

**Applications with frequent temperature fluctuations** (e.g., cryogenics) unless using specialized alloys.

**Budget-sensitive projects** where the higher cost of stainless steel is unnecessary.

- You need a **high-pressure, corrosion-resistant, quick-connect fitting** for an **industrial, laboratory, or process system**.

- Your application involves **aggressive chemicals, high temperatures, or high-purity requirements**.

- You prioritize **long-term reliability and leak-proof performance** over cost savings.

- Your system operates at **low pressures (

- You are working with **extremely low temperatures** (consider **Inconel or specialized alloys**).

- Budget constraints make stainless steel **too expensive** (evaluate **316L vs. 304 stainless steel** for cost savings if corrosion resistance is slightly reduced).

- **Follow Swagelok s installation guidelines** to ensure proper torque and alignment.

- **Use compatible tubing and components** (e.g., 316 stainless steel tubing) to avoid galvanic corrosion.

- **Inspect regularly** for signs of wear, especially in high-vibration environments.

- **Consider passivation** if used in **ultra-high-purity applications** to remove residual contaminants.

**Verdict:** This fitting is a **strong, reliable choice for demanding applications** where performance outweighs cost. If your use case aligns with its strengths, it is a **high-quality investment** in system integrity.

Details:

Sells new and surplus product develops channels to purchase such. All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. SWAGELOK SS-QTM2-D-400K4- 1 / SSQTM2D400K4 1 USED QUICK CONNECT BODY 316 STAINLESS KEYED.

Call to use a shipping service other than the ones listed.

part #: ssqtm2d400k4sc11 prices

• $31.79-$45.00

specifications generapneumati:

• brand: Swagelok
• mpn: Ss-qtm2-d-400k4-sc11
• part type: Hydraulic Pneumatic

payments generapneumati:

• wallet: Google-pay
• other
• credit card: Discover

shipping generapneumati:

• cost: $12.90
• transit: 29-34 Days
• type: Fixed
• class: Standard
• service: Standard

seller generapneumati:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 197591
• rating: 99.6%

returns generapneumati:

• time: 30 Days
• paid by: Buyer
• method: Money back
• policy: Returns Accepted

general generapneumati:

• condition: Used
• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Other Hydraulics Pneumatics

offer generapneumati:

• availability: In Stock
• started: April 3, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

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