Swagelok SS-1VS8 316 stainless steel integral bonnet needle valve with black phenolic knob, 1/2 inch Swagelok tube fitting

Swagelok SS-1VS8 Integral Bonnet Needle Valve

The Swagelok SS-1VS8 is a 316 stainless steel integral-bonnet needle valve with 1/2 inch Swagelok tube fitting ends on both sides. It combines a live-loaded packing system with a vee stem and phenolic knob handle to deliver precise flow control across high-pressure, high-temperature service. Low-emissions certified.

Key Features

Integral-bonnet design (no separate body-to-bonnet joint)
Vee stem for straight-pattern flow control / shutoff
Live-loaded packing system
0.73 Cv with 0.250 in. orifice
316 stainless steel construction
Phenolic knob handle; Low Emissions Certified

Technical Specifications

Part Number: SS-1VS8
Brand: Swagelok
Type: Needle Valve (integral-bonnet, straight pattern, vee stem)
Body Material: 316 Stainless Steel
End Connections: 1/2 in. Swagelok tube fitting (both ends), straight pattern
Orifice: 0.250 in.
Flow Coefficient (Cv): 0.73
Working Pressure: 5000 psig @ 100 F (344 bar @ 37 C); 3130 psig @ 600 F (215 bar @ 315 C)
Temperature Rating: -65 to 600 F (-53 to 315 C)
Stem Type: Vee stem
Stem Packing: Live-loaded packing (PTFE per 1 Series catalog MS-01-164); exact material not stated on product page
Handle: Phenolic knob