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
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