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Home > Needle Valve > Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
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Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves
Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves

Swagelok Type Ss 316 VCR Instrument Gasket Bellows Sealed Needle Valves

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Product Description

SS 316 VCR Instrument Gasket Bellows Sealed Needle Valves - BS1 Series

BS1 series bellows-sealed valves are available in a variety of models for system versatility. Working pressure is up to 1000 psig (68.9 bar), and working temperature ranges from -20ºF to 900ºF (-28ºC to 482ºC). These valves isolate system fluids and achieve reliable, leak-tight performance using a packless design and a gasketed or welded seal. They are ideal for applications where the seal to atmosphere is critical, offering multiple options for general and high-purity service.

Gasket Bellows Sealed Needle Valves
Instrument Gasket Bellows Sealed Needle Valves
Features
  • Maximum working pressure up to 1000 psig (68.9 bar)
  • Working temperature from -20ºF to 900ºF (-28ºC to 482ºC)
  • Flow coefficients (Cv) from 0.12 to 1.2
  • 316 S.S., brass and monel 400 materials
  • Panel and bottom mounting
  • Nonrotating stem tip: spherical, conical and regulating
  • Tested with helium to leak rate of 4 × 10⁻⁹ std cm³/s
Advantages & Options
  • Actuator-stem coupling ensures positive stem retraction
  • Actuator threads protected from system contaminants
  • Actuator backstop enhances bellows life
  • Optional gasket seal or welded seal tip material
  • Optional soft, PCTFE, PEEK, ball, regulating tip type
  • Optional black, red, green, blue handles
Pressure-Temperature Ratings
Body Material 316 S.S. Brass Alloy 400
Temperature ºF(ºC) Working Pressure, psig(bar)
-20(-23) to 100(37) 1000(68.9) 1000(68.9) 1000(68.9) 1000(68.9) 1000(68.9) 700(48.2) 700(48.2)
200(93) 830(57.2) 830(57.2) 830(57.2) 710(48.9) 710(48.9) 610(42.0) 610(42.0)
400(204) - 500(34.4) 500(34.4) - 150(10.3) - 450(31.0)
900(482) - - 200(13.7) - - - -
Standard Construction
Construction Diagram
No. Component 316 S.S. Brass Alloy 400
1 Handle Anodized aluminum 2024-T4/B211
4 Bonnet 316 S.S. / A479 Brass / B16 316 S.S. / A479
9 Bellows 316 S.S. Alloy 400 / B165
11 Body 316 S.S. / A479 Brass / B16 Alloy 400/B164
Product Dimensions
Dimensions Diagram
Pneumatic Actuators
Actuator Features:
  • Low actuation pressure
  • Aluminum and stainless steel components
  • Reliable piston design for enhanced cycle life
Actuation Modes:
  • Normally open (NO) - air closes, spring opens
  • Double acting (PD) - air opens and closes
  • Normally closed (NC) - air opens, spring closes
Pneumatic Actuators
Actuator Dimensions
Certifications & Capacity
Product Standards: ISO, ANSI, ASME, ASTM, API, MSS, EN, GB, HG, JB and other international standards.
Certificates
Certificates Held: PED / ABS / ISO9001 / ISO14001 / ISO45001 / F1387

Our facility has obtained 5 national invention patents, 23 utility model patents, and 13 material and production licenses including TUV certification and TSG special equipment production licenses.

Product Range
Factory Qualification
Frequently Asked Questions
Q1: What is the maximum pressure rating for the BS1 series valves? A: The BS1 series bellows-sealed valves can handle a maximum working pressure of up to 1000 psig (68.9 bar).
Q2: What is the operating temperature range? A: These valves are designed to operate in temperatures ranging from -20ºF to 900ºF (-28ºC to 482ºC), depending on the material and seal options selected.
Q3: How are the valves tested for leaks? A: Every valve undergoes helium leak testing for 10 seconds to ensure a maximum leak rate no higher than 4 × 10⁻⁹ std cm³/s.
Q4: Are pneumatic actuation options available? A: Yes, we offer Normally Open (NO), Normally Closed (NC), and Double Acting (PD) pneumatic actuators made from aluminum and stainless steel components.
Q5: What materials are used for the valve bodies? A: Standard body materials include 316 Stainless Steel, Brass, and Alloy 400 (Monel).
Q6: Can these valves be used in high-purity applications? A: Yes, the BS1 series is ideal for critical applications where a seal to the atmosphere is essential, including ultra-high purity service.

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