Shop Stauff SMK Test Points
Our Stauff Series SMK Test Point is a high-performance diagnostic coupling designed for fast and reliable monitoring, venting, and fluid sampling in both high- and low-pressure hydraulic systems. Engineered with precision to meet ISO 15171-2 standards, this test point allows secure connections even under pressure—up to 400 bar (5801 PSI)—and supports a maximum working pressure of 630 bar (9137 PSI). Ideal for maintenance and system control applications, it enables technicians to connect pressure gauges or diagnostic equipment without system shutdown. Available in G and K types, the SMK Test Point delivers superior sealing, easy accessibility, and long-lasting durability, making it essential for efficient hydraulic performance and safety.
Test Coupling Type:
Port Connections:
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Body Material:
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Test Coupling with Ball Check
NPT, ORB
Buna, Viton
Zinc/Nickel-plated Carbon Steel, 316 Stainless Steel
Click HERE to view the Stauff SMK Catalog
Click HERE to view the entire Test Point Collection

ORB Test Points

NPT Test Points

Viton Test Points
Shop Stauff SMK Test Points
Click on the model number in the chart below to view that item.
| Product SKU ▼ | Model Code ▼ | Port Size and Type ▼ | Body Material ▼ | Seal Material ▼ | Lead Time ▼ | Price ▼ |
|---|---|---|---|---|---|---|
| 1210026029 | SMK-20-1/4NPT-B-D-W3 | 1/4" NPT | Carbon Steel | Buna | 4-6 Weeks | $20.95 |
| 1210026030 | SMK-20-1/4NPT-D-W3 | 1/4" NPT | Carbon Steel | Viton | 4-6 Weeks | $14.46 |
| 1210001534 | SMK-20-1/4NPT-D-W5 | 1/4" NPT | 316 Stainless Steel | Viton | 4-6 Weeks | $191.74 |
| 1210026059 | SMK-20-7/16UNF-B-E-W3 | -4 (1/4") SAE | Carbon Steel | Buna | Same Day | $21.28 |
| 1210026061 | SMK-20-7/16UNF-V-E-W3 | -4 (1/4") SAE | Carbon Steel | Viton | Same Day | $20.95 |
| 1210026062 | SMK-20-9/16UNF-BE-W3 | -6 (3/8") SAE | Carbon Steel | Buna | 4-6 Weeks | $21.28 |
| 1210008791 | SMK-20-9/16UNF-V-E-OL-W4 | -6 (3/8") SAE | 304 Stainless Steel | Viton | Same Day | $81.09 |
| 1210002676 | SMK20-7/16UNF-B-E-W5 | -4 (1/4") SAE | 316 Stainless Steel | Buna | Same Day | $263.86 |
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Please see below for additional dimensional and installation details.

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