Hikelok SS 316 VCR Instrument Gasket Bellows Sealed Needle Valves - BS1 Series
Hikelok 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),working temperature is from -20ºF to 900ºF (-28ºC to 482ºC). Isolate system fluids and achieve reliable, leak-tight performance with Hikelok BS1 series bellows-sealed valves which use a packless design and a gasketed or welded seal. They are ideal for applications where the seal to atmosphere is critical, and we offer multiple options for general and high-purity service.
* 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
* Variety of end connections
* 316 S.S., brass and monel 400 materials
* Panel and bottom mounting
* Bar, round handle are available
* Precion-formed metal bellows providers reliable seal
* Nonrotating stem tip: spherical, conical and regulating
* Gasket body to bellows seal is standard, weld seal also available
* Replaceable bellows and stem assembly
* Every valve is tested with helium for 10s to a maximum leak rate of 4 ×10-9 std cm3/s


* Stainless steel actuator is hardened for strength and wear resistance
* Actuator-stem coupling design ensures positive stem retraction
* Precision-formed metal bellows provides reliable seal to atmosphere.
* Actuator threads are protected from system contaminants
* Actuator backstop enhances bellows life
* 100% factory tested
More options:
* Optional gasket seal, welded seal tip material
* Optional soft,PCTFE,PEEK,ball,regulating tip type
* Optional black,red,green,blue handles
* Optional aluminum bar,stainless steel bar,black knob,pneumatic actuators handles
Pressure-Temperature Ratings
Body Material | 316 S.S. | Brass | Alloy 400 | ||||
Options | PCTFE(Tip) &Gasket body-to-bellows Seal | 316 S.S.(Tip) &Gasket body-to-bellows Seal | 316 S.S.(Tip) &Welded body-to-bellows Seal | PCTFE(Tip) &Gasket body-to-bellows Seal | 316 S.S.(Tip) &Gasket body-to-bellows Seal | PCTFE(Tip) &Gasket body-to-bellows Seal | 316 S.S.(Tip) &Gasket/Welded body-to-bellows Seal |
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) |
300(148) | - | 660(45.5) | 660(45.5) | - | 430(29.6) | - | 530(36.5) |
400(204) | - | 500(34.4) | 500(34.4) | - | 150(10.3) | - | 450(31.0) |
500(260) | - | 450(31.0) | 450(31.0) | - | - | - | 375(25.8) |
600(315) | - | 400(27.5) | 400(27.5) | - | - | - | - |
650(343) | - | - | 360(24.8) | - | - | - | - |
700(371) | - | - | 330(22.7) | - | - | - | - |
750(398) | - | - | 300(20.6) | - | - | - | - |
800(426) | - | - | 260(17.9) | - | - | - | - |
850(454) | - | - | 230(15.8) | - | - | - | - |
900(482) | - | - | 200(13.7) | - | - | - | - |
Standard Construction

Component | 316 S.S. | Material Grade / ASTM Specification | ||
Brass | Alloy 400 | |||
1 | Handle | Anodized aluminum 2024-T4/B211 | ||
2 | Screw | Alloy Steel / ANSI 18.3 | ||
3 | Actuator | 416 S.S. / A582 | 416 S.S. / A582 | 416 S.S. / A582 |
4 | Bonnet | 316 S.S. / A479 | Brass / B16 | 316 S.S. / A479 |
5 | Nut | 316 S.S. / B783 | ||
6 | Pin | 420 S.S. | ||
7 | Bonnet Nut | Sliver-plated 316 S.S. / A479 | Slive-plated Brass / B16 | Sliver-plated 316 S.S. / A479 |
8 | Gasket | Silver-plated 316 S.S. / A580 | Sliver-plated Alloy 400 / AMS4730 | |
PTFE-coated 316 S.S. / A580 | PTFE-coated Alloy 400 / AMS4730 | |||
9 | Stem | 316 S.S. / A479 | Alloy 400 / B164 | |
Weld Ring | 316 S.S. / A479 | Alloy 400 / B164 | ||
Bellows | 316 S.S. | Alloy 400 / B165 | ||
10 | Stem Tip | 316 S.S. / A479 (regulating) | Alloy k-500 / AMS4676 (regulating) | |
PCTFE / D1430 (conical) | PCTFE/D1430 (conical) | |||
Weld Stellite (regulating or spherical) | - | |||
11 | Body | 316 S.S. / A479 | Brass / B16 | Alloy 400/B164 |
Product Demensions

Basic Ordering Number | Connection Type and Size | Orifice in. (mm) | Cv | Dimension in. (mm) | ||||||||
A | B | C | D | E | L | W | H | Φd | ||||
BS1-F4-04- | 1/4" Hikelok | 0.16 (4.1) | 0.36 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 2.46 (62.5) | 1.00 (25.4) | 1.06 (27.0) | 1.00 (25.4) |
BS1-F6-06- | 3/8" Hikelok | 0.26 (6.6) | 0.80 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.52 (64.0) | 3.09 (78.5) | 1.00 (25.4) | 1.57 (39.9) | 1.00 (25.4) |
BS1-F8-08- | 1/2" Hikelok | 0.30 (7.6) | 1.20 | 2.24 (56.8) | 0.56 (14.2) | 4.13 (104.8) | 0.39 (10.0) | 2.52 (64.0) | 3.30 (83.8) | 1.13 (28.7) | 1.57 (39.9) | 1.13 (28.7) |
BS1-M6-04- | 6 mm Hikelok | 0.16 (4.1) | 0.36 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 2.46 (62.5) | 1.00 (25.4) | 1.06 (27) | 1.00 (25.4) |
BS1-M10-08- | 10 mm Hikelok | 0.28 (7.1) | 1.00 | 2.24 (56.8) | 0.56 (14.2) | 4.13 (104.8) | 0.39 (10.0) | 2.52 (64.0) | 3.11 (79.0) | 1.13 (28.7) | 1.57 (39.9) | 1.13 (28.7) |
BS1-M12-08- | 12 mm Hikelok | 0.30 (7.6) | 1.20 | 2.24 (56.8) | 0.56 (14.2) | 4.13 (104.8) | 0.39 (10.0) | 2.52 (64.0) | 3.30 (83.8) | 1.13 (28.7) | 1.57 (39.9) | 1.13 (28.7) |
BS1-FSW4-04- | 1/4" FSW | 0.16 (4.1) | 0.36 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 1.68 (42.7) | 1.00 (25.4) | 1.00 (25.4) | 1.00 (25.4) |
BS1-FSW6-08- | 3/8" FSW | 0.28 (7.1) | 1.00 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 2.27 (57.7) | 1.00 (25.4) | 1.06 (27) | 1.00 (25.4) |
BS1-FSW8-08- | 1/2" FSW | 0.30 (7.6) | 1.20 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 2.27 (57.7) | 1.00 (25.4) | 1.06 (27) | 1.00 (25.4) |
BS1-FBW4-04- | 1/4" FBW | 0.16 (4.1) | 0.36 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 1.68 (42.7) | 1.00 (25.4) | 1.00 (25.4) | 1.00 (25.4) |
BS1-FBW6-08- | 3/8" FBW | 0.28 (7.1) | 1.00 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 2.18 (55.4) | 1.00 (25.4) | 1.06 (27.0) | 1.00 (25.4) |
BS1-FBW8-08- | 1/2"FBW | 0.30 (7.6) | 1.20 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 2.18 (55.4) | 1.00 (25.4) | 1.06 (27.0) | 1.00 (25.4) |
BS1-FGFS4-04- | 1/4" Female GFS | 0.16 (4.1) | 0.36 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.52 (64.0) | 2.76 (70.1) | 1.00 (25.4) | 1.00 (25.4) | 1.00 (25.4) |
BS1-FGFS8-08- | 1/2" Female GFS | 0.30 (7.6) | 1.20 | 2.24 (56.8) | 0.56 (14.2) | 4.13 (104.8) | 0.39 (10.0) | 2.52 (64.0) | 3.12 (79.2) | 1.13 (28.7) | 1.50 (38.1) | 1.13 (28.7) |
BS1-GFS4-04- | 1/4" Male GFS | 0.16 (4.1) | 0.36 | 2.12 (53.8) | 0.5 (12.7) | 4.01 (101.8) | 0.39 (10.0) | 2.20 (56.0) | 2.24 (56.9) | 1.00 (25.4) | 1.00 (25.4) | 1.00 (25.4) |
BS1-GFS8-08- | 1/2" Male GFS | 0.30 (7.6) | 1.20 | 2.24 (56.8) | 0.56 (14.2) | 4.13 (104.8) | 0.39 (10.0) | 2.52 (64.0) | 3.00 (76.2) | 1.13 (28.7) | 1.50 (38.1) | 1.13 (28.7) |
Pneumatic Actuators
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


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2, Provide us of the model of Swagelok, Dk-lok or Parker.

Certificates: PED / ABS / ISO9001 / ISO14001 / ISO45001 / F1387
Product Range: ISO, ANSI, ASME, ASTM, API, MSS, EN, GB, HG, JB and other standards.
Fittings: Twin Ferrule Tube Fittings, Threaded Pipe Fittings, Welded Fittings, Quick Connectors, Vacuum Fittings, Flange Fittings.
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Ultra-high Pressure Products: Ultra-High Pressure Fittings, Ultra-High Pressure Ball Valves, Ultra-High Pressure Needle Valves, Ultra-High Pressure Check Valves, Ultra-High Pressure Safety Valves, Ultra-High Pressure Filters, Sub-Sea Valves.
Ultrahigh-Purity Products: EP Tubes, VCR Fittings, Miniature Butt-Weld Fittings, Pressure Reducing Regulators, Diaphragm Valves, Bellows Sealed Valves.
Other Products: Sampling Systems, Sampling Cylinders, Air Headers.
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Factory Qualification:
We has obtained 5 national invention patents, 23 utility model patents, 13 certificates such as IS0 9001 (TUV certification), ABS product design certification, PED 4.3 material license certification, TSG special equipment (valve) production license, etc., and has been awarded the titles of "National High-tech Enterprise", "Safety Production Standardization Level III Enterprise" and "Sichuan 'Specialized, Special and New' Small and Medium-sized Enterprises"