1. For application of changes OSHA Standard Pressure Relief 3 Port Valve with Locking Holes Existing Series VHS20~50 (Discontinued) New Series VHS20~50-A,B

2. For application of changes 1. Main differences 1. Energy saving / Improved flow-rate characteristics (P5 and 6) The max. 45% increased effective area shortens supply and exhaust times. Resin handle and bonnet are available to reduce the weight. No air bleed when the handle switches reduces energy consumption. 2. White external color (P7) External color changed from silver to white. 3. Additional variations (P8 and 9) Applicable sizes to the double action type expanded and options added. 4. Specifications and performance (P10) No change from the existing series. 5. Mounting interchangeability (P12 and 13) Mounting (face-to-face) dimensions are interchangeable, but the product height varies for specific models. Main differences from the existing series

3. For application of changes 2. How to Order (New Series) (1) Single Action Type VHS 40 – 04 A – BS – – Body size 20 30 40 50 Thread type NilRc FG NNPT Port sizeBody size SymbolSize20304050 011/8●--- 021/4●●●- 033/8-●●- 041/2--●- 063/4--●● 101---● Handle / Bonnet material AFlame resistant PBT BAluminum Made-to-order X1Red body *1) Available only for the NPT thread type. How to Order: No change from the existing series. The new series has the "A" or "B" identification symbol added after the port size. Option SymbolContent BWith bracket SSilencer built-in (EXH port) Semi-standard SymbolContent KBlack handle RReverse flow: Right to left Z *1 Units on product label: psi Identification symbol for new series

4. For application of changes 2. How to Order (New Series) (2) Double Action Type VHS 4 510 – 04 A – BS – – Body size 2 3 4 5 Thread type NilRc FG NNPT Port sizeBody size SymbolSize2345 011/8●--- 021/4●●●- 033/8-●●- 041/2--●- 063/4--●● 101---● Handle / Bonnet material AFlame resistant PBT BAluminum Option SymbolContent BWith bracket SSilencer built-in (EXH port) Semi-standard SymbolContent KBlack handle RReverse flow: Right to left Z *1 Units on product label: psi Made-to-order X1Red body Double action *1) Available only for the NPT thread type. How to Order: No change from the existing series. The new series has the "A" or "B" identification symbol added after the port size. Identification mark for new series

5. For application of changes 3. Features (2)  Lower air consumption No air bleed when the handle switches reduces energy consumption. Existing series Poppet Valve INOUT EXH Seating surface New series Spool Seating surface O-ring IN, OUT and EXH ports are connected during the valve moving. = Bleeding air O-ring IN, OUT and EXH ports are NOT connected during the valve moving. = Not bleeding air

6. For application of changes 3. Features (1) Weight reduction with material change to resin Max 60% down ModelExisting series New series Reduction VHS20190g76g-60% VHS30250g127g-49% VHS40350g247g-29% VHS50770g532g-31% Improved flow-rate characteristics Improved flow-rate characteristics Model C (dm 3 /S ・ bar) Improvem ent Existing series New series VHS201.992.41+21% VHS306.208.32+34% VHS4011.014.2+29% VHS5016.423.8+45% Max. 45% up Resin handle and bonnet Supply and exhaust times can be shortened.

7. For application of changes 3. Features (3)  Improved flow-rate characteristics Bright color with urban white base New series Existing series Urban white Platinum silver With locking holes [Prevents accidents caused by unintentional air supply]

8. For application of changes 3. Features (4)  Variations expanded Applicable models Size 2510 added Size 3510 added SizeExisting series New series 2510● 3510● 4510○○ 5510○○ Double action Push and turn, 2 step mechanism to prevent incorrect operation of the handle Turn the handle. Push down the handle

9. For application of changes 3. Features (5)  Variations expanded Options added "-B": With bracket “-S”: Built-in silencer (EXH port) Exhaust air Options Element cover O-ring With bracket Cross recessed round head screw Bracket Built-in silencer (EXH port) Element Element cover

10. For application of changes 4. Specifications * Platinum silver for the existing series. Model VHS20VHS30VHS40VHS40-06VHS50 VHS2510VHS3510VHS4510VHS4510-06VHS5510 FluidAir Ambient and fluid temperature -5~60 o C (No freezing) Proof pressure1.5 MPa Operating pressure range0.1~1.0 MPa Handle switching angle 90o External color (Standard) Handle: Red Body: Urban white Standard specifications

11. For application of changes 5. Construction No.Description Material Remarks VHS20~50-AVHS20~50-B 1BodyADC12Urban white 2Bonnet Plate Flame resistant PBT (Equivalent to V-0) ADC12Urban white 3Handle Flame resistant PBT (Equivalent to V-0) ADC12Red 4Cam ringPOM- 5SpoolPBT- 6Spool O-ringH-NBR- 7Spool springStainless steel- 8SleevePOM- - Measure for low concentration ozone standardized: HNBR. - No use of copper (Cu)

12. For application of changes 6. Dimensions (1) Face-to-face dimensions interchangeable Values in ( ) are dimensions of the existing series. Unit (mm)Dimensions Values in ( ) are dimensions of the existing series. Dimensions in red have changed for the new series. Model Standard specification

13. For application of changes 6. Dimensions (2) Face-to-face dimensions interchangeable Unit (mm)Dimensions Model Option With bracket Built-in silencer