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NW Tees: Standard, Reducing, Adapter

 

 

Tees

  • Stainless steel type 304

Tees

Tees

 
PART NUMBER FLANGE SIZE A B
KST-4510 NW 10 1.25 2.50
KST-4516 NW 16 1.57 3.15
KST-4525 NW 25 2.04 4.08
KST-4540 NW 40 2.56 5.12
KST-4550 NW 50 3.21 5.51
KST-4550-M NW 50 2.76 5.51

 

 

Tees Reducing

  • Stainless steel type 304

Tees Reducing

Tees Reducing

 
PART NUMBER FLANGE SIZE A B C
KST-4625 NW 25 to 16 3.94 1.08 1.97
KST-4640 NW 40 to 16 5.12 1.32 2.56
KST-4650 NW 50 to 16 5.51 1.58 2.76
KST-4640-25 NW 40 to 25 4.92 2.40 2.46
KST-4650-25 NW 50 to 25 6.42 2.84 3.21
KST-4650-40 NW 50 to 40 6.42 2.74 3.21

 

 

Adapter Tee

  • Stainless steel type 304
  • ISO-KF flanges, same on thru ports, female NPT on tee port

Adapter Tee

Adapter Tee

 
PART NUMBER FLANGE SIZE (A) FEMALE NPT SIZE B
KST-9916 NW 16 1/8 1.57
KST-9916-1 NW 16 1/4 1.57
KST-9925 NW 25 1/8 1.57
KST-9925-1 NW 25 1/4 1.57
KST-9940 NW 40 1/8 1.57
KST-9940-1 NW 40 1/4 1.57
KST-9950 NW 50 1/8 1.57
KST-9950-1 NW 50 1/4 1.57

 

 

Adapter Tee

  • 6061T6 Aluminum
  • ISO-KF flanges, same on thru ports, female NPT on tee port

Adapter Tee

Adapter Tee

 
PART NUMBER FLANGE SIZE (A) FEMALE NPT SIZE B
KST-10016 NW 16 1/8 1.57
KST-10016-1 NW 16 1/4 1.57
KST-10025 NW 25 1/8 1.57
KST-10025-1 NW 25 1/4 1.57
KST-10040 NW 40 1/8 1.57
KST-10040-1 NW 40 1/4 1.57
KST-10050 NW 50 1/8 1.57
KST-10050-1 NW 50 1/4 1.57

Product information is subject to change without notice. Product images may include options or accessories not included with the base model.

Precision Welded. Performance Proven.
For 50 years, Key High Vacuum Products, Inc. has been a trusted leader in precision-engineered stainless steel high vacuum weldments. With tens of thousands of unique weldments in use—from particle accelerators to industrial leak detectors—our expertise is proven across industries. Rooted in innovation, craftsmanship, and an unwavering commitment to customer satisfaction, we deliver high-quality, customized solutions that drive success. Every day, our team brings a unique blend of passion and precision, ensuring your goals are met with excellence—because your mission matters. Experience the Key High difference.
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Key High Vacuum Products, Inc.
36 Southern Boulevard, Nesconset, NY 11767
1-631-360-3970
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